Barren area evapotranspiration estimates generated from energy budget measurements in the Gila River valley of Arizona
Open-File Report
80-1003
By: O.E. Leppanen
Links
- Document: Report (1914 pdf)
- Download citation as: RIS | Dublin Core
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)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Barren area evapotranspiration estimates generated from energy budget measurements in the Gila River valley of Arizona |
| Series title | Open-File Report |
| Series number | 80-1003 |
| DOI | 10.3133/ofr801003 |
| Edition | - |
| Year Published | 1980 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey, WRD, Gulf Coast Hydroscience Center, |
| Description | v, 36 p. ill., map ;28 cm. |
| Google Analytic Metrics | Metrics page |