Misplaced Pages

#504495

151-458: In tropical Asia, the distribution and character of the rain forest changes with elevation in the mountains. In Thailand , for instance, the area of tropical forests could increase from 45% to 80% of the total forest cover, while in Sri Lanka , a substantial change in dry forest and decrease in wet forest might occur. With predictable increases in evapotranspiration and rainfall changeability, likely

302-547: A Portuguese diplomatic mission to Ayutthaya, which became a regional power by the end of the 15th century. Ayutthaya reached its peak during the 18th century, until it was destroyed in the Burmese–Siamese War . King Taksin the Great quickly reunified the fragmented territory and established the short-lived Thonburi Kingdom (1767–1782), of which he was the only king. He was succeeded in 1782 by Phutthayotfa Chulalok (Rama I),

453-422: A sea ice model. For example, the standard resolution of HadOM3 is 1.25 degrees in latitude and longitude, with 20 vertical levels, leading to approximately 1,500,000 variables. AOGCMs (e.g. HadCM3 , GFDL CM2.X ) combine the two submodels. They remove the need to specify fluxes across the interface of the ocean surface. These models are the basis for model predictions of future climate, such as are discussed by

604-539: A 14-month siege, the capital city's walls fell and the city was burned in April 1767. The capital and many of its territories lay in chaos after the war. The former capital was occupied by the Burmese garrison army and five local leaders declared themselves overlords, including the lords of Sakwangburi, Phitsanulok , Pimai , Chanthaburi , and Nakhon Si Thammarat . Chao Tak , a capable military leader, proceeded to make himself

755-427: A carbon chemistry transport model may allow a GCM to better predict anthropogenic changes in carbon dioxide concentrations. In addition, this approach allows accounting for inter-system feedback: e.g. chemistry-climate models allow the effects of climate change on the ozone hole to be studied. In 1956, Norman Phillips developed a mathematical model that could realistically depict monthly and seasonal patterns in

906-490: A cell—such as convection—that occur on scales too small to be resolved directly are parameterised at the cell level, while other functions govern the interface between cells. Three-dimensional (more properly four-dimensional) GCMs apply discrete equations for fluid motion and integrate these forward in time. They contain parameterisations for processes such as convection that occur on scales too small to be resolved directly. A simple general circulation model (SGCM) consists of

1057-518: A day. An oceanic submodel is MOM-3 ( Modular Ocean Model ) with a 3.75° × 3.75° grid and 24 vertical levels. One-dimensional, radiative-convective models were used to verify basic climate assumptions in the 1980s and 1990s. GCMs can form part of Earth system models , e.g. by coupling ice sheet models for the dynamics of the Greenland and Antarctic ice sheets , and one or more chemical transport models (CTMs) for species important to climate. Thus

1208-461: A dynamic core that relates properties such as temperature to others such as pressure and velocity. Examples are programs that solve the primitive equations , given energy input and energy dissipation in the form of scale-dependent friction , so that atmospheric waves with the highest wavenumbers are most attenuated. Such models may be used to study atmospheric processes, but are not suitable for climate projections. Atmospheric GCMs (AGCMs) model

1359-520: A general election was scheduled, but was invalidated by the Constitutional Court . The crisis ended with another coup d'état in 2014 . The ensuing National Council for Peace and Order , a military junta led by General Prayut Chan-o-cha , led the country until 2019. Civil and political rights were restricted, and the country saw a surge in lèse-majesté cases. Political opponents and dissenters were sent to "attitude adjustment" camps; this

1510-412: A grid is imposed on the atmosphere. The simplest grid uses constant angular grid spacing (i.e., a latitude / longitude grid). However, non-rectangular grids (e.g., icosahedral) and grids of variable resolution  are more often used. The LMDz model can be arranged to give high resolution over any given section of the planet. HadGEM1 (and other ocean models) use an ocean grid with higher resolution in

1661-464: A grid of 96 by 73 points (96 x 72 for some variables); and has 19 vertical levels. This results in approximately 500,000 "basic" variables, since each grid point has four variables ( u , v , T , Q ), though a full count would give more (clouds; soil levels). HadGEM1 uses a grid of 1.875 degrees in longitude and 1.25 in latitude in the atmosphere; HiGEM, a high-resolution variant, uses 1.25 x 0.83 degrees respectively. These resolutions are lower than

SECTION 10

#1732898501505

1812-529: A lord by right of conquest , beginning with the legendary sack of Chanthaburi . Based at Chanthaburi, Chao Tak raised troops and resources, and sent a fleet up the Chao Phraya to take the fort of Thonburi . In the same year, Chao Tak was able to retake Ayutthaya from the Burmese only seven months after the fall of the city. Chao Tak then crowned himself as Taksin and proclaimed Thonburi as temporary capital in

1963-675: A mesoscale model with an 11 km (6.8 mi) resolution covering the UK, and various agencies in the US employ models such as the NGM and NAM models. Like most global numerical weather prediction models such as the GFS , global climate models are often spectral models instead of grid models. Spectral models are often used for global models because some computations in modeling can be performed faster, thus reducing run times. Climate models use quantitative methods to simulate

2114-533: A negative impact on the viability of freshwater wetlands will occur, resulting in contraction and desiccation. Sea level and temperature rises are the most likely major climate change-related stresses on ecosystems. Coral reefs might be capable of surviving this intensification, but suffer bleaching from high temperatures. Landward migration of mangroves and tidal wetlands is likely to be inhibited by human infrastructure and human activities. Coastal lands in particular are extremely vulnerable to sea-level rise as

2265-452: A period of time. Therefore, they are seen on the tallest trees where they can safely dive to gain momentum to glide. Their flight structure helps separate them ecologically, keeping them from direct opposition with one another for some of the rainforest's resources. In some areas of the forest, up to eight different species of Draco may appear together. Generally, they are closely related species with unique, restrictive life histories living in

2416-584: A powerful faction in Thailand. In response, the royalists made up a story about how Thaskin and his "advisors gathered in Finland to plot the overthrow of the monarchy". Meanwhile, massive protests against Thaksin led by the People's Alliance for Democracy (PAD) started in his second term as prime minister. Eventually, the monarchy and the military agree to oust the leader. In this case, the military first sought permission from

2567-651: A princess of Isanavarman I , and two mandalas then became an ally. After Chenla sieged Funan and moved the center to Angkor , both Siamese Mon and the Angkorian eventually marched the troops to attack Vijaya of Champa in 1201 during the reign of Jayavarman VII , as recorded in the Cho-Dinh inscription (C.3). After the decline of the Khmer Empire and Kingdom of Pagan in the early 13th century, various states thrived in their place. The domains of Tai people existed from

2718-497: A privy council, and abolished slavery and the corvée system. The Front Palace crisis of 1874 stalled attempts at further reforms. In the 1870s and 1880s, he incorporated the protectorates up north into the kingdom proper, which later expanded to the protectorates in the northeast and the south. He established twelve krom in 1888, which were equivalent to present-day ministries. The crisis of 1893 erupted, caused by French demands for Laotian territory east of Mekong. Thailand

2869-537: A range of Global Climate Model (GCM) scenarios through climate change. Waterborne and water-related infectious diseases, already accounting for the majority of epidemic emergencies in the area, are also expected to increase when higher temperatures and higher humidity are placed over on existing conditions and estimated upsurge in population, urbanization, deduction of water quality and other trends. Tropical Asia has an abundance of edible resources. The following section involves various edible resource plants. Bananas are

