Arthur Thomas Doodson (31 March 1890 – 10 January 1968) was a British mathematician and oceanographer, who worked on tidal analysis at Liverpool Observatory and Tidal Institute from 1919-1960.
25-496: Not to be confused with W0 (disambiguation) (W followed by zero). [REDACTED] Look up wo in Wiktionary, the free dictionary. WO or Wo may refer to: Airlines [ edit ] World Airways (former IATA code: WO), a 1948–2014 US airline Swoop (airline) (former IATA code: WO), a former Canadian ultra low-cost airline Language [ edit ] Wo (kana) ,
50-502: A Japanese kana Wolof language (ISO 639-1 code "wo") Sport [ edit ] Walk-off (disambiguation) Walkover , awarded if there are no opposing players available People [ edit ] Zhang Wo , Chinese painter of the Yuan Dynasty Wo Weihan (1949–2008), an executed Chinese scientist and entrepreneur W. O. Bentley (1888–1971), British car designer Wo Ding , traditionally believed to be
75-571: A job of semi-research nature in the Testing and Standardizing Department of the Corporation of Manchester. In 1916, he was appointed to a post in statistics at University College London , under Karl Pearson . There he first used desk calculating machines and solved a problem on the relationship between the mode, median and the mean. However, during WW I Pearson soon had to change his work from statistics to ballistics and Doodson had to work on
100-1028: A king of the Shang Dynasty Wo Jia , a king of the Shang Dynasty Other uses [ edit ] Warrant officer , a military rank Wine of Origin , a designated area for South African wine production Wo' or Uo, a month of the Haab' in the Mayan calendar Wo, a chimpanzee deity of the Yaoundé people of the Cameroons; son of Zamba Wo Fat (disambiguation) , several fictional characters See also [ edit ] W0 (disambiguation) WOA (disambiguation) Woah (disambiguation) Woe (disambiguation) Woh , an Indian TV series Woo (disambiguation) Wu (disambiguation) VVO (disambiguation) OW (disambiguation) Topics referred to by
125-526: A teacher and started as meter tester before he obtained his M.Sc.degree at the University of Liverpool , advised by Joseph Proudman . He briefly worked under Karl Pearson first in statistics, then in ballistics calculating shell trajectories until the end of WWI. Joining the newly founded Tidal Institute in Liverpool in 1919 he produced tide tables , and was involved in designing tide-predicting machines . He
150-556: Is different from Wikidata All article disambiguation pages All disambiguation pages W0 (disambiguation) (Redirected from W0 (disambiguation) ) W0 may refer to: Nominal day, ignoring the variation followed via the Equation of Time, a variable in the equations of Arthur Thomas Doodson A variable for a word in the PICAXE microcontroller Short Run Consumption Function,
175-462: The University of Liverpool , Teachers’ Training College to become a physics and math teacher. He became profoundly deaf at that time, but graduated with a B.Sc. in both chemistry (1911) and mathematics (1912). He found it difficult to get a job because of his disability, and started with electrical engineering Ferranti in Manchester as a meter tester. At the same time he enrolled in mathematics at
200-508: The Observatory. The same year he wrote a paper on earth tides based on seismographic measurements in the Observatory showing a tilt of the earth in during tides. Among other works, Doodson was co-author, with H.D. Warburg of the 1941 "Admiralty Manual of Tides", a textbook of 29 chapters As the Allies prepared the invasion of Nazi-occupied France, they wanted to land at first light when it
225-560: The Philosophical Transactions, the Royal Society's Proceedings, and elsewhere. Has personally greatly improved the resolution of the astronomical disturbing forces into their more important harmonic constituents. Has carried out the reduction of tidal observations of Antarctic expeditions. Made important contributions to Ballistics during the war, embodying great improvements in calculation, which have since been incorporated in
250-771: The Secretary of the International Association of Physical Oceanography (now the International Association for the Physical Sciences of the Oceans ), which collected monthly and annual mean values of sea-levels from all countries. In 1957, he attended a conference by the International Hydrographic Bureau and became involved in the financing and production of bathymetric charts . Doodson
275-638: The University of Liverpool. Joseph Proudman was his advisor and gave him the task of diffraction computations evaluating the sums of series of functions related to Bessel functions of half integral order. He created tables of what he called the Riccati-Bessel functions of the sines and cosines and in 1914, he obtained his M.Sc. degree with the tables published by the British Association Committee for Mathematical Tables. From 1914-1916 he had
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#1732845546780300-535: The calculation of shell trajectories , which he resented as conscientious objector . To calculate the effect of wind on the trajectory of a shot, he modified a method by Ralph Fowler , Herbert William Richmond and Douglas Rayner Hartree , which was later included in the Textbook of AA (anti-aircraft) Gunnery. He became the head of the computing staff and stayed until 1919, when he obtained his D.Sc.. In 1919, he moved back to Liverpool to work on tidal analysis at
