Skip to main content
ARS Home » Plains Area » Bushland, Texas » Conservation and Production Research Laboratory » Soil and Water Management Research » Research » Publications at this Location » Publication #317477

Research Project: IMPROVING WATER PRODUCTIVITY AND NEW WATER MANAGEMENT TECHNOLOGIES TO SUSTAIN RURAL ECONOMIES

Location: Soil and Water Management Research

Title: Two-source energy balance model to calculate row crop E.T. and ET:Advances at ARS, Bushland, TX 2010-2015

Author
item Colaizzi, Paul
item Agam, Nurit - Ben Gurion University Of Negev
item Tolk, Judy
item Evett, Steven - Steve
item Howell, Terry - Retired ARS Employee
item O`shaughnessy, Susan
item Gowda, Prasanna

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 3/12/2015
Publication Date: 3/12/2015
Citation: Colaizzi, P.D., Agam, N., Tolk, J.A., Evett, S.R., Howell, T.A., Oshaughnessy, S.A., Gowda, P. 2015. Two-source energy balance model to calculate row crop E.T. and ET:Advances at ARS, Bushland, TX 2010-2015 Poster presentation. Ogallala annual meeting and workshop, March 12, 2015.

Interpretive Summary:

Technical Abstract: The two-source energy balance (TSEB) model has undergone several advances recently that improved its accuracy in calculating evaporation (E), transpiration (T), and evapotranspiration (ET) for row crops. These advances were tested using microlysimeter, sap flow, and large weighing lysimeter measurements of E, T, and ET, respectively, of cotton (Gossypium hirsutum L.) that was fully irrigated by sprinkler at the USDA-ARS, Bushland, Texas, USA. Additional variables studied included net radiation (RN), surface soil heat flux (G0), and latent heat flux (LE). Discrepancies between measured and calculated variables were reduced compared with earlier versions of the TSEB. Additional studies are required to test the TSEB model for different crops and under limited irrigation and dryland conditions.