U.S. Geological Survey, Wyoming-Montana Water Science Center,
3162 Bozeman Ave, Helena, Montana 59601
Tanzania
Research Article
Using Remote Sensing to Characterize and Compare Evapotranspiration from Different Irrigation Regimes in the Smith River Watershed of Central Montana
Author(s): Sando R, Caldwell RR and Blasch WKSando R, Caldwell RR and Blasch WK
According to the 2005 U.S. Geological Survey national water use compilation, irrigation is the second largest use of fresh water in the United States, accounting for 37%, or 484.48 million cubic meters per day, of total freshwater withdrawal. Accurately estimating the amount of water withdrawals and actual consumptive water use (the difference between water withdrawals and return flow) for irrigation at a regional scale is difficult. Remote sensing methods make it possible to compare actual ET (ETa) rates which can serve as a proxy for consumptive water use from different irrigation regimes at a regional scale in a systematic manner. This study investigates crucial components of water use from irrigation such as the difference of ETa rates from flood- and sprinkler-irrigated fields, spatial variability of ETa within a watershed, and the effect of sprinkler irrigation on the water budg.. Read More»
DOI:
10.4172/2168-9768.1000188
Irrigation & Drainage Systems Engineering received 835 citations as per Google Scholar report