Technical Abstract: Camelina (Camelina sativa [L.] Crtz.) is an oilseed crop with apparently low water requirements and therefore could be very attractive for growers in arid lands. Verifying this potential for environments such as the U.S. Southwest, however, requires field experiments that test yield response to different irrigation schedules. By adapting evapotranspiration (ET) methodologies previously developed for more conventional crops (i.e., wheat and cotton), consumption of water by Camelina could be assessed in a spatial context. Using remote sensing observations collected in 2007 and 2008 over a 1.3 ha plot in Maricopa, Arizona, daily ET over Camelina was estimated with a surface energy balance approach. The observations included ground-based imagery spanning visible, near infrared, and thermal infrared wavelengths. Crop treatments included four level of water depletion for 32 plots and one level of water-stress for 6 other plots. Modeled transpiration generally agreed well with independently obtained soil moisture depletions. Preliminary results indicate that crop coefficients, adapted by vegetation indices, provide sufficient guidance for effective irrigation scheduling and that canopy surface temperature changes can be a reliable indicator of ET.