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United States Department of Agriculture

Agricultural Research Service

Related Topics

KAREN S COPELAND
Soil and Water Management Research
Soil Scientist

Phone: (806) 356-5735
Fax: (806) 356-5750
CONSERVATION AND PRODUCTION RESEARCH LABORATORY
P.O. DRAWER 10 (2300 EXPERIMENT STATION RD - SHIP)
BUSHLAND, TX, 79012-0010


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Post-processing techniques for reducing errors in weighing lysimeter evapotranspiration (ET) datasets - (Peer Reviewed Journal)
Marek, G.W., Evett, S.R., Gowda, P., Howell, T.A., Copeland, K.S., Baumhardt, R.L. 2014. Post-processing techniques for reducing errors in weighing lysimeter evapotranspiration (ET) datasets. Transactions of the ASABE. 57(2):499-515.
Deriving hourly evapotranspiration (ET) rates with SEBS: A lysimetric evaluation - (Peer Reviewed Journal)
Gowda, P., Howell, T.A., Paul, G., Colaizzi, P.D., Marek, T.H., Su, B., Copeland, K.S. 2013. Deriving hourly evapotranspiration (ET) rates with SEBS: A lysimetric evaluation. Vadose Zone Journal. 12(3):1-11.
Can weighing lysimeter ET represent surrounding field ET well enough to test flux station measurements of daily and sub-daily ET? - (Peer Reviewed Journal)
Evett, S.R., Schwartz, R.C., Howell, T.A., Baumhardt, R.L., Copeland, K.S. 2012. Can weighing lysimeter ET represent surrounding field ET well enough to test flux station measurements of daily and sub-daily ET?. Advances in Water Resources. 50:79-90. http://dx.doi.org/10.1016/j.advwatres.2012.07.023.
Evapotranspiration and crop coefficients for irrigated sunflower in the southern high plains. - (Proceedings)
Howell, T.A., Evett, S.R., Tolk, J.A., Copeland, K.S., Marek, T.H. 2012. Evapotranspiration and crop coefficients for irrigated sunflower in the southern high plains. Proceedings of the American Society of Agricultural and Biological Engineers International (ASABE). Paper No. 12-1338306.
Evaporative loss from irrigated interrows in a highly advective semi-arid agricultural area - (Peer Reviewed Journal)
Agam, N., Evett, S.R., Tolk, J.A., Kustas, W.P., Colaizzi, P.D., Alfieri, J.G., McKee, L.G., Copeland, K.S., Howell, T.A., Chavez, J.L. 2012. Evaporative loss from irrigated interrows in a highly advective semi-arid agricultural area. Advances in Water Resources. 50:20-30.
Manuscript title: Evaluating the two-source energy balance model using local thermal and surface flux observations in a strongly advective irrigated agricultural area - (Peer Reviewed Journal)
Kustas, W.P., Alfieri, J.G., Anderson, M.C., Colaizzi, P.D., Prueger, J.H., Evett, S.R., Neale, C.M., French, A.N., Hipps, L.E., Chavez, J.L., Copeland, K.S., Howell, T.A. 2012. Evaluating the two-source energy balance model using local thermal and surface flux observations in a strongly advective irrigated agricultural area. Advances in Water Resources. 50:120-133.
ET mapping with high-resolution airborne remote sensing data in an advective semiarid environment - (Peer Reviewed Journal)
Chavez, J.L., Gowda, P., Howell, T.A., Garcia, L.A., Copeland, K.S., Neale, C.M. 2012. ET mapping with high-resolution airborne remote sensing data in an advective semiarid environment. Journal of Irrigation and Drainage Engineering. 138(5):416-423.
Lysimetric evaluation of eddy covariance fluxes over irrigated cotton in the Texas High Plains - (Abstract Only)
Gowda, P., Howell, T.A., Ha, W., Copeland, K.S., Rajan, N. 2011. Lysimetric evaluation of eddy covariance fluxes over irrigated cotton in the Texas High Plains [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Paper No. 194-1.
Utility of Thermal-based Dual-Temperature-Difference Technique under Strongly Advective Conditions during BEAREX08 - (Proceedings)
Kustas, W.P., Alfieri, J.G., Anderson, M.C., Colaizzi, P.D., Prueger, J.H., Chaves, J.L., Neale, C.M., Dulaney, W.P., Copeland, K.S., Howell, T.A. 2012. Utility of thermal-based dual-temperature-difference technique under strongly advective conditions during BEAREX08. International Association of Hydrological Science. 352:145-148.