3020-479: A result of climate change. Densely settled and intensively used low-level coastal plains, deltas, and islands are particularly susceptible to coastal erosion and land loss, sea flooding and barrage, especially vulnerable to coastal erosion and land loss, inundation and sea flooding, upstream movement of the saline/freshwater front and seawater incursion into freshwater lenses. Mainly at risk are large delta regions of Bangladesh , Myanmar , Vietnam and Thailand , and

3171-543: A result, the vast majority of models used in the current round of IPCC reports do not use them. The model improvements that now make flux corrections unnecessary include improved ocean physics, improved resolution in both atmosphere and ocean, and more physically consistent coupling between atmosphere and ocean submodels. Improved models now maintain stable, multi-century simulations of surface climate that are considered to be of sufficient quality to allow their use for climate projections. Moist convection releases latent heat and

SECTION 20

#1732898501505

3322-522: A result. Bangkok also waged several wars with Vietnam , where Siam successfully regained hegemony over Cambodia. From the late-19th century, Siam tried to rule the ethnic groups in the realm as colonies. In the reign of Mongkut (1851–1868), who recognised the potential threat Western powers posed to Siam, his court contacted the British government directly to defuse tensions. A British mission led by Sir John Bowring , Governor of Hong Kong , led to

3473-411: A scenario where global emissions start to decrease by 2010 and then declined at a sustained rate of 3% per year, the likely global average temperature increase was predicted to be 1.7 °C above pre-industrial levels by 2050, rising to around 2 °C by 2100. In a projection designed to simulate a future where no efforts are made to reduce global emissions, the likely rise in global average temperature

3624-423: A specific time period. As an example, pressure at any height can be diagnosed by applying the hydrostatic equation to the predicted surface pressure and the predicted values of temperature between the surface and the height of interest. Pressure is used to compute the pressure gradient force in the time-dependent equation for the winds. OGCMs model the ocean (with fluxes from the atmosphere imposed) and may contain

3775-716: Is +3.0 °C (5.4 °F) and the range is +1.3 to +4.5 °C (+2.3 to 8.1 °F). The IPCC's Fifth Assessment Report asserted "very high confidence that models reproduce the general features of the global-scale annual mean surface temperature increase over the historical period". However, the report also observed that the rate of warming over the period 1998–2012 was lower than that predicted by 111 out of 114 Coupled Model Intercomparison Project climate models. The global climate models used for climate projections are similar in structure to (and often share computer code with) numerical models for weather prediction , but are nonetheless logically distinct. Most weather forecasting

3926-494: Is a middle power in global affairs and a founding member of ASEAN . It has the second-largest economy in Southeast Asia and the 23rd-largest in the world by PPP , and it ranks 91st by nominal GDP per capita. Thailand is classified as a newly industrialised economy , with manufacturing, agriculture, and tourism as leading sectors. Thailand was known by outsiders prior to 1939 as Siam . According to George Cœdès ,

4077-418: Is a chief importer. Four of the main cultivators of this plant are capsicum annuum : cayenne pepper , sweet pepper , paprika , and jalapenos grown in temperate regions. Native to India, cardamom is the most valuable spice. Cashews , originally from tropical America , are a rich nut full of vitamins. Further on, cocoa/chocolate as well as the soft drink cola , is native to lowland tropical America, but

4228-528: Is a potentially prosperous food. Nutmeg comes from the trees of an island in Maluku . Mace is formed of nutmeg, and is used as spice. The peanut, native to South America , is commercially spread in tropical , subtropical , and temperate regions—it is used as a chief source of oils and protein. Another important tropical and subtropical plant is pineapple , likely domestic by the Guarani of Brazil and Paraguay during

4379-427: Is confined through the west African tropics. Citrus fruits are of the most valued fruits in tropical Asia. More than 55 million tons are sold annually, including oranges , lemons , limes , grapefruits , tangerines , and more. The largest citrus is the pummelo . The scented flower buds of cloves come from a tropical evergreen tree native to Zanzibar , Madagascar , and Indonesia. Coconuts are originally native to

4530-568: Is deduced from surface and lowest-model-layer temperatures. Other software is used for creating plots and animations. Coupled AOGCMs use transient climate simulations to project/predict climate changes under various scenarios. These can be idealised scenarios (most commonly, CO 2 emissions increasing at 1%/yr) or based on recent history (usually the "IS92a" or more recently the SRES scenarios). Which scenarios are most realistic remains uncertain. The 2001 IPCC Third Assessment Report Figure 9.3 shows

4681-642: Is done on the basis of interpreting numerical model results. Since forecasts are typically a few days or a week and sea surface temperatures change relatively slowly, such models do not usually contain an ocean model but rely on imposed SSTs. They also require accurate initial conditions to begin the forecast – typically these are taken from the output of a previous forecast, blended with observations. Weather predictions are required at higher temporal resolutions than climate projections, often sub-hourly compared to monthly or yearly averages for climate. However, because weather forecasts only cover around 10 days

Tropical Asia - Misplaced Pages Continue

4832-549: Is evidence of continuous human habitation in present-day Thailand from 20,000 years ago to the present day. The earliest evidence of rice growing is dated at 2,000 BCE. Areas comprising what is now Thailand participated in the Maritime Jade Road , as ascertained by archeological research. The trading network existed for 3,000 years, between 2000 BCE to 1000 CE. Bronze appeared c.  1,250 –1,000 BCE. The site of Ban Chiang in northeast Thailand currently ranks as

4983-481: Is founded on blood and flesh'. The former name Siam may have originated from Sanskrit श्याम ( śyāma , 'dark') or Mon ရာမည ( rhmañña , 'stranger'), probably the same root as Shan and Assam . The word Śyâma is possibly not the true origin, but a pre-designed deviation from its proper, original meaning. Another theory is the name derives from the Chinese calling this region 'Xian'. The ancient Khmers used

5134-529: Is grown throughout the tropics and used as a table fruit, drink, preserves, and medicinal properties. Vanilla is indigenous to tropical America, it is most commercially important of all the 35,000 species of orchid . It is made from the dried seeds of the rainforest orchid tree. It is widely grown, especially in Madagascar. Many native animals have developed adaptations that help them aerially navigate through their tropical habitats. Some vertebrates have developed

5285-513: Is important to the Earth's energy budget. Convection occurs on too small a scale to be resolved by climate models, and hence it must be handled via parameters. This has been done since the 1950s. Akio Arakawa did much of the early work, and variants of his scheme are still used, although a variety of different schemes are now in use. Clouds are also typically handled with a parameter, for a similar lack of scale. Limited understanding of clouds has limited

5436-515: Is the only Southeast Asian state never to have been colonised by a Western power, in part because Britain and France agreed in 1896 to make the Chao Phraya valley a buffer state . Not until the 20th century could Siam renegotiate every unequal treaty dating from the Bowring Treaty, including extraterritoriality . The advent of the monthon system marked the creation of the modern Thai nation-state. In 1905, there were unsuccessful rebellions in

5587-450: Is to improve the models. In 2000, a comparison between measurements and dozens of GCM simulations of ENSO -driven tropical precipitation, water vapor, temperature, and outgoing longwave radiation found similarity between measurements and simulation of most factors. However the simulated change in precipitation was about one-fourth less than what was observed. Errors in simulated precipitation imply errors in other processes, such as errors in

5738-403: Is typically used for weather forecasting. Ocean resolutions tend to be higher, for example HadCM3 has 6 ocean grid points per atmospheric grid point in the horizontal. For a standard finite difference model, uniform gridlines converge towards the poles. This would lead to computational instabilities (see CFL condition ) and so the model variables must be filtered along lines of latitude close to

