Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020WR028299 |
A graphical interpretation of the rescaled complementary relationship for evapotranspiration | |
Richard. D. Crago; Russell J. Qualls | |
2021-07-09 | |
发表期刊 | Water Resources Research
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出版年 | 2021 |
英文摘要 | Wet-surface evaporation equations related to the Penman equation can be represented graphically on vapor pressure (e) versus temperature (T) graphs (Qualls & Crago, 2020). Here, actual regional evaporation is represented graphically on (e, T) graphs using the Complementary Relationship (CR) between actual and apparent potential evaporation. The CR proposed by the authors can be represented in a simple and intuitive geometric form, in which lines representing the regional latent heat flux, LE, and the wet surface (Priestley & Taylor, 1972) evaporation rate, LEPT, intersect at e=0. This approach allows a graphical estimate of LE (or the corresponding mathematical formulation), provided available energy, wind speed, air temperature and humidity, and roughness lengths for momentum and sensible heat are available. The wet surface temperature is needed, and a calculation method for it is provided. The formulation works well using monthly data from seven sites in Australia, even when the same value of the Priestley & Taylor parameter α is used for all sites. Overall, compared to eddy covariance measurements, root mean square difference averaged 19 W m-2; this compares favorably with the CR formulation proposed by Brutsaert (2015). |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/333743 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Richard. D. Crago,Russell J. Qualls. A graphical interpretation of the rescaled complementary relationship for evapotranspiration[J]. Water Resources Research,2021. |
APA | Richard. D. Crago,&Russell J. Qualls.(2021).A graphical interpretation of the rescaled complementary relationship for evapotranspiration.Water Resources Research. |
MLA | Richard. D. Crago,et al."A graphical interpretation of the rescaled complementary relationship for evapotranspiration".Water Resources Research (2021). |
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