1,507 articles
John Fillmore Hayford
John Fillmore Hayford (1868–1925) was an American civil engineer and geodesist who established isostasy as a working tool of geodesy and computed the Hayford spheroid, adopted internationally in 1924.
John Flett (Scottish geologist)
John Smith Flett (1869–1947) was a Scottish physician-turned-geologist who directed the Geological Survey of Great Britain from 1920 to 1935 and studied the Old Red Sandstone of Orkney.
John Frederick Dewey
John Frederick Dewey, born 1937 in London, is a British and American structural geologist known for applying plate tectonics to mountain belts, above all the Caledonian and Appalachian systems.
John G. Sclater
John G. Sclater (1940–2024) was a Scottish-born American marine geophysicist whose work on seafloor heat flow and subsidence gave plate tectonics a quantitative foundation; he died in San Diego at 84.
John George Sclater
John George Sclater (1940–2024) was a Scottish-born American marine geophysicist, educated at Cambridge and a professor at MIT, Texas, and Scripps, whose heat-flow studies gave plate tectonics a quantitative foundation.
John Graham Ramsay
John Graham Ramsay (1931–2021) was a British structural geologist, a Fellow of the Royal Society, who held professorships at Imperial College, Leeds, and ETH Zurich and wrote the influential Folding and Fracturing of Rocks (1967).
John H. Martin
John H. Martin (died 1993) was an oceanographer at Moss Landing Marine Laboratories who proposed the iron hypothesis, that iron scarcity limits phytoplankton growth in much of the ocean.
John H. Seinfeld
John H. Seinfeld, born 1942 in Elmira, New York, is an American chemical engineer at Caltech who founded mathematical modeling of air pollution and pioneered atmospheric aerosol chemistry.
John Henry Alexander
John Henry Alexander (1812–1867) was an American scientist and civil engineer from Annapolis, Maryland, who directed Maryland's first topographical and geological survey from the 1830s.
John Holdren
John Holdren is an American physicist and science policy scholar who served as President Obama's science advisor from 2009 to 2017, the longest-serving in that role.
John Horne
John Horne (1848–1928) was a Scottish geologist who, with collaborator Ben Peach, resolved the NW Highlands controversy by proving the Moine thrust, and rose to Assistant Director of the Geological Survey of Scotland.
John Houghton (Welsh atmospheric physicist)
Sir John Theodore Houghton was a Welsh atmospheric physicist who pioneered satellite measurement of the atmosphere, directed the UK Met Office, and co-chaired IPCC assessments.
John I. Hedges
John I. Hedges (1946–2002) was an American organic geochemist and chemical oceanographer at the University of Washington, known for lignin tracers of land plant carbon in the sea.
John Imbrie
John Imbrie (1925–2016) was an American paleoceanographer who founded quantitative study of past ocean climates, led CLIMAP and SPECMAP, and empirically demonstrated Milankovitch theory of the ice ages.
John M. Edmond
John M. Edmond (1943–2001) was a Scottish-born marine geochemist and MIT professor who helped discover deep-sea hydrothermal vents and established the first oceanic distributions of many trace elements.
John M. Eiler
John M. Eiler is an isotope geochemist at Caltech, known for pioneering clumped isotope thermometry and elected to the National Academy of Sciences in 2016.
John M. Wallace
John M. Wallace, known as Mike Wallace, is an American atmospheric scientist at the University of Washington who identified the Arctic Oscillation and El Niño's climate patterns.
John M. Zachara
John M. Zachara was an American environmental geochemist who spent his career, 1979 to 2016, at Pacific Northwest National Laboratory, studying metals, radionuclides, and contaminants at Hanford.
John Mason Clarke
John Mason Clarke (1857–1925) was an American paleontologist and geologist who directed the New York State survey and museum and became a leading authority on the Devonian system.
John Milne
John Milne (1850–1913) was a British geologist and mining engineer who became a founder of modern seismology in Tokyo, developing the standard horizontal pendulum seismograph.
John Murray (oceanographer)
Sir John Murray (1841–1914) was a Scottish Canadian oceanographer and marine geologist, a founder of modern oceanography who served on the Challenger Expedition and edited its 50-volume report.
John P. Burrows
John P. Burrows is a British atmospheric physicist, Fellow of the Royal Society, and professor at the University of Bremen who led the GOME and SCIAMACHY satellite instruments.
John P. Grotzinger
John P. Grotzinger is a field geologist and Harold Brown Professor of Geology at Caltech. He conducted research on geobiology and was chief scientist for NASA's Curiosity mission.
John Peter Lesley
John Peter Lesley (1819–1903) was an American geologist, a founding member of the National Academy of Sciences, and director of the Second Geological Survey of Pennsylvania.
John R. L. Allen
John R. L. Allen, also known as John Robert Lawrence Allen, was a British geologist who helped found quantitative, process-based sedimentology and spent his career at the University of Reading.
John Reager
John (J.T.) Reager is an American remote-sensing hydrologist at NASA's Jet Propulsion Laboratory who leads its Water and Ecosystems Group and won a 2019 Presidential Early Career Award.
John Reynolds (cosmochemist)
John Reynolds was an American cosmochemist and geophysicist at the University of California, Berkeley, remembered as the father of extinct radioactivities for his 1960 discovery of xenon-129 in meteorites.
John Rodgers (geologist)
John Rodgers (1914–2004) was an American geologist at Yale who became the leading authority on the Appalachian mountain belt, winning the Penrose Medal in 1981.
John Rodgers (scientist)
John Rodgers (1812–1882) was a US Navy rear admiral who commanded the North Pacific Exploring Expedition of 1853–1856 and was a charter member of the National Academy of Sciences.
John S. Steinhart
John S. Steinhart was an American geophysicist who worked at the Carnegie Institution of Washington and the University of Wisconsin–Madison, and is known for the Steinhart–Hart thermistor equation.