5889-728: The Cold War , Thailand became a major ally of the United States and played an anti-communist role in the region as a member of SEATO , which was disbanded in 1977. Apart from a brief period of parliamentary democracy in the mid-1970s and 1990s, Thailand has periodically alternated between democracy and military rule . Since the 2000s, the country has been in continual political conflict between supporters and opponents of twice-elected Prime Minister of Thailand Thaksin Shinawatra , which resulted in two coups (in 2006 and 2014 ), along with

6040-516: The Great Depression , sharply falling rice prices, and a significant reduction in public spending caused discontent among aristocrats. In 1933, a counter-revolutionary rebellion occurred which aimed to reinstate absolute monarchy, but failed. Prajadhipok's conflict with the government eventually led to abdication. The government selected Ananda Mahidol , who was studying in Switzerland, to be

6191-603: The Himalayas are crucial to the provision of water during the continental monsoon season in Asia. Augmented temperatures and seasonal variability could cause a backdrop of glaciers and increasing danger from glacial lake outburst floods. Then, a diminution of average flow of snow-fed rivers, mixed with an increase in peak flows and sediment yield, could have major effects on hydropower generation, urban water supply and agriculture. Supply of hydropower generation from snow-fed rivers can occur in

Tropical Asia - Misplaced Pages Continue

6342-485: The IPCC . AOGCMs internalise as many processes as possible. They have been used to provide predictions at a regional scale. While the simpler models are generally susceptible to analysis and their results are easier to understand, AOGCMs may be nearly as hard to analyse as the climate itself. The fluid equations for AGCMs are made discrete using either the finite difference method or the spectral method . For finite differences,

6493-468: The Indo-Pacific area and are around every tropical area except rain forests. They can be used for oil, fruit, and fibers . Coffee, probably native to North East Africa, is grown throughout the tropics. In addition, grown throughout the tropics is mango , native to India (valuable in many parts) and from Southeast Asia (includes root tubers used as spice and perfumes). Mung bean is also native to India,

6644-567: The Indochinese Peninsula . With a population of almost 66 million, it spans 513,115 square kilometres (198,115 sq mi). Thailand is bordered to the northwest by Myanmar , to the northeast and east by Laos , to the southeast by Cambodia , to the south by the Gulf of Thailand and Malaysia , and to the southwest by the Andaman Sea ; it also shares maritime borders with Vietnam to

6795-477: The Nguyễn lords for control of Cambodia starting around 1715. The last fifty years of the kingdom witnessed bloody succession crises, where there were purges of court officials and able generals for many consecutive reigns. In 1765, a combined 40,000-strong force of Burmese armies invaded it from the north and west. The Burmese under the new Alaungpaya dynasty quickly rose to become a new local power by 1759. After

6946-626: The Shan people , the Bru people , or the Brau people . However, mainland Southeast Asian sources from before the fourteenth century primarily used the word Syam as an ethnonym , referring to those who belonged to a separate cultural category different from the Khmer, Cham, Bagan, or Mon. This contrasts with the Chinese sources, where Xian was used as a toponym . Theoretically, Tai-Kadai -speaking people formed as early as

7097-523: The Simhanavati legend given in several chronicles, the first Tai city-state in northern Thailand, Singhanavati , was found around the 7th century; however, several modern geology and archaeology studies found that its center, Yonok Nahaphan, dates from 691 BCE–545 CE, coinciding roughly with the establishment of Shan States , another Tai's federated principalities in the present-day northeast Myanmar . as well as Muang Sua ( Luang Prabang ) in

7248-632: The Thai highlands , with the highest point being Doi Inthanon in the Thanon Thong Chai Range at 2,565 metres (8,415 ft) above sea level. The northeast, Isan , consists of the Khorat Plateau , bordered to the east by the Mekong River . The centre of the country is dominated by the predominantly flat Chao Phraya river valley, which runs into the Gulf of Thailand . Southern Thailand consists of

7399-588: The Thammasat University massacre in October 1976. A coup d'état on that day brought Thailand a new ultra-right government, which cracked down on media outlets, officials, and intellectuals, and fuelled the communist insurgency . Another coup the following year installed a more moderate government, which offered amnesty to communist fighters in 1978. Fuelled by Indochina refugee crisis , Vietnamese border raids and economic hardships, Prem Tinsulanonda became

7550-555: The carbon cycle , so as to better model feedback effects. Such integrated multi-system models are sometimes referred to as either "earth system models" or "global climate models." Versions designed for decade to century time scale climate applications were originally created by Syukuro Manabe and Kirk Bryan at the Geophysical Fluid Dynamics Laboratory (GFDL) in Princeton, New Jersey . These models are based on

7701-402: The carbon cycle , so as to better model feedbacks. Most recent simulations show "plausible" agreement with the measured temperature anomalies over the past 150 years, when driven by observed changes in greenhouse gases and aerosols. Agreement improves by including both natural and anthropogenic forcings. Imperfect models may nevertheless produce useful results. GCMs are capable of reproducing

SECTION 50

#1732898501505

7852-434: The surface temperature record , as well as a more rapid increase in temperature at higher altitudes. Three (or more properly, four since time is also considered) dimensional GCM's discretise the equations for fluid motion and energy transfer and integrate these over time. They also contain parametrisations for processes such as convection that occur on scales too small to be resolved directly. Atmospheric GCMs (AGCMs) model

8003-677: The troposphere . It became the first successful climate model. Following Phillips's work, several groups began working to create GCMs. The first to combine both oceanic and atmospheric processes was developed in the late 1960s at the NOAA Geophysical Fluid Dynamics Laboratory . By the early 1980s, the United States' National Center for Atmospheric Research had developed the Community Atmosphere Model; this model has been continuously refined. In 1996, efforts began to model soil and vegetation types. Later

8154-583: The 12th century BCE in the middle of the Yangtze basin . Some groups later migrated south to Guangxi . However, after several bloody centuries against Chinese influence in Guangxi from the 333 BCE-11th centuries, hundreds of thousands of Tais were killed, thus, Tai people began to move southwestward along the rivers and over the lower passes into the mountain north of Southeast Asia and river valleys in present-day Assam of India . Some evidence indicates that

8305-919: The 17th century by the French, Dutch, and English. Rivalry for supremacy over Chiang Mai and the Mon people pitted Ayutthaya against the Burmese Kingdom. Several wars with its ruling Taungoo dynasty starting in the 1540s in the reign of Tabinshwehti and Bayinnaung were ultimately ended with the capture of the capital in 1570 . Then was a brief period of vassalage to Burma until Naresuan proclaimed independence in 1584. Ayutthaya then sought to improve relations with European powers for many successive reigns. The kingdom especially prospered during cosmopolitan Narai 's reign (1656–1688) when some European travelers regarded Ayutthaya as an Asian great power, alongside China and India. However, growing French influence later in his reign

8456-566: The 1868–1910 reign of Chulalongkorn (Rama V). In World War I , Siam sided with the Allies , a political decision made in order to amend the unequal treaties. Following a bloodless revolution in 1932, it became a constitutional monarchy and changed its official name to Thailand, becoming an ally of Japan in World War II . In the late 1950s, a military coup under Sarit Thanarat revived the monarchy's historically influential role in politics. During

