Physical robustness of canopy temperature models for crop heat stress simulation across environments and production conditions

A - Papers appearing in refereed journals

Webber, H., White, J. W., Kimball, B. A., Ewert, F., Asseng, S., Rezaei, E. E., Pinter, P. J., Hatfield, J., Reynolds, M. P., Ababaei, B., Bindi, M, Doltra, J., Ferrise, R., Kage, Henning, Kassie, B.T., Kersebaum, K.-C., Luig, A., Olesen, J. E., Semenov, M. A., Stratonovitch, P., Ratjen, A. M., LaMorte, R. L., Leavitt, S. W., Hunsaker, D. J., Wall, G. W. and Martre, P. 2017. Physical robustness of canopy temperature models for crop heat stress simulation across environments and production conditions. Field Crops Research. 216, pp. 75-88.

AuthorsWebber, H., White, J. W., Kimball, B. A., Ewert, F., Asseng, S., Rezaei, E. E., Pinter, P. J., Hatfield, J., Reynolds, M. P., Ababaei, B., Bindi, M, Doltra, J., Ferrise, R., Kage, Henning, Kassie, B.T., Kersebaum, K.-C., Luig, A., Olesen, J. E., Semenov, M. A., Stratonovitch, P., Ratjen, A. M., LaMorte, R. L., Leavitt, S. W., Hunsaker, D. J., Wall, G. W. and Martre, P.
Abstract

Despite widespread application in studying climate change impacts, most crop models ignore complex interactions among air temperature, crop and soil water status, CO2 concentration and atmospheric conditions that influence crop canopy temperature. The current study extended previous studies by evaluating Tc simulations from nine crop models at six locations across environmental and production conditions. Each crop model implemented one of an empirical (EMP), an energy balance assuming neutral stability (EBN) or an energy balance correcting for atmospheric stability conditions (EBSC) approach to simulate Tc. Model performance in predicting Tc was evaluated for two experiments in continental North America with various water, nitrogen and CO2 treatments. An empirical model fit to one dataset had the best performance, followed by the EBSC models. Stability conditions explained much of the differences between modeling approaches. More accurate simulation of heat stress will likely require use of energy balance approaches that consider atmospheric stability conditions.

KeywordsHeat stress; Crop model improvement; Heat and drought interactions; Climate change impact assessments; Canopy temperature; Wheat
Year of Publication2017
JournalField Crops Research
Journal citation216, pp. 75-88
Digital Object Identifier (DOI)doi:10.1016/j.fcr.2017.11.005
Open accessPublished as non-open access
Funder project or code[20:20 Wheat] Maximising yield potential of wheat
Designing Future Wheat (DFW) [ISPG]
DFW - Designing Future Wheat - Work package 1 (WP1) - Increased efficiency and sustainability
FunderBiotechnology and Biological Sciences Research Council
Output statusPublished
Publication dates
Online14 Nov 2017
Publication process dates
Accepted07 Nov 2017
Copyright licenseCC BY
PublisherElsevier Science Bv
ISSN0378-4290

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