A comparison of the eddy covariance and lysimetry-based measurements of the surface energy fluxes during BEAREX08 - (Proceedings)
Alfieri, J.G., Kustas, W.P., Prueger, J.H., Chaves, J.L., Evett, S.R., Neals, C.M., Anderson, M.C., Hipps, L., Copeland, K.S., Howell, T.A., French, A.N., Dulaney, W.P., McKee, L.G. 2012. A comparison of the eddy covariance and lysimetry-based measurements of the surface energy fluxes during BEAREX08. International Association of Hydrological Science. 352:215-218.
Sebal for Estimating Hourly Et Fluxes over Irrigated and Dryland Cotton During Bearex08 - (Proceedings)
Gowda, P., Howell, T.A., Paul, G., Colaizzi, P.D., Marek, T.H., Copeland, K.S. 2011. SEBAL for estimating hourly ET fluxes over irrigated and dryland cotton during BEAREX08. Proceedings of the World Environmental and Water Resources Congress Conference. Paper No. 2787. 2011 CDROM.
Use of a dual temprature-difference two-source model to estimate turbulent energy fluxes under strongly advective conditions during BEAREX08 - (Abstract Only)
Alfieri, J.G., Kustas, W.P., Anderson, M.C., Colaizzi, P.D., Prueger, J.H., Hipps, L.E., Chavez, J.L., Evett, S.R., Copeland, K.S., Howell, T.A. 2011. Use of a dual temprature-difference two-source model to estimate turbulent energy fluxes under strongly advective conditions during BEAREX08 [abstract]. American Meteorological Society. http://ams.confex.com/ams/91Annual/webprogram/Paper185387.html.
Evapotranspiration of irrigated sunflower in a semi-arid environment - (Abstract Only)
Howell, T.A., Evett, S.R., Tolk, J.A., Copeland, K.S. 2010. Evapotranspiration of irrigated sunflower in a semi-arid environment [abstract]. In: ASA-CSSA-SSSA Annual Meeting Abstracts, October 31-November 4, 2010, Long Beach, California. Paper No. 123-7. 2010 CDROM.
Surface aerodynamic temperature modeling over rainfed cotton - (Peer Reviewed Journal)
Chavez, J., Howell, T.A., Gowda, P., Copeland, K.S., Prueger, J.H. 2010. Surface aerodynamic temperature modeling over rainfed cotton. Transactions of the ASABE. 53(3):759-767.
Utility of Thermal-based Dual-Temperature-Difference Technique for Surface Energy Balance Estimation under Strongly Advective Conditions during BEARE08 - (Abstract Only)
Kustas, W.P., Alfieri, J.G., Anderson, M.C., Colaizzi, P.D., Prueger, J.H., Chavez, J.L., Hipps, L.E., Evett, S.R., Copeland, K.S., Howell, T.A. 2010. Utility of thermal-based dual-temperature-difference technique for surface energy balance estimation under strongly advective conditions during BEAREX08 [abstract]. Remote Sensing and Hydrology 2010 Symposium. Paper No. 146, p. 68.
Evaluation of five surface energy balance approaches for mapping ET using Landsat TM data acquired during BEAREX08 - (Abstract Only)
Gowda, P., Howell, T.A., Vinukollu, R., Colaizzi, P.D., Copeland, K.S. 2009. Evaluation of five surface energy balance approaches for mapping ET using Landsat TM data acquired during BEAREX08 [abstract]. American Society of Agronomy, Crop Science Society of America, Soil Science Society of America 2009 Annual Meeting Abstracts, November 1-5, 2009, Pittsburgh, Pennsylvania. 2009 CDROM.
Aerodynamic Temperature Derived from Flux-Profile Measurements and Two-Source Model Predictions over a Cotton Row Crop in an Advective Environment - (Abstract Only)
Chavez, J.L., Kustas, W.P., Gowda, P., Howell, T.A., Prueger, J.H., Hipps, L.E., Oshaughnessy, S.A., Colaizzi, P.D., Evett, S.R., Neale, C., Anderson, M.C., Copeland, K.S. 2009. Aerodynamic temperature derived from flux-profile measurements and two-source model predictions over a cotton row crop in an advective environment [abstract]. The International Annual Meetings of the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Symposium on Remote Sensing at Multiple Scales: The Bushland Evapotranspiration and Agricultural Remote Sensing Experiment. http://a-c-s.confex.com/crops/2009am/webprogram/Paper55678.html.