8607-724: The 20th century and created a system of social hierarchy called sakdina , where male commoners were conscripted as corvée labourers for six months a year. Ayutthaya was interested in the Malay Peninsula , but failed to conquer the Malacca Sultanate which was supported by the Chinese Ming dynasty . European contact and trade started in the early-16th century, with the envoy of Portuguese duke Afonso de Albuquerque in 1511. Portugal became an ally and ceded some soldiers to King Rama Thibodi II. The Portuguese were followed in

8758-603: The 8th–10th centuries. This is also reflected in the language since over half of the vocabulary in the central Thai language is derived from or borrowed from the Mon language as well as Pali and Sanskrit . Moreover, the Jinakalamali chronicle of Tai's Lan Na also called the southern region occupied by the Mon Haripuñjaya of Dvaravati as Shyam Pradesh ( lit.   ' the land of Siam people ' ), which indicates that

8909-557: The 9th century. Tambralinga , a Malay state controlling trade through the Malacca Strait , rose in the 10th century. The Indochina peninsula was heavily influenced by the culture and religions of India from the time of the Kingdom of Funan to that of the Khmer Empire. The Thai people are of the Tai ethnic group , characterized by common linguistic roots. Chinese chronicles first mention

9060-555: The First World War on the side of the Allies . In the aftermath, Siam had a seat at the Paris Peace Conference and gained freedom of taxation and the revocation of extraterritoriality. A bloodless revolution took place in 1932, in which Prajadhipok was forced to grant the country's first constitution, thereby ending centuries of feudal and absolute monarchy . The combined results of economic hardships brought on by

9211-510: The Khmer. He later crowned himself the first king of Sukhothai Kingdom in 1238. Mainstream Thai historians count Sukhothai as the first kingdom of Thai people. Sukhothai expanded furthest during the reign of Ram Khamhaeng ( r.  1279–1298 ). However, it was mostly a network of local lords who swore fealty to Sukhothai, not directly controlled by it. He is believed have invented Thai script and Thai ceramics were an important export in his era. Sukhothai embraced Theravada Buddhism in

SECTION 60

#1732898501505

9362-590: The Pre-Columbian Era. Continuing on, Sesame is an early African oil seed plant—grown primarily in Southeast Asia . Squash is native to many American tropics and is cultivated tropical and subtropical America and temperate zones. Native to Southeast Asia and cultivated in India, turmeric is dried, ground rhizomes, and produce the spice. Then of the legume family, tamarind , is thought to be originally from India. It

9513-569: The Prime Minister from 1980 to 1988. The communists abandoned the insurgency by 1983. Prem's premiership was dubbed " semi-democracy " because the Parliament was composed of all elected House and all appointed Senate. The 1980s also saw increasing intervention in politics by the monarch, who rendered two coups in 1981 and 1985 attempts against Prem failed. In 1988 Thailand had its first elected prime minister since 1976. Suchinda Kraprayoon , who

9664-558: The Sanskrit आज्ञा , ājñā , of the same meaning), and -chak (from Sanskrit चक्र cakra- 'wheel', a symbol of power and rule). The Thai National Anthem ( Thai : เพลงชาติ ), written by Luang Saranupraphan during the patriotic 1930s, refers to the Thai nation as prathet Thai ( Thai : ประเทศไทย ). The first line of the national anthem is: prathet thai ruam lueat nuea chat chuea thai ( Thai : ประเทศไทยรวมเลือดเนื้อชาติเชื้อไทย ), 'Thailand

9815-498: The Tai peoples in the 6th century BCE. While there are many assumptions regarding the origin of Tai peoples, David K. Wyatt , a historian of Thailand, argued that their ancestors who at present inhabit Laos, Thailand, Myanmar, India, and China came from the Điện Biên Phủ area between the 5th and the 8th century. Thai people began migrating into present-day Thailand gradually from the 6th to 11th century, which Mon and Khmer people occupied at

9966-481: The Takéo inscriptions (K.79) written in 682 during the reign of Bhavavarman II of Chenla also mention Siam Nobel: Sāraṇnoya Poña Sayam, which was transcribed into English as: the rice field that was given to the poña (noble rank) who was called Sayam (Siam) . The Song Huiyao Jigao (960–1279) indicate Siamese people settled in the west central Thailand and their state was called Xiān guó ( Chinese : 暹國 ), while

10117-477: The United States and the United Kingdom. The United Kingdom, whose colony Malaya was under immediate threat from Thai forces, responded in kind, but the United States refused to declare war and ignored Thailand's declaration. The Free Thai Movement was launched both in Thailand and abroad to oppose the government and Japanese occupation. After the war ended in 1945, Thailand signed formal agreements to end

10268-452: The ability to glide through the air. Some fish jump out of the water to escape predators, expand their large pectoral fins and glide nearly hundreds of yards. As well, many frogs have long-webbed, elongate fingers and toes that function like parachutes when they leap from the leaves and branches of trees to glide across the forest. Several groups of mammals, for example colugos , and rodents have developed many different ways to move through

10419-484: The addition of submodels such as a sea ice model or a model for evapotranspiration over land, AOGCMs become the basis for a full climate model. General Circulation Models (GCMs) discretise the equations for fluid motion and energy transfer and integrate these over time. Unlike simpler models, GCMs divide the atmosphere and/or oceans into grids of discrete "cells", which represent computational units. Unlike simpler models which make mixing assumptions, processes internal to

10570-661: The air. In Southeast Asia, the ability to glide in modern, non-avian reptiles has arisen at least three, maybe four times for lizards, and once in snakes. In Southeast Asia, the gliding lizards within Agamidae are arboreal, diurnal, and prominent predators who signal another by puffing out their throats and expanding their chests to show their radiant colour patterns. Also, they can jump from branch to branch for prey or to escape predation. When threatened, Green Crested Lizards leap from one tree to next, splay out their limbs, and expand their rib cages during flight. Open surfaces are often

10721-417: The ancestors of Tai people migrated en masse southwestwards out of Yunnan only after the 1253 Mongol invasion of Dali , but not generally accepted. Tais defeated indigenous tribes and emerged as the new power in the new region, several Tai city-states were established, scattered from Điện Biên Phủ in present-day northwestern Vietnam and highland Southeast Asia to northeastern India . According to

10872-460: The ancient Patani area, Ubon Ratchathani, and Phrae in opposition to an attempt to blunt the power of local lords. The Palace Revolt of 1912 was a failed attempt by Western-educated military officers to overthrow the Siamese monarchy. Vajiravudh ( r.  1910–1925 ) responded by propaganda for the entirety of his reign, which promoted the idea of the Thai nation . In 1917, Siam joined

11023-500: The ancient Siamese and the Mon people in central Thailand were probably the same ethnolinguistic group. The earliest evidence to mention the Siam people are stone inscriptions found in Angkor Borei of Funan (K.557 and K.600), dated 661 CE, the slave's name is mentioned as "Ku Sayam" meaning "Sayam female slaves" (Ku is a prefix used to refer to female slaves in the pre-Angkorian era), and

11174-457: The atmosphere (and typically contain a land-surface model as well) using imposed sea surface temperatures (SSTs). They may include atmospheric chemistry. AGCMs consist of a dynamical core which integrates the equations of fluid motion, typically for: A GCM contains prognostic equations that are a function of time (typically winds, temperature, moisture, and surface pressure) together with diagnostic equations that are evaluated from them for