325-674: The design of tide-predicting machines , of which a widely used example was the "Doodson-Légé TPM". Portugal and Japan ordered a machine in 1923, Brazil in 1927, made by Kelvin, Bottomley & Baird. Only in 1929 the Tidal Institute bought a 1906 A Légé &Co for itself. In 1929, Doodson became the Associate Director of Liverpool Observatory and Tidal Institute and lived in the Observatory house. In 1933, he built an electronic tide gauge in Birkenhead transmitting over 2 miles into
350-453: The effects of wind and atmospheric pressure on tides. In 1928, he published a paper on tide analysis and a paper on tidal currents from observations in slack water . Doodson devised a practical system for specifying the different harmonic components of the tide-generating potential, the Doodson numbers . He developed the analysis of tidal motions mainly in the oceans, but also in lakes, and
375-600: The initial endowed wealth level of a particular individual in the Life-cycle Income Hypothesis First step of the W0–W6 scale for the classification of meteorites by weathering W 0 may refer to the principal branch of the Lambert W Function See also [ edit ] 0W (disambiguation) [REDACTED] Topics referred to by the same term This disambiguation page lists articles associated with
400-528: The newly founded Tidal Institute, which Proudman had persuaded Charles Booth of Liverpool , and Sir Alfred Booth to sponsor. It was housed in the University Physics Building. With a grant, they could hire an assistant computer, a member of Doodson’s staff in London, and buy a desk calculator. He analyzed observations of tides at Newlyn . In 1921, Doodson published a major work on tidal analysis. This
425-534: The roof in tin helmets and trench coats and carrying buckets of water in case an incendiary bomb hit the observatory". In 1945 Doodson became the Director of the Observatory until his retirement in 1960. His work became increasingly international. Starting in 1948 he became involved in work for International Union of Geodesy and Geophysics . In 1954, he was made Chairman of the Finance committee. In 1948, he also became
450-401: The same term [REDACTED] This disambiguation page lists articles associated with the title WO . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=WO&oldid=1209894699 " Category : Disambiguation pages Hidden categories: Short description
475-543: The same title formed as a letter–number combination. If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=W0&oldid=1238770598 " Category : Letter–number combination disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Arthur Thomas Doodson Profoundly deaf, he could not become
500-446: Was low tide , so hidden obstacles could be seen. Doodson was enlisted to work out the tidal patterns using his mechanised calculators. His calculations revealed that 5–7 June, 1944 would provide the best combination of full moon and ideal tidal conditions and D-Day duly took place on 6 June 1944. By 1943, the staff at Liverpool Tidal Institute had been reduced from 15 to Doodson and six young women. They also did "nighttime fire watch on
525-696: Was buried at Flaybrick Hill Cemetery . Further biographical information is available from the National Oceanography Centre , whose Liverpool facility was formerly the Liverpool Observatory and Tidal Institute, part of the UK Natural Environment Research Council , of which Doodson became director. Distinguished for his work on tidal theory and on the interpretation of tidal observations, published partly in conjunction with J Proudman, and partly independently, in
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#1732845546780550-634: Was elected a Fellow of the Royal Society . During WWII he calculated the best combination of full moon and ideal tidal conditions for D-Day on 6 June 1944. He was involved in work for the International Union of Geodesy and Geophysics . Arthur Thomas Doodson was born in 1890 at Boothstown , Salford , Greater Manchester the son of Methodist parents cotton-mill manager Thomas Doodson and Eleanor Pendlebury of Radcliffe, Lancashire . He attended evening classes in mathematics from 1901-1903 to be able to attend Rochdale secondary school. In 1908 he entered
575-490: Was part of a breakaway sect of the Plymouth Brethren and conscientious objector . He married twice. In 1919, he married Margaret, daughter of J. W. Galloway, a tramways engineer of Halifax. They had a daughter who later died in 1936, and a son in 1931, but Margret died shortly after giving birth. In 1933, he married Elsie May, daughter of W. A. Carey, who survived him. Doodson died at Birkenhead on 10 January 1968 and
600-445: Was the first development of the tide-generating force to be carried out in harmonic form: Doodson distinguished 388 tidal frequencies. Doodson's analysis of 1921 was based on the then-latest lunar theory of Ernest William Brown . In 1923, he produced a first tide table with predictions for 1924, which was used in Liverpool port. He also started to calculate the direction of cotidal lines and created charts. In 1924, he studied
625-528: Was the first to devise methods for shallow water as in estuaries . The thorough analysis at which he excelled became the international standard for the study of tides and the production of tables through the method of determination of Harmonic Elements by Least-Squares Fitting to data observed at each place of interest. That is, by proper association of the astronomical phases, observations made at one time can enable predictions decades away with different astronomical phases. Doodson used and became involved in
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