Mapping ET at high resolution in an advective semi-arid environment with airborne multispectral imagery - (Proceedings)
Chavez, J., Gowda, P., Howell, T.A., Garcia, L., Copeland, K.S. 2009. Mapping ET at high resolution in an advective semi-arid environment with airborne multispectral imagery. Environmental and Water Resources Institute World Congress Proceedings, May 17-21, 2009, Kansas City, Missouri.p.4411-4421.2009 CDROM.
Evaluating eddy covariance cotton ET measurements in an advective environment with large weighing lysimeters - (Peer Reviewed Journal)
Chavez Eguez, J.L., Howell, T.A., Copeland, K.S. 2009. Evaluating eddy covariance cotton ET measurements in an advective environment with large weighing lysimeters. Irrigation Science. 28(1):35-50.
Estimating hourly crop ET using a two-source energy balance model and multispectral airborne imagery - (Peer Reviewed Journal)
Chavez Eguez, J.L., Gowda, P., Howell, T.A., Neale, C., Copeland, K.S. 2009. Estimating hourly crop ET using a two-source energy balance model and multispectral airborne imagery. Irrigation Science. 28(1):79-91. [doi:10.1007/s00271-009-0177-9]
Radiometric surface temperature calibration effects on satellite based evapotranspiration estimation - (Peer Reviewed Journal)
Chavez Eguez, J.L., Gowda, P., Howell, T.A., Copeland, K.S. 2009. Radiometric surface temperature calibration effects on satellite based evapotranspiration estimation. International Journal of Remote Sensing. 30(9):2337-2354.
Energy balance of irrigated and dryland cotton in the Southern High Plains - (Abstract Only)
Howell, T.A., Evett, S.R., Tolk, J.A., Colaizzi, P.D., Gowda, P., Chavez Eguez, J.L., Copeland, K.S. 2008. Energy balance of irrigated and dryland cotton in the Southern High Plains [abstract]. 2008 Joint Meeting of American Society of Agronomy, Soil Science Society of America, and Crop Science Society of America, October 5-9, 2008, Houston, Texas. Paper No. 779-1. 2008 CDROM.
Comparing SEBAL ET with lysimeter data in the semi-arid Texas High Plains - (Proceedings)
Gowda, P., Howell, T.A., Chavez Eguez, J.L., Copeland, K.S., Paul, G. 2008. Comparing SEBAL ET with lysimeter data in the semi-arid Texas High Plains. In: Proceedings of the Environmental and Water Resources Institute World Congress, May 12-16, 2008, Honolulu, Hawaii. 2008 CDROM.
Evaluating three evapotranspiration mapping algorithms with lysimetric data in the semi-arid Texas High Plains - (Proceedings)
Chavez Eguez, J.L., Gowda, P., Howell, T.A., Copeland, K.S. 2007. Evaluating three evapotranspiration mapping algorithms with lysimetric data in the semi-arid Texas High Plains. In: Proceedings of the 28th Annual International Irrigation Show, December 9-11, 2007, San Diego, California. p. 268-283. 2007 CDROM.
Preliminary evaluation of sensible heat flux measurements from a large aperture scintillometer using lysimetric data - (Abstract Only)
Gowda, P., Howell, T.A., Scanlon, B.R., Copeland, K.S., Bush, K.A. 2007. Preliminary evaluation of sensible heat flux measurements from a large aperture scintillometer using lysimetric data [abstract]. American Geophysical Union Fall Meeting, December 10-14, 2007, San Francisco, California. 2007 CDROM.
An aerodynamic temperature-based regional ET model evaluation for Texas High Plains agrometeorological conditions - (Abstract Only)
Chavez Eguez, J.L., Gowda, P., Howell, T.A., Copeland, K.S. 2007. An aerodynamic temperature-based regional ET model evaluation for Texas High Plains agrometeorological conditions [abstract]. ASA-CSSA-SSSA Annual Meeting, November 4-8, 2007, New Orleans, Louisiana. 2007 CDROM.
Hourly and daily evapotranspiration of alfalfa under regional advection - (Abstract Only)
Howell, T.A., Tolk, J.A., Evett, S.R., Copeland, K.S. 2007. Hourly and daily evapotranspiration of alfalfa under regional advection [abstract]. ASA-CSSA-SSSA Annual Meeting, November 4-8, 2007, New Orleans, Louisiana. 2007 CDROM.
