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Christophorus Buys Ballot and the Weather Systems

Christophorus Buys Ballot and the Weather Systems

Harald Sack
On October 10, 1837, Dutch chemist and meteorologist Christophorus Buys Ballot was born. Buys Ballot is the namesake for Buys Ballot’s law and the Buys Ballot table. Buys Ballot showed that northern hemisphere winds circulate counter-clockwise around low pressure areas and clockwise around high pressure areas. Christophorus Buys Ballot – Youth and Education Christophorus Henricus Didericus Buys Ballot was the son of Anthony Jacobus Buys Ballot, pastor to Kloetinge and Geertruida Françoise Lix-Raaven, born in…
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meteorology
Robert FitzRoy – From Darwin’s famous voyage to Meteorology

Robert FitzRoy – From Darwin’s famous voyage to Meteorology

Harald Sack
On July 5, 1805, English officer of the Royal Navy Vice Admiral Robert Fitzroy was born. He is best known as the captain of HMS Beagle during Charles Darwin‘s famous voyage, FitzRoy‘s second expedition to Tierra del Fuego and the Southern Cone. Moreover, FitzRoy was a pioneering meteorologist who made accurate daily weather predictions, which he called by a new name of his own invention: “forecasts“. Robert FitzRoy – Early Years Robert…
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meteorology
Vincent Schaefer and the Invention of Cloud Seeding

Vincent Schaefer and the Invention of Cloud Seeding

Tabea Tietz
On July 4, 1906, American chemist and meteorologist Vincent Joseph Schaefer was born. Schaefer is best known for his research in meteorology and weather control introduced cloud seeding. On 13 Nov 1946, he flew over Mount Greylock in Massachusetts, successfully seeding clouds with pellets of dry ice (solid carbon dioxide) to produce the first snowstorm initiated by man. Vincent Schaefer – Early Years During his 20s, Vincent Schaefer began to built up a…
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computer science
Jule Gregory Charney and the Science of Weather Prediction

Jule Gregory Charney and the Science of Weather Prediction

Harald Sack
On January 1, 1917, American meteorologist Jule Gregory Charney was born. Working with computer scientist John von Neumann, Charney first applied the electronic computer for weather prediction (1950) and brought about a new understanding of the large-scale flow circulation within the atmosphere. He is considered the father of modern dynamical meteorology. In 1979, the Charney report studied the relations of carbon dioxide and climate and became one of the earliest modern scientific…
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meteorology
James Pollard Espy – the Storm King

James Pollard Espy – the Storm King

Harald Sack
On May 9, 1785, U.S. Meteorologist James Pollard Espy was born. Espy developed a convection theory of storms and developed the use of the telegraph in assembling weather observation data by which he studied the progress of storms and laid the basis for scientific weather forecasting. James Pollard Espy – Early Years The youngest of ten children, James Espy was born in Westmoreland County, Pennsylvania, USA. He had an ardent desire for…
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meteorology
Sir Francis Beaufort and the Wind Scale

Sir Francis Beaufort and the Wind Scale

Harald Sack
On May 27, 1774, Irish hydrographer and officer in the Royal Navy Sir Francis Beaufort was born. Beaufort was the creator of the Beaufort Scale for indicating wind force. In 1806, British Admiral Sir Francis Beaufort devised a simple scale that coastal observers could use to report the state of the sea to the Admiralty. Francis Beaufort – Early Years Francis Beaufort was born at Navan, County Meath, Ireland, the son of…
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meteorology
Tetsuya Theodore Fujita’s Research on Severe Storms

Tetsuya Theodore Fujita’s Research on Severe Storms

Tabea Tietz
On October 23, 1920, Japanese-American meteorologist Tetsuya Theodore Fujita was born. Fujita’s research at the University of Chicago on severe thunderstorms, tornadoes, hurricanes, and typhoons revolutionized the knowledge of each. In collaboration with Allen Pearson, head of the National Severe Storms Forecast Center/NSSFC , Fujita developed the Fujita scale (F-scale, Feb 1971) for measuring tornadoes on the basis of their damage. Ted Fujita – Family Background and Education Tetsuya Theodore Fujita was born…
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meteorology
Taming Hurricane Debbie – Experiments in Weather Modification

Taming Hurricane Debbie – Experiments in Weather Modification

Tabea Tietz
On August 18, 1969, intense and long-lived Hurricane Debbie was seeded with silver iodide as part of a weather modification experiment by Project Stormfury, which resulted in a fall of windspeeds by 31%. The hypothesis was that the silver iodide would cause supercooled water in the storm to freeze, disrupting the inner structure of the hurricane. Hurricane Debbie Hurricane Debbie formed on August 14 in the southern Atlantic Ocean and made its…
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