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Hourly computed potential evapotranspiration in thousandths of an inch, January 1, 1948 - September 30, 2016

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2020-08-14T00:00:00Z
The text file PET.txt contains hourly data from January 1, 1948, to September 30, 2016. Daily potential evapotranspiration (PET) in thousandths of an inch is computed from average daily air temperature in degrees Fahrenheit (°F), average daily dewpoint temperature in degrees Fahrenheit (°F), daily total wind movement in miles (mi), and daily total solar radiation in Langleys per day (Lg/d) and disaggregated to hourly PET in thousandths of an inch using the Fortran program LXPET (Murphy, 2005). Reference Cited: Murphy, E.A., 2005, Comparison of potential evapotranspiration calculated by the LXPET (Lamoreux Potential Evapotranspiration) Program and by the WDMUtil (Watershed Data Management Utility) Program: US Geological Survey OpenFile Report 2005-1020, 20p., https://pubs.er.usgs.gov/publication/ofr20051020.

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