https://dx.doi.org/10.1623/hysj.49.3.461.54352">
 

Title

Solar radiation, longwave radiation and emergent wetland evapotranspiration estimates from satellite data in Florida, USA

Abstract

Routine estimates of daily incoming solar radiation from the GOES-8 satellite were compared to locally measured values in Florida. Longwave radiation estimates corrected using GOES-derived cloud amount and cloud top temperature products improved net radiation estimates as compared to a clear sky longwave approach. The Penman-Monteith, Turc, Hargreaves and Makkink models were applied using GOES-derived estimates of solar radiation and net radiation to predict daily evapotranspiration and were compared to evapotranspiration measured with an eddy-correlation system in an emergent wetland experimental site in north-central Florida under unstressed conditions. While the Penman-Monteith model provided the best estimates of evapotranspiration (R 2 = 0.92), the empirical Makkink method demonstrated nearly comparable agreement (R 2 = 0.90) using only the GOES solar radiation and measured temperature. The results show that it is possible to generate spatially distributed daily potential evapotranspiration estimates using GOES-derived solar radiation and net radiation with limited additional surface measurements.

Department

Earth Systems Research Center

Publication Date

12-15-2009

Journal Title

Hydrological Sciences Journal

Publisher

Taylor & Francis

Digital Object Identifier (DOI)

https://dx.doi.org/10.1623/hysj.49.3.461.54352

Document Type

Article

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