196-4 Monitoring Crop Evapotranspiration: Sensor Network Applications In California's Central Valley.

See more from this Division: ASA Section: Climatology & Modeling
See more from this Session: Symposium--Wireless Technologies and Innovations To Meet Food, Water, and Energy Challenges: I

Tuesday, November 5, 2013: 2:05 PM
Tampa Convention Center, Room 12

Christopher Lund1, Kirk Post2, Adam Purdy3, Diganta D. Adhikari4, Alberto Guzman5, Lars Pierce6, Sam Hiatt5, Ian Harlan5, Lee Johnson2 and Forrest Melton7, (1)SEP, Decagon Devices, Inc., Pullman, WA
(2)SEP, NASA ARC-CREST/CSUMB, Moffett Field, CA
(3)ESS, UC Irvine, Irvine, CA
(4)California State University-Fresno, Fresno, CA
(5)SEP, CSUMB-NASA ARC, Moffett Field, CA
(6)SEP, CSUMB, Seaside, CA
(7)SEP, NASA ARC-CREST / CSUMB, Moffett Field, CA
Abstract:
Irrigation scheduling systems can potentially be improved through the use of information on crop evapotranspiration and real-time soil moisture and irrigation data from wireless sensor networks. As part of the NASA Satellite Irrigation Management Support project, we used wireless sensor networks deployed in commercial agricultural fields across California to track precipitation, irrigation, soil moisture, and deep drainage, and to compute daily water budgets for multiple crops at the field scale. Here, we present findings on the efficacy and feasibility of using wireless sensor networks in commercial agricultural fields to monitor key components of crop water budgets. We also compare estimated crop evapotranspiration derived from wireless water budget sensor networks against estimates from surface renewal instrumentation and satellite-derived estimates from the NASA Terrestrial Observation and Prediction System. Results from this research will lead to a better understanding of how to apply satellite and ground based sensor data to support agricultural producers in optimizing irrigation scheduling.

See more from this Division: ASA Section: Climatology & Modeling
See more from this Session: Symposium--Wireless Technologies and Innovations To Meet Food, Water, and Energy Challenges: I