11325-480: The atmosphere and impose sea surface temperatures as boundary conditions. Coupled atmosphere-ocean GCMs (AOGCMs, e.g. HadCM3 , EdGCM , GFDL CM2.X, ARPEGE-Climat ) combine the two models. Models range in complexity: Other submodels can be interlinked, such as land use , allowing researchers to predict the interaction between climate and ecosystems. The Climber-3 model uses a 2.5-dimensional statistical-dynamical model with 7.5° × 22.5° resolution and time step of 1/2

11476-545: The basis for computer programs used to simulate the Earth's atmosphere or oceans. Atmospheric and oceanic GCMs (AGCM and OGCM ) are key components along with sea ice and land-surface components. GCMs and global climate models are used for weather forecasting , understanding the climate , and forecasting climate change . Atmospheric GCMs (AGCMs) model the atmosphere and impose sea surface temperatures as boundary conditions. Coupled atmosphere-ocean GCMs (AOGCMs, e.g. HadCM3 , EdGCM , GFDL CM2.X , ARPEGE-Climat) combine

11627-549: The branch, the snakes take flight. They also enlarge their rib cage as a defense device to expose brightly colored markings on their scales. Thailand – in Asia  (dark grey & grey) – in ASEAN  (dark grey) Thailand , officially the Kingdom of Thailand and historically known as Siam (the official name until 1939), is a country in Southeast Asia on

11778-517: The city of Lord Krishna (Nakhon Pathom) in the early era of the Sukhothai Kingdom . The signature of King Mongkut (r. 1851–1868) reads SPPM ( Somdet Phra Poramenthra Maha ) Mongkut Rex Siamensium (Mongkut, King of the Siamese). This usage of the name in the country's first international treaty gave the name Siam official status, until 24 June 1939 when it was changed to Thailand . There

11929-698: The continuing effect of the region-wide changes is tentative because of varietal disparity; local disparity in emergent season, crop management, etc. (the lack of inclusion of possible diseases, pests, and microorganisms in crop model simulations); and the vulnerability of agricultural (especially low-income rural population) areas to periodic environmental hazards such as floods, droughts and cyclones. The occurrence and level of some vector-borne diseases have risen with global warming. Diseases such as malaria , schistosomiasis and dengue , which are significant causes of mortality and morbidity in tropical Asia, are very climate-sensitive and likely to spread into new regions on

12080-604: The country's 40 years of uninterrupted economic growth. Chuan Leekpai 's government took an IMF loan with unpopular provisions. The 2004 Indian Ocean earthquake and tsunami hit the country, mostly in the south, claiming around 5,400 lives in Phuket , Phang Nga , Ranong , Krabi , Trang , and Satun , with thousands still missing. The populist Thai Rak Thai party , led by prime minister Thaksin Shinawatra , governed from 2001 until 2006. His policies were successful in reducing rural poverty and initiated universal healthcare in

12231-564: The country. In May 2023, Thailand's reformist opposition, the progressive Move Forward Party (MFP) and the populist Pheu Thai Party , won the general election , meaning the royalist-military parties that supported Prime Minister Prayuth Chan-ocha lost power. On 22 August 2023, Srettha Thavisin of the populist Pheu Thai party, became Thailand's new prime minister, while the Pheu Thai party's billionaire figurehead Thaksin Shinawatra returned to Thailand after years in self-imposed exile. Thavisin

12382-401: The country. However, Thaksin was viewed as a corrupt populist who was destroying the middle class in order to favor himself and the rural poor. He also faced criticism over his response to a South Thailand insurgency which escalated starting from 2004. Additionally, his recommendations to the rural poor directly conflicted with King Bhumibol's recommendations, drawing the ire of royalists,

12533-614: The death of the Sukhothai king Ram Khamhaeng . According to the Wat Kud Tae inscription (K.1105), dated c. 7th century, during the period that the eastern Mon entity, Lavo , was strongly influenced by the Chenla , the Siamese Mon in the west also established a royal intermarriage with Chenla as Sri Chakatham, prince of Sambhuka (ศามภูกะ, in the present-day Ratchaburi province ), married to

12684-504: The earliest known centre of copper and bronze production in Southeast Asia. Iron appeared around 500 BCE. The Kingdom of Funan was the first and most powerful Southeast Asian kingdom at the time (2nd century BCE). The Mon people established the principalities of Dvaravati and Kingdom of Hariphunchai in the 6th century. The Khmer people established the Khmer empire , centred in Angkor , in

12835-607: The east. After Singhanavati was submerged below Chiang Saen Lake due to an earthquake in 545, the survivors then founded a new seat at Wieng–Prueksha  [ th ] , the kingdom lasted for another 93 years. In addition to Singhanavati , another northern principality probably related to the Tai people, Ngoenyang , was established as the successor of Singhanavati in 638 by Lavachakkaraj  [ th ] , also centered in Wieng–Prueksha  [ th ] (present-day Mae Sai District , Chiang Rai ). Its seat

12986-442: The eastern plain belonged to the Mon of Lavo ( Chinese : 羅渦國 ), who later fell under the Chenla and Khmer hegemony around the 7th–9th centuries. Those Mon political entities, which also included Haripuñjaya in the north and several city-states in the northeast , are collectively called Dvaravati . However, the states of Siamese Mon and Lavo were later merged via the royal intermarriage and became Ayutthaya Kingdom in

13137-520: The eleventh century with the mention of Syam slaves or prisoners of war in Champa epigraphy", and "in the twelfth century, the bas-reliefs of Angkor Wat " where "a group of warriors" are described as Syam , though Cham accounts do not indicate the origins of Syam or what ethnic group they belonged to. The origins and ethnicity of the Syam remain unclear, with some literature suggesting that Syam refers to

13288-450: The establishment of its current constitution , a nominally democratic government after the 2019 Thai general election , and large pro-democracy protests in 2020–2021 , which included unprecedented demands to reform the monarchy. Since 2019, it has been nominally a parliamentary constitutional monarchy ; in practice, however, structural advantages in the constitution have ensured the military's continued influence in politics. Thailand

13439-640: The establishment of the Tai people's independent state, Sukhothai Kingdom , in the upper Chao Phraya River valley in 1238. The earliest conflict between Tai people and the preexisting ethnics was recorded in the mid-4th century when the ruler of  Singhanavati , Pangkharat  [ th ] , forcibly lost the seat at Yonok to King Khom from Umongasela (present-day Fang ). He then fled to Vieng Si Tuang ( เวียงศรีทวง ; present-day Wiang Phang Kham, Mae Sai district ) but had to send tributes to Yonok annually until his son, Phrom , took back Yonok and expelled King Khom from Umongasela. Phrom also marched

13590-622: The etymon *k(ə)ri: 'human being'. Thais often refer to their country using the polite form prathet Thai ( Thai : ประเทศไทย ). They also use the more colloquial term mueang Thai ( Thai : เมืองไทย ) or simply Thai; the word mueang , archaically referring to a city-state , is commonly used to refer to a city or town as the centre of a region. Ratcha Anachak Thai ( Thai : ราชอาณาจักรไทย ) means 'kingdom of Thailand' or 'kingdom of Thai'. Etymologically, its components are: ratcha ( Sanskrit : राजन् , rājan , 'king, royal, realm'), ana- ( Pali āṇā 'authority, command, power', itself from

13741-453: The evaporation rate that provides moisture to create precipitation. The other possibility is that the satellite-based measurements are in error. Either indicates progress is required in order to monitor and predict such changes. The precise magnitude of future changes in climate is still uncertain; for the end of the 21st century (2071 to 2100), for SRES scenario A2, the change of global average SAT change from AOGCMs compared with 1961 to 1990

