Journal Article10.13031/2013.27922
Performance of evapotranspiration models for maize ― bare soil to closed canopy
H. J. Farahani,W. C. Bausch +1 more
97
TL;DR: In this paper, the Shuttleworth and Wallace (S-W) ET model has been rigorously tested on crops over the season and the results showed that the S-W ET model performed poorly at low Leaf Area Index (LAI 2).
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Abstract: Simulating evapotranspiration (ET) processes in agricultural crop systems requires dynamic models capable of describing the entire range of crop cover. The Shuttleworth and Wallace (S-W) ET model has the potential to fulfill this requirement, but it has not been rigorously tested on crops over the season. A field study assessed the seasonal performance of the Penman-Monteith (P-M) and the S-W ET models against Bowen ratio energy balance (BREB) measurements for irrigated maize during 1993 in Fort Collins, Colorado. The P-M performed poorly at low Leaf Area Index (LAI 2, and over the season, respectively. To facilitate the practical use of the S-W model, simplified and effective methods for determining soil and canopy resistances are needed.
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Putting the "vap" into evaporation
TL;DR: In this article, the authors document the origin and development of the science of natural evaporation from land surfaces over the last 30-35 years, since the symposium A View from the Watershed was held to commemorate the opening of the new Institute of Hydrology (IH) building in 1973.
Evapotranspiration, Transpiration, and Evaporation Processes and Modeling in the Soil–Residue–Canopy System
Suat Irmak,Meetpal S. Kukal +1 more
- 27 Jun 2022
TL;DR: Evapotranspiration, transpiration, and evaporation processes are accurately quantified in this chapter. The chapter focuses on recent developments and improvements in modeling of these processes occurring from the soil–residue–canopy system in the light of changing climate conditions. The chapter covers various applications of the most-used single-source and multisource combination ET models. However, the models are limited in their application to comprehensively reflect the physiological and biophysical changes in plants in response to elevated CO 2 concentrations.