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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 790120010


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
The Bushland weighing lysimeters: A quarter century of crop ET investigations to advance sustainable irrigation -
The Bushland weighing lysimeters: A quarter century of crop ET investigations to advance sustainable irrigation Reprint Icon -
Evett, S.R., Howell, T.A., Schneider, A.D., Copeland, K.S., Dusek, D.A., Tolk, J.A., Brauer, D.K., Marek, G.W., Marek, T.M., Gowda, P. 2016. The Bushland weighing lysimeters: A quarter century of crop ET investigations to advance sustainable irrigation. Transactions of the ASABE. 58(5):13031/trans.58.11159.
In situ sensors, weighing lysimeters and COSMOS under vegetated and bare conditions with subsurface drip irrigation -
Evett, S.R., Schwartz, R.C., Brauer, D.K., Franz, T., Ruthardt, B.B., Copeland, K.S. 2014. In situ sensors, weighing lysimeters and COSMOS under vegetated and bare conditions with subsurface drip irrigation [abstract].
Soil water sensing for climate change studies; Applicability of COSMOS and local sensor networks -
Evett, S.R., Schwartz, R.C., Brauer, D.K., Franz, T., Ruthardt, B.B., Copeland, K.S. 2014. Soil water sensing for climate change studies; Applicability of COSMOS and local sensor networks [abstract].
Sensing water from subsurface drip irrigation laterals: In situ sensors, weighing lysimeters and COSMOS under vegetated and bare conditions -
Evett, S.R., Schwartz, R.C., Ruthardt, B.B., Bell, J.M., Copeland, K.S. 2014. Sensing water from subsurface drip irrigation laterals: In situ sensors, weighing lysimeters and COSMOS under vegetated and bare conditions. ASA-CSSA-SSSA Annual Meeting Abstracts [abstract].
Post-processing techniques for reducing errors in weighing lysimeter evapotranspiration (ET) datasets -
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 -
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? -
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. -
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 Reprint Icon -
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 Reprint Icon -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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. -
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 -
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 -
CROP COEFFICIENTS DEVELOPED AT BUSHLAND, TEXAS FOR CORN, WHEAT, SORGHUM, SOYBEAN, COTTON, AND ALFALFA -
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 -
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 -
IRRIGATED FESCUE GRASS ET COMPARED WITH CALCULATED REFERENCE GRASS ET -
EVALUATION OF CROP WATER STRESS INDEX FOR LEPA IRRIGATED CORN -
Last Modified: 5/2/2016
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