13892-406: The first monarch of the current Chakri dynasty . Throughout the era of Western imperialism in Asia , Siam remained the only state in the region to avoid colonization by foreign powers, although it was often forced to make territorial , trade, and legal concessions in unequal treaties. The Siamese system of government was centralised and transformed into a modern unitary absolute monarchy during

14043-421: The first time that the king had intervened in Thai politics directly since 1932. The aftermath of the event marked a short-lived parliamentary democracy, often called the "era when democracy blossomed" (ยุคประชาธิปไตยเบ่งบาน). Constant unrest and instability, as well as fear of a communist takeover after the fall of Saigon , made some ultra-right groups brand leftist students as communists. This culminated in

14194-459: The general features of the observed global temperature over the past century. A debate over how to reconcile climate model predictions that upper air (tropospheric) warming should be greater than observed surface warming, some of which appeared to show otherwise, was resolved in favour of the models, following data revisions. Cloud effects are a significant area of uncertainty in climate models. Clouds have competing effects on climate. They cool

14345-563: The global mean response of 19 different coupled models to an idealised experiment in which emissions increased at 1% per year. Figure 9.5 shows the response of a smaller number of models to more recent trends. For the 7 climate models shown there, the temperature change to 2100 varies from 2 to 4.5 °C with a median of about 3 °C. Future scenarios do not include unknown events – for example, volcanic eruptions or changes in solar forcing. These effects are believed to be small in comparison to greenhouse gas (GHG) forcing in

14496-430: The integration of a variety of fluid dynamical, chemical and sometimes biological equations. The acronym GCM originally stood for General Circulation Model . Recently, a second meaning came into use, namely Global Climate Model . While these do not refer to the same thing, General Circulation Models are typically the tools used for modelling climate , and hence the two terms are sometimes used interchangeably. However,

14647-512: The interactions of the atmosphere , oceans, land surface and ice . All climate models take account of incoming energy as short wave electromagnetic radiation , chiefly visible and short-wave (near) infrared , as well as outgoing energy as long wave (far) infrared electromagnetic radiation from the earth. Any imbalance results in a change in temperature . The most talked-about models of recent years relate temperature to emissions of greenhouse gases . These models project an upward trend in

14798-574: The junta agreed to schedule a general election in March . Prayut continued his premiership with the support of Palang Pracharath Party -coalition in the House and junta-appointed Senate, amid allegations of election fraud. The 2020–21 pro-democracy protests were triggered by increasing royal prerogative , democratic and economic regression from the Royal Thai Armed Forces supported by the monarchy in

14949-423: The king to oust Thaksin, the permission was denied. But then, the king rejected Thaksin's choice to lead the army, allowing a military leader to be put into power who wanted the coup.  Then, the army dissolved Thaksin's party with a coup d'état in 2006 and banned over a hundred of its executives from politics. After the coup, a military government was installed which lasted a year. Coming back to democracy

15100-423: The late 10 century, Tai people began to migrate further south to the present-day upper central Thailand . Around the 1100s period, several cities in this area, such as Songkwae, Sawankhalok, and Chakangrao, were ruled by the Tai people, and they eventually launched several battles against the pre-existing Mon of Lavo , who had been falling under Chenla and Khmer influences since the 7th century, thus bringing

15251-464: The latter of which ended with a violent military crackdown causing more than 70 civilian deaths. After the general election of 2011 , the populist Pheu Thai Party won a majority and Yingluck Shinawatra , Thaksin's younger sister, became prime minister. The People's Democratic Reform Committee organised another anti-Shinawatra protest after the ruling party proposed an amnesty bill which would benefit Thaksin. Yingluck dissolved parliament and

15402-434: The long term, but large volcanic eruptions, for example, can exert a substantial temporary cooling effect. Human GHG emissions are a model input, although it is possible to include an economic/technological submodel to provide these as well. Atmospheric GHG levels are usually supplied as an input, though it is possible to include a carbon cycle model that reflects vegetation and oceanic processes to calculate such levels. For

15553-459: The low-lying areas of Indonesia , Malaysia and the Philippines . Socio-economic effects may be noticeable to major cities and ports, tourist resorts, artisanal and commercial fishing and coastal agriculture, and infra-structure development. Global studies project that by 2100, up to 410 million people (59 per cent in tropical Asia) may be affected by a 1-metre rise in sea level. In tropical Asia,

15704-410: The magnitudes estimated for the region has been done in many studies. One instance is the influences on rice fields, wheat yield and sorghum yield imply that any increase in production associated with CO 2 fertilization will most likely be offset by reductions in yield from temperature or moisture changes. Even though climate impression may result huge changes in crop yields, storage, and distribution.,

15855-444: The margins of currently widespread areas as a result of climate change. Populations that are newly affected will initially experience higher fatality rates. According to one study specifically focused on climate influences on infectious disease in presently vulnerable regions, a growth in epidemic potential of 12-27 per cent for malaria and 31 to 47 per cent for dengue and a decrease of schistosomiasis of 11-17 per cent are expected under

16006-529: The mid-14th century, while the southwestern Isan principalities, centered in Phanom Rung and Phimai , later pledged allegiance to Siamese's Ayutthaya during the reign of Borommarachathirat II ( r. 1424–1448). The remaining principal city-states in Isan region became Lan Xang around 1353 after the twin cities of Muang Sua ( Luang Prabang ) and Vieng Chan Vieng Kham ( Vientiane ) became independent following

16157-496: The mid-20th century. Several genetic studies published in the 21st century suggest that the so-called Siamese people (central Thai) might have had Mon origins since their genetic profiles are more closely related to the Mon people in Myanmar than the Tais in southern China , and they probably later became Tais via cultural diffusion after the arriving of Tai people from the north around

16308-505: The models can also be run at higher vertical and horizontal resolutions than climate mode. Currently the ECMWF runs at 9 km (5.6 mi) resolution as opposed to the 100-to-200 km (62-to-124 mi) scale used by typical climate model runs. Often local models are run using global model results for boundary conditions, to achieve higher local resolution: for example, the Met Office runs

16459-517: The most famous members of Musa with 21 species and edible subspecies. Especially in the Mayan area, it is probably native to Southeast Asia and widely refined in the tropics. Black pepper is vine to the East Indies—made by drying the whole fruit (peppercorn); white pepper is made by first hulling the fruit, then grinding. The majority of production is in India and Indonesia; outside the region, America

16610-484: The narrow Kra Isthmus that widens into the Malay Peninsula . Global Climate Model A general circulation model ( GCM ) is a type of climate model . It employs a mathematical model of the general circulation of a planetary atmosphere or ocean. It uses the Navier–Stokes equations on a rotating sphere with thermodynamic terms for various energy sources ( radiation , latent heat ). These equations are

16761-435: The new king. Later that decade, the army wing of Khana Ratsadon came to dominate Siamese politics. Plaek Phibunsongkhram who became premier in 1938, started political oppression and took an openly anti-royalist stance. His government adopted nationalism and Westernisation , anti-Chinese and anti-French policies. In 1939, there was a decree changing the name of the country from "Siam" to "Thailand". In 1941, Thailand

16912-402: The next tree. The degree and speed of the glide depends on a couple of aspects: the height of the lizard on the tree and the surface area of the wing comparative to the weight of the body. The orange-haired gliding lizard has a thick neck and heavy body; it has small wings however, but despite its pace, it moves relatively fast. To pick up enough speed, it commonly needs to fold down its wing for

