American meteorologists

Douglas Seymour Mackiernan (April 25, 1913 – April 29, 1950) was the first officer of the Central Intelligence Agency (CIA) to be killed in the line of duty.

Vernon Francis Dvorak (November 15, 1928 – September 19, 2022) was an American meteorologist. He studied meteorology at the University of California, Los Angeles and wrote his Master thesis An investigation of the inversion-cloud regime over the subtropical waters west of California in 1966. In 1973 he developed the Dvorak technique to analyze tropical cyclones from satellite imagery. He worked with the National Environmental Satellite, Data, and Information Service. He lived in Ojai, California, until his death on September 19, 2022.

Captain George Francis Kosco (1 April 1908 – 11 June 1985) was a United States Navy aerologist and polar explorer.
Kosco was born in Ramsaytown, Pennsylvania, on 1 April 1908. He was a Slovak American: his father had come from Oľšov, and his mother from Plavnica. His family name had been "Kvasnak", but this was changed to "Kosco" when his parents emigrated to the United States. Kosco graduated from the United States Naval Academy in 1930, and earned a master's degree in weather aerology from the Massachusetts Institute of Technology in 1940. His dissertation, co-authored with John O. F. Dorsett, was called Winter weather types of the eastern North Pacific and adjacent coastal and island areas.Kosco spent much of the 1930s hurricane hunting in the Caribbean. In 1939 he married Bernadette Howley (1912–2013); the couple had three children. Bob Drury and Tom Clavin describe him as a "handsome, athletic six-footer", while Buckner F. Melton Jr. calls him "a slightly stout moon-faced officer".Kosco was assigned to Admiral William Halsey Jr.'s Third Fleet in early October 1944. In December, the fleet was struck by Typhoon Cobra, which destroyed three ships. Kosco, aboard the USS New Jersey, reported a "tropical disturbance" 600 miles (970 km) to the east, and moving away from the fleet, when in fact it was a full-blown typhoon 200 miles (320 km) away and coming towards the fleet. Kosco later admitted to a board of inquiry that he had underestimated Cobra's strength, "basing his prediction on historical data about regional storms rather than relying upon current local observations." He was "mildly reprimanded". In 1967, Kosco published an account of the incident coauthored with Hans Christian Adamson: Halsey's Typhoons: A Firsthand Account of How Two Typhoons, More Powerful than the Japanese, Dealt Death and Destruction to Admiral Halsey's Third Fleet.Kosco was present at the signing ceremony of the Japanese surrender on the USS Missouri at Tokyo Bay on 2 September 1945. He took what is believed to be the only color film footage of the ceremony. This was only released publicly in 2010.In 1946 Kosco participated in Operation Nanook in the Arctic. He was then chief aerologist and chief scientist in Operation Highjump in the Antarctic with Rear Admiral Richard E. Byrd Jr. in 1946–47. He also led several other polar expeditions, collecting specimens for the Smithsonian Institution. Kosco Glacier in Antarctica was named in his honor in 1962.Kosco retired from the Navy in 1960. He died on 11 June 1985 at Bethesda Naval Hospital, and was buried at Arlington National Cemetery.

William D. Sellers (18 August 1928 – 27 August 2014) was an American meteorologist, climate scientist, and pioneer of climate modelling. He created one the earliest climate models and was one of the first scientists to recognize the effects of CO2 in the atmosphere on the Earth's climate. He published the textbook "Physical Climatology".

Bernard Vonnegut (August 29, 1914 – April 25, 1997) was an American atmospheric scientist credited with discovering that silver iodide could be used effectively in cloud seeding to produce snow and rain. He was the older brother of American novelist Kurt Vonnegut.