Skip to Main Content
Trends in pan evaporation and actual evapotranspiration across the conterminous U.S.: paradoxical or complementary?Author(s): Michael T. Hobbins; Jorge A. Ramirez; Thomas C. Brown
Source: Geophysical research letters. 30(13): L13503 [5 pages]
Publication Series: Miscellaneous Publication
PDF: Download Publication (1.1 MB)
DescriptionPan evaporation (ETpan) has decreased at 64% of pans in the conterminous U.S. over the past half-century. Comparing trends in ETpan and water budget-derived actual evapotranspiration (ET*a), we observe the so-called ‘‘Pan Evaporation Paradox,’’ which we confirm is no more than a manifestation of the complementarity between actual evapotranspiration (ETa) and potential evapotranspiration (ETp). Examining trends in the components of ETa—the radiative energy and regional advective budgets—we show that both components must be considered together to explain the relationship between ETpan and ET*a.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationHobbins, Michael T.; Ramirez, Jorge A.; Brown, Thomas C. 2004. Trends in pan evaporation and actual evapotranspiration across the conterminous U.S.: paradoxical or complementary?. Geophysical research letters. 30(13): L13503 [5 pages]
Keywordshydrology, evaporation, evapotranspiration, hydroclimatology, global change, water cycles, meteorology, climatology, trends
- Watershed evapotranspiration increased due to changes in vegetation composition and structure under a subtropical climate
- Watershed evapotranspiration increased due to changes in vegetation composition and structure under a subtropical climate.
- Integrating climatic and fuels information into National Fire Risk Decision Support Tools
XML: View XML