17063-482: The night, unlike the many arboreal agamids. In addition, their color patterns normally match the substrate where they stay allowing them to go ignored. The flat-tailed gecko ( Cosymbotus platyuurus ), a species strongly related to the frilly gecko, is another example of intermediacy. It similarly folds skin along the head, body, limbs, and tail as the Frilly Gecko but not nearly as developed. It lays these flaps out on

17214-457: The northeast of present-day India to the north of present-day Laos and to the Malay Peninsula . During the 13th century, Tai people had already settled in the core land of Dvaravati and Lavo Kingdom to Nakhon Si Thammarat in the south. There are, however, no records detailing the arrival of the Tais. Around 1240, Pho Khun Bang Klang Hao , a local Tai ruler, rallied the people to rebel against

17365-452: The place where Draco , (black bearded) gliding lizards communicate with each other. When not flying, their heads are usually seen sitting head up on the trunks of the trees; their wings creatively folded to their bodies. Most of their day is spent feeding on ants up and down trees, making for the majority of their diet. Once in a while, they will want to change outings and leap from the tree, extend their ribs to open their wings, and glide to

17516-467: The poles. Ocean models suffer from this problem too, unless a rotated grid is used in which the North Pole is shifted onto a nearby landmass. Spectral models do not suffer from this problem. Some experiments use geodesic grids and icosahedral grids, which (being more uniform) do not have pole-problems. Another approach to solving the grid spacing problem is to deform a Cartesian cube such that it covers

17667-510: The reign of Maha Thammaracha I (1347–1368). According to the most widely accepted version of its origin, the Ayutthaya Kingdom rose from the earlier, nearby Lavo Kingdom and Suvarnabhumi with Uthong as its first king. Ayutthaya was a patchwork of self-governing principalities and tributary provinces owing allegiance to the King of Ayutthaya under the mandala system . Its initial expansion

17818-610: The rural populace sought work in growing cities. Rural farmers gained class consciousness and were sympathetic to the Communist Party of Thailand . Economic development and education enabled the rise of a middle class in Bangkok and other cities. In October 1971, there was a large demonstration against the dictatorship of Thanom Kittikachorn (premiership 1963–1973), which led to civilian casualties. Bhumibol installed Sanya Dharmasakti (premiership 1973–1975) to replace him, marking

17969-433: The same area, the potential for opposition is likely. Geckos are another notable gliding reptile. Their wings lack the elaborate thoracic (chest) mutation of gliding lizards and are composed mainly of a large flap of skin along their flanks. The flaps stay rolled across the belly until the lizard leaps off a tree the time they become inertly opened by air during the fall. Additionally, the body flaps are extended flaps along

18120-530: The same year. He also quickly subdued the other warlords. His forces engaged in wars with Burma, Laos, and Cambodia, which successfully drove the Burmese out of Lan Na in 1775, captured Vientiane in 1778 and tried to install a pro-Thai king in Cambodia in the 1770s. In his final years there was a coup, caused supposedly by his "insanity", and eventually Taksin and his sons were executed by his longtime companion General Chao Phraya Chakri (the future Rama I). He

18271-529: The short term, though not in the long term—run off snow-fed rivers might change as well. As stated before, an increased amount economic, agriculture, and industrial resources, can affect climate, but it can put an extra stress on water. Lower level basins are expected to be most affected. Hydrological changes on island and drainage basins will be relatively low to tropical Asia, despite those related to sea rise. The sensitivity of major cereal and tree crops, changes in temperature, moisture and CO 2 concentration of

18422-401: The sides of the head, neck, and tail; back sides of the hind limbs; and extensive webbing on the hands and feet. In flight, all of their wings are extended and splayed, creating the parachute effect. The Frilly Gecko , the smallest of them, travel from trees uniquely on the lowest part of the same tree to avoid predators. Geckos are cryptic species that are hidden during the day and active during

18573-466: The signing of the Bowring Treaty , the first of many unequal treaties with Western countries. This, however, brought trade and economic development to Siam. The unexpected death of Mongkut from malaria led to the reign of underage King Chulalongkorn , with Somdet Chaophraya Sri Suriwongse (Chuang Bunnag) acting as regent. Chulalongkorn ( r.  1868–1910 ) initiated centralisation, set up

18724-454: The six SRES marker scenarios, IPCC (2007:7–8) gave a "best estimate" of global mean temperature increase (2090–2099 relative to the period 1980–1999) of 1.8 °C to 4.0 °C. Over the same time period, the "likely" range (greater than 66% probability, based on expert judgement) for these scenarios was for a global mean temperature increase of 1.1 to 6.4 °C. In 2008 a study made climate projections using several emission scenarios. In

18875-535: The southeast and Indonesia and India to the southwest. Bangkok is the state capital and largest city. Thai peoples migrated from southwestern China to mainland Southeast Asia from the 6th to 11th centuries. Indianised kingdoms such as the Mon , Khmer Empire , and Malay states ruled the region, competing with Thai states such as the Kingdoms of Ngoenyang , Sukhothai , Lan Na , and Ayutthaya , which also rivalled each other. European contact began in 1511 with

19026-512: The state of war with the Allies . In June 1946, young King Ananda was found dead under mysterious circumstances. His younger brother Bhumibol Adulyadej ascended to the throne. Thailand joined the Southeast Asia Treaty Organization (SEATO) to become an active ally of the United States in 1954. Field Marshal Sarit Thanarat launched a coup in 1957, which removed Khana Ratsadon from politics. His rule (premiership 1959–1963)

19177-405: The success of this strategy, but not due to some inherent shortcoming of the method. Most models include software to diagnose a wide range of variables for comparison with observations or study of atmospheric processes . An example is the 2-metre temperature, which is the standard height for near-surface observations of air temperature. This temperature is not directly predicted from the model but

19328-457: The surface by reflecting sunlight into space; they warm it by increasing the amount of infrared radiation transmitted from the atmosphere to the surface. In the 2001 IPCC report possible changes in cloud cover were highlighted as a major uncertainty in predicting climate. Climate researchers around the world use climate models to understand the climate system. Thousands of papers have been published about model-based studies. Part of this research

19479-505: The surface of a sphere. Some early versions of AOGCMs required an ad hoc process of " flux correction " to achieve a stable climate. This resulted from separately prepared ocean and atmospheric models that each used an implicit flux from the other component different than that component could produce. Such a model failed to match observations. However, if the fluxes were 'corrected', the factors that led to these unrealistic fluxes might be unrecognised, which could affect model sensitivity. As

19630-429: The term "global climate model" is ambiguous and may refer to an integrated framework that incorporates multiple components including a general circulation model, or may refer to the general class of climate models that use a variety of means to represent the climate mathematically. Atmospheric (AGCMs) and oceanic GCMs (OGCMs) can be coupled to form an atmosphere-ocean coupled general circulation model (CGCM or AOGCM). With

19781-551: The time. Thus Thai culture was influenced by Indian, Mon, and Khmer cultures. Tai people intermixed with various ethnic and cultural groups in the region, resulting in many groups of present-day Thai people. Genetic evidences suggested that ethnolinguistics could not accurately predict the origins of the Thais. Sujit Wongthes argued that Thai is not a race or ethnicity but a culture group. According to French historian George Cœdès , "The Thai first enter history of Farther India in

19932-434: The tree snakes (genus Chrysopelea ). The flat, open body works like a parasail and its rolling movements in flight, similar to a spinning frisbee, prevents it from overturning. Before leaping, tree snakes hang the uncoiled forepart of their body off the branch in a shape similar to that of the letter 'J'. Next, by shaking the body upward in tandem reaching outward by rapidly smoothing its coils and releasing, they will hold on