Evapotranspiration of deficit irrigated sorghum and winter wheat - (Proceedings)
Howell, T.A., Tolk, J.A., Evett, S.R., Copeland, K.S., Dusek, D.A. 2007. Evapotranspiration of deficit irrigated sorghum and winter wheat. In: Clemmens, A.J., editor. USCID Fourth International Conference on Irrigation and Drainage. The Role of Irrigation and Drainage in a Sustainable Future, October 3-6, 2007, Sacramento, California. p. 223-239. 2007 CDROM.
Evapotranspiration of deficit irrigated sorghum - (Experiment Station)
Howell, T.A., Tolk, J.A., Evett, S.R., Copeland, K.S., Dusek, D.A. 2007. Evapotranspiration of deficit irrigated sorghum. Texas Experiment Station Field Day Handout. p. 32-39.
Evapotranspiration of deficit irrigated sorghum - (Proceedings)
Howell, T.A., Tolk, J.A., Evett, S.R., Copeland, K.S., Dusek, D.A. 2007. Evapotranspiration of deficit irrigated sorghum. In: Proceedings of the World Water and Environmental Resources Congress, May 15-19, 2007, Tampa, Florida. 2007 CDROM.
Two-source energy balance model evaluation for mapping evapotranspiration on the semi-arid Southern High Plains - (Abstract Only)
Gowda, P., Chavez Eguez, J.L., Colaizzi, P.D., Evett, S.R., Howell, T.A., Copeland, K.S. 2007. Two-source energy balance model evaluation for mapping evapotranspiration on the semi-arid Southern High Plains [abstract]. 2007 AGU Joint Assembly, May 22-25, 2007, Acapulco, Mexico. 2007 CDROM.
Metric Estimated Et Evaluation on the Semiarid Southern High Plains - (Abstract Only)
Chavez Eguez, J.L., Gowda, P., Colaizzi, P.D., Evett, S.R., Howell, T.A., Copeland, K.S. 2007. Metric estimated ET evaluation on the semiarid Southern High Plains [abstract]. 2007 AGU Joint Assembly, May 22-25, 2007, Acapulco, Mexico. 2007 CDROM.
Irrigated soybean evapotranspiration in a semi-arid environment. - (Abstract Only)
Howell, T.A., Evett, S.R., Tolk, J.A., Copeland, K.S., Colaizzi, P.D. 2006. Irrigated soybean evapotranspiration in a semi-arid environment. ASA-CSSA-SSSA Annual Meeting, November 12-16, 2006, Indianapolis, Indiana. 2006 CDROM.
External Full-Time Vacuum Lysimeter Drainage System - (Peer Reviewed Journal)
Evett, S.R., Ruthardt, B.B., Copeland, K.S. 2006. External full-time vacuum lysimeter drainage system. Applied Engineering in Agriculture. 22(6):875-880.
Variability analyses of alfalfa-reference to grass-reference evapotranspiration ratios in growing and dormant seasons - (Peer Reviewed Journal) - (14-Jul-06)
Crop Coefficients Developed at Bushland, Texas for Corn, Wheat, Sorghum, Soybean, Cotton, and Alfalfa - (Proceedings)
Howell, T.A., Evett, S.R., Tolk, J.A., Copeland, K.S., Dusek, D.A., Colaizzi, P.D. 2006. Crop coefficients developed at Bushland, Texas for corn, wheat, sorghum, soybean, cotton, and alfalfa. In: Proceedings of the World Water and Environmental Resources Congress. Examining the Confluence of Environmental and Water Concerns, May 21-25, 2006, Omaha, Nebraska. 2006 CDROM.
Evapotranspiration of corn and forage sorghum for silage - (Proceedings)
Howell, T.A., Evett, S.R., Tolk, J.A., Copeland, K.S., Colaizzi, P.D., Gowda, P. 2008. Evapotranspiration of corn and forage sorghum for silage. In: Proceedings of the Environmental and Water Resources Institute World Congress, May 12-16, 2008, Honolulu, Hawaii. 2008 CDROM.
Radiation Balance of Irrigated Turf Grass - (Abstract Only) - (21-Oct-01)
Irrigated Fescue Grass Et Compared with Calculated Reference Grass Et - (Proceedings) - (14-Nov-00)
Evaluation of Crop Water Stress Index for Lepa Irrigated Corn - (Peer Reviewed Journal) - (16-Nov-98)
Last Modified: 7/28/2014
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