Glenn Thomas Trewartha
Glenn Thomas Trewartha (1896 – 1984) was an American geographer and climatologist of Cornish American descent. He is best known for his eponymous Trewartha climate classification, an expanded and modified version of the Köppen–Geiger system. He graduated from the University of Wisconsin–Madison, with a Ph.D. in 1924.
Also recorded as Glenn T. Trewartha
Glenn Thomas Trewartha
- Born
- 1896 · Hazel Green.
- Died
- 1984 · Madison.
- Nationality
- United States
- Occupation
- geographer · cartographer
- Education
- University of Wisconsin–Madison
- Honours
- Guggenheim Fellowship
- Languages
- English
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Glenn Thomas Trewartha (1896 – 1984) was an American geographer and climatologist of Cornish American descent. He is best known for his eponymous Trewartha climate classification, an expanded and modified version of the Köppen–Geiger system. He graduated from the University of Wisconsin–Madison, with a Ph.D. in 1924.
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Glenn Thomas Trewartha (1896–1984) was a cartographer and geographer, of American nationality. The cartographer was born in Hazel Green and died in Madison.
Glenn Thomas Trewartha was educated at University of Wisconsin–Madison. The cartographer worked for University of Wisconsin–Madison and lived in Madison.
Languages used include English. Honours include Guggenheim Fellowship.
Composed from admitted, traceable facts · 27 September 2026
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wikidata · Q5569143 · wikipedia · Glenn Thomas Trewartha
In this article
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Works
• "The earliest map of Galena, Illinois" Wisconsin Magazine Of History. Volume: 23 /Issue: 1 (1939–1940) • A Reconnaissance geography of Japan, University of Wisconsin, 1934 • Elements of geography physical and cultural, Glenn Thomas Trewartha, Vernor Clifford Finch, Mc Graw-Hill, 1942 • Japan, a physical, cultural and regional geography, University of Wisconsin press, 1945 • An introduction to climate, McGraw-Hill, 1954 • Japan, a geography, Milwaukee: University of Wisconsin press, 1965 • An introduction to climate McGraw-Hill, 1968 • The More developed realm: a geography of its population, Editor Glenn Thomas Trewartha, Pergamon Press, 1978, • The Earth's problem climates, University of Wisconsin Press, 1981,
Life and career
Dated record
Life and career
The full dated record · 2 entries
1896
Glenn Thomas Trewartha was born on 22 November 1896.
1984
Glenn Thomas Trewartha died at Madison.
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Madison
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Hazel Green.
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The biographical narrative on this page is based on the Wikipedia article Glenn Thomas Trewartha, revision 1312622428 (EN edition), by its contributors. VALÉORINE has edited that text and built its own documentary record around it. The reused material is available under CC BY-SA 4.0, and this page's reuse of it is offered under the same licence. Everything else on this page — the chronology, the holdings, the evidence, the plates and the connections — is VALÉORINE's own record. Sources and licences.
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authority record
- Wikidata, structured authority record Q5569143: Glenn Thomas Trewartha
General reference · Wikidata
reference work
- “Glenn Thomas Trewartha”, English Wikipedia, consulted as further reading
Reputable secondary · Wikipedia
Awards
He taught at the University of Wisconsin. He gave an address to the Association of American Geographers, "A Case for Population Geography", in which he argued that "fundamentally geography is anthropocentric, and if such is the case, that numbers, densities and qualities of the population provide the essential background for all geography. Population provide the essential background for all geography. Population is the point of reference from which all other elements are observed, and from which they all singly and collectively derive significance and meaning". He also wrote about climate, explaining that the atmosphere was like "a pane of glass in a greenhouse.. Thus maintaining surface temperatures considerably higher than they otherwise would be."
• 1926 Guggenheim Fellowship
Notes from the source article
Cited by Wikipedia
Notes from the source article
These works are cited by the source article, in its own numbering. They are recorded as its citations, not as sources VALÉORINE has verified.
- 1."Wisconsin history:an annotated bibliography," Barbara Dotts Paul and Justus F. Paul, 1988, pg. 12
- 2.Rowse, A. L. The Cousin Jacks, The Cornish in America
- 3.UW-Madison Department of Geoscience - History of the Department.
- 4.Trewartha, G. T. (1953). A case for population geography. Annals of the Association of American geographers, 43(2), 71-97.(page 83)
- 5.Malakoff, David. Global Warming: From Theory to Fact. NPR.org. 21 May 2007.
- 6.Climate Change: Listeners' Questions. NPR.org. 4 May 2007.
- 7.Glenn Thomas Trewartha - John Simon Guggenheim Memorial Foundation.
- 8.Archived copy.
- 9.Glenn Thomas Trewartha (B.1896, d.----) All publications.
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The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 16 August 2026.
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