William Jackson Humphreys
William Jackson Humphreys | |
---|---|
Born | |
Died | November 10, 1949 | (aged 87)
Awards | Howard N. Potts Medal (1916) |
Scientific career | |
Doctoral advisor | Henry Augustus Rowland |
William Jackson Humphreys (February 3, 1862 – November 10, 1949) was an American physicist and atmospheric researcher.
Biography[]
Humphreys was born on February 3, 1862 in Gap Mills, West Virginia to Jackson and Eliza Ann (née Eads) Humphreys.[1] He studied physics at Washington & Lee University in Virginia and later at Johns Hopkins University in Baltimore, where he earned his Ph.D. in 1897, studying under Henry Augustus Rowland.[2]
He worked in the fields of spectroscopy, atmospheric physics and meteorology. In the field of spectroscopy he found the shift of spectral lines under pressure. In atmospheric physics he found a very good model for the stratosphere in 1909. He wrote numerous books, including a textbook titled Physics of the Air, first published in 1920 and considered a standard work of the time,[2] though it was last published in 1940.[citation needed] He also held some teaching positions at universities. He concluded that the 1815 eruption of Mount Tambora was responsible for the subsequent cooling known as the Year Without a Summer.[3]
From 1905 to 1935 he worked as a physicist for the U.S. Weather Bureau, predecessor of the National Weather Service.[2] In 1924 he was an Invited Speaker of the ICM in Toronto.[4]
He died on November 10, 1949 in Washington, D.C.
Bibliography[]
- Physics of the Air (1920)
- Weather proverbs and paradoxes (1923)
- Fogs and clouds, The Williams & Wilins Co. (1926)
- Rain making and Other weather vagaries (1926)
- Snow crystals (1931)
References[]
- ^ Hockey, Thomas (2009). The Biographical Encyclopedia of Astronomers. Springer Publishing. ISBN 978-0-387-31022-0. Retrieved August 22, 2012.
- ^ Jump up to: a b c "NOAA History - Profiles in Time/NWS Biographies". National Oceanic and Atmospheric Administration. Retrieved 2011-11-09.
- ^ https://climate.nasa.gov/blog/183
- ^ Humphreys, W. J. "The effect of surface drag on surface winds". In: Proceedings of the International Congress of Mathematicians in Toronto, August 11–16. 1924. vol. 2. pp. 297–304.
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- American physicists
- American meteorologists
- American people of Welsh descent
- 1862 births
- 1949 deaths
- Howard N. Potts Medal recipients
- Washington and Lee University alumni
- Johns Hopkins University alumni