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United States Department of Agriculture

Agricultural Research Service

Research Project: MANAGING LIMITED IRRIGATION AND RAINFALL FOR CROP PRODUCTION IN SEMI-ARID ENVIRONMENTS

Location: Wind Erosion and Water Conservation Research

Title: Incorporation of Hourly Weather Input Data to Cotton2K

Authors
item Booker, Jill
item Lascano, Robert
item Booker, Jon Dean (Jd) -

Submitted to: National Cotton Council Beltwide Cotton Conference
Publication Type: Abstract Only
Publication Acceptance Date: October 15, 2010
Publication Date: January 7, 2011
Citation: Booker, J.D., Lascano, R.J., Booker, J. 2011. Incorporation of Hourly Weather Input Data to Cotton2K. National Cotton Council Beltwide Cotton Conference. January 4-7, 2011, Atlanta, Georgia. p. 158-165.

Technical Abstract: The COTTON2K (C2K) model is a simulation model that is well adapted to simulate cotton growth and development and lint yield in dry climates in part due to the algorithm used to calculate crop evapotranspiration (ET). However, earlier versions of C2K interpolated hourly values of air temperature (Ta), humidity (RH), wind-speed (Uz) and shortwave irradiance (Rg) from corresponding measured daily values of Ta, RH, Uz and Rg. Given the increasing number of weather networks and stations that record hourly values of Ta, RH, Uz and Rg it is now possible to use these variables directly as input in models such as C2K. An updated version of C2K was modified to handle hourly input values of Ta, RH, Uz and Rg decreasing the amount of weather parameterization with the expectation that it will be suited and more readily adopted by users in the Southern High Plains of TX. Specific examples of modeling efforts using the updated version of C2K are presented and compared with results from the previous version of the model.

Last Modified: 9/2/2014
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