ABSTRACT
Results from METRIC have been compared and validated using precision-weighing lysimeter measurements from the US Department of Agriculture-Agricultural Research Service (USDA-ARS) at Kimberly, Idaho, and from Utah State University for the Bear River. ETs for periods between satellite overpasses were computed using ratios of ET from METRIC to reference ET computed for ground-based weather stations. ET maps via METRIC provide the means to quantify, in terms of both the amount and spatial distribution, ET from individual fields. The ET images generated by METRIC show the spatial and seasonal changes in ET during the year.