20083-422: The troops south to occupy Chakangrao from the enemy as well as founding the city of Songkwae . Some historians suggest that Lavo 's capital, Lopburi , was once seized by Phrom . In contrast, Tai people instead established relationships with Siamese Mon via royal intermarriages . As is generally known, the present-day Thai people were previously called Siamese before the country was renamed Thailand in

20234-471: The tropics to help resolve processes believed to be important for the El Niño Southern Oscillation (ENSO). Spectral models generally use a Gaussian grid , because of the mathematics of transformation between spectral and grid-point space. Typical AGCM resolutions are between 1 and 5 degrees in latitude or longitude: HadCM3, for example, uses 3.75 in longitude and 2.5 degrees in latitude, giving

20385-642: The trunk of the tree to prevent the curving of the body from a shadow where it meets the trunk, to give away its location. These flaps inertly open up like other geckos do when the gecko jumps from one branch to another and this imparts even a small advantage by extending the length of the jump. Because of their lack of limbs, snakes are a group of vertebrates in which the ability to glide might be viewed as less likely to develop. However, in Peninsular Malaysia, there are three closely related species of snakes with ability to glide for significant distances. These are

20536-526: The two models. The first general circulation climate model that combined both oceanic and atmospheric processes was developed in the late 1960s at the NOAA Geophysical Fluid Dynamics Laboratory AOGCMs represent the pinnacle of complexity in climate models and internalise as many processes as possible. However, they are still under development and uncertainties remain. They may be coupled to models of other processes, such as

20687-408: The wake of the coup d'état in 2014 , dissolution of the pro-democracy Future Forward Party , distrust in the 2019 general election and the current political system, forced disappearance and deaths of political activists including Wanchalearm Satsaksit , and political corruption scandals, which brought forward unprecedented demands to reform the monarchy and the highest sense of republicanism in

20838-481: The word Siam to refer to people settled in the west Chao Phraya River valley surrounding the ancient city of Nakhon Pathom in the present-day central Thailand ; it may probably originate from the name of Lord Krishna , which also called Shyam , as in the Wat Sri Chum Inscription , dated 13th century CE, mentions Phra Maha Thera Sri Sattha  [ th ] came to restore Phra Pathommachedi at

20989-445: The word Thai ( ไทย ) means 'free man' in the Thai language, "differentiating the Thai from the natives encompassed in Thai society as serfs". According to Chit Phumisak , Thai ( ไท ) simply means 'people' or 'human being'; his investigation shows that some rural areas used the word "Thai" instead of the usual Thai word khon ( คน ) for people. According to Michel Ferlus , the ethnonyms Thai-Tai (or Thay-Tay) would have evolved from

21140-426: Was the coup leader in 1991 and said he would not seek to become prime minister, was nominated as one by the majority coalition government after the 1992 general election . This caused a popular demonstration in Bangkok, which ended with a bloody military crackdown . Bhumibol intervened in the event and signed an amnesty law, Suchinda then resigned. The 1997 Asian financial crisis originated in Thailand and ended

21291-690: Was a process that took very active participation of the people. The people frequently stormed government buildings and the military threatened yet another coup. Finally, in 2007, a civilian government led by the Thaksin-allied People's Power Party (PPP) was elected . Another protest led by PAD ended with the dissolution of PPP, and the Democrat Party led a coalition government in its place. The pro-Thaksin United Front for Democracy Against Dictatorship (UDD) protested both in 2009 and in 2010 ,

21442-526: Was autocratic; he built his legitimacy around the god-like status of the monarch and by channelling the government's loyalty to the king. His government improved the country's infrastructure and education. After the United States joined the Vietnam War in 1961, there was a secret agreement wherein the U.S. promised to protect Thailand. The period brought about increasing modernisation and Westernisation of Thai society. Rapid urbanisation occurred when

21593-437: Was described by academics as showing the rise of fascism. Bhumibol, the longest-reigning Thai king, died in 2016, and his son Vajiralongkorn ascended to the throne. The referendum and adoption of Thailand's current constitution happened under the junta's rule. The junta also bound future governments to a 20-year national strategy 'road map' it laid down, effectively locking the country into military-guided democracy . In 2019,

21744-607: Was in a brief conflict with Vichy France , resulting in Thailand gaining some Lao and Cambodian territories. On 8 December 1941, the Empire of Japan launched an invasion of Thailand , and fighting broke out shortly before Phibun ordered an armistice . Japan was granted free passage, and on 21 December Thailand and Japan signed a military alliance with a secret protocol, wherein the Japanese government agreed to help Thailand regain lost territories . The Thai government then declared war on

21895-410: Was later dismissed from his prime ministerial role on 14 August 2024 by the Constitutional Court for his "gross ethics violations." Totalling 513,120 square kilometres (198,120 sq mi), Thailand is the 50th-largest country by total area. Thailand comprises several distinct geographic regions, partly corresponding to the provincial groups. The north of the country is the mountainous area of

22046-550: Was met with nationalist sentiment and led eventually to the Siamese revolution of 1688 . However, overall relations remained stable, with French missionaries still active in preaching Christianity. After a bloody period of dynastic struggle, Ayutthaya entered into what has been called the Siamese " golden age ", a relatively peaceful episode in the second quarter of the 18th century when art , literature , and learning flourished. There were seldom foreign wars, apart from conflict with

22197-592: Was moved to Chiang Mai in 1262 by King Mangrai , which considered the foundation of the Lan Na kingdom. Mangrai unified the surrounding area and also created a network of states through political alliances to the east and north of the Mekong . His dynasty would rule the kingdom continuously for the next two centuries. Lan Na expanded its territory southward and annexed the Mon Hariphunchai of Dvaravati in 1292. In

22348-630: Was predicted to be 5.5 °C by 2100. A rise as high as 7 °C was thought possible, although less likely. Another no-reduction scenario resulted in a median warming over land (2090–99 relative to the period 1980–99) of 5.1 °C. Under the same emissions scenario but with a different model, the predicted median warming was 4.1 °C. AOGCMs internalise as many processes as are sufficiently understood. However, they are still under development and significant uncertainties remain. They may be coupled to models of other processes in Earth system models , such as

22499-489: Was the first king of the ruling Chakri dynasty and founder of the Rattanakosin Kingdom on 6 April 1782. Under Rama I (1782–1809), Rattanakosin successfully defended against Burmese attacks and put an end to Burmese incursions. He also created suzerainty over large portions of Laos and Cambodia. In 1821, Briton John Crawfurd was sent to negotiate a new trade agreement with Siam – the first sign of an issue which

22650-432: Was through conquest and political marriage. Before the end of the 15th century, Ayutthaya invaded the Khmer Empire three times and sacked its capital Angkor . Ayutthaya then became a regional power in place of the Khmer. Constant interference of Sukhothai effectively made it a vassal state of Ayutthaya and it was finally incorporated into the kingdom. Borommatrailokkanat brought about bureaucratic reforms which lasted into

22801-638: Was to dominate 19th century Siamese politics. Bangkok signed the Burney Treaty in 1826, after the British victory in the First Anglo-Burmese War . Anouvong of Vientiane, who mistakenly held the belief that Britain was about to launch an invasion of Bangkok, started the Lao rebellion in 1826 which was suppressed. Vientiane was destroyed and a large number of Lao people were relocated to Khorat Plateau as

#504495