| Abstract: | Estimates of evapotranspiration for 479 successive days were created by using energy budget measurements. The measurement point was on the 2-kilometer wide flood plain of the Gila River in east-central Arizona, about 18 kilometers above Coolidge Dam. The flood plain had been cleared of all tall vegetation for distances of about 20 kilometers upstream and 5 kilometers downstream from the measurement site. Chaining, raking, and burning had been used to clear the area immediately surrounding the measurement site about 6 months before measurements began. Ground cover was sparse volunteer Bermudagrass and scattered seepwillow for a distance of at least 1 kilometer in all directions from the measurement point . The water table was deep , so most of the evaporated water came from rainfall, but some came from soil moisture deeper than 2 meters. The March to March water loss (evapotranspiration less rain) was about 47 millimeters, evapotranspiration demand was 377 millimeters. Daily rates varied from very small amounts of condensation to almost 5 millimeters of evapotranspiration. (USGS) |
| Genre: | USGS Numbered Series |
| ProdID: | 23702 |
| Citation Author: | Leppanen, O. E. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | v, 36 p. ill., map ;28 cm. |
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| Citation Publisher: | U.S. Geological Survey, WRD, Gulf Coast Hydroscience Center, |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 80-1003 |
| Citation Search Results Text: | Barren area evapotranspiration estimates generated from energy budget measurements in the Gila River valley of Arizona; 1980; OFR; 80-1003; Leppanen, O. E. |
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| Citation Year: | 1980 |
| Type: | citation/reference |
| Text: | Barren area evapotranspiration estimates generated from energy budget measurements in the Gila River valley of Arizona; 1980; OFR; 80-1003; Leppanen, O. E. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/of/1980/1003/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/of/1980/1003/report.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, WRD, Gulf Coast Hydroscience Center, |
