Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1029/2019WR026570 |
Determinants of the Asymmetric Parameter in the Generalized Complementary Principle of Evaporation | |
Wang, Liming; Tian, Fuqiang; Han, Songjun; Wei, Zhongwang | |
通讯作者 | Tian, FQ |
来源期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2020 |
卷号 | 56期号:9 |
英文摘要 | The complementary principle, which was first proposed by Bouchet (1963), illustrates a complementary relationship among the actual evaporation, the potential evaporation, and the apparent potential evaporation. It has generated increasing attention for estimating evaporation by using only routinely observed meteorological variables (radiation, wind speed, air temperature, and humidity) without complex surface property parameters. However, this principle still poses great challenges because of the underlying uncertainties in estimating its critical parameter, namely, asymmetric parameterb. In this study, we adopted a sigmoid generalized complementary function and utilized the eddy covariance (EC) data from 217 sites around the world to determinebvalues in different ecosystems and their correlation with environmental factors. We foundbhas a mean value of 6.01 +/- 0.08. The asymmetric parameterbis small in dry regions (i.e., the desert ecosystem, 0.42 +/- 0.02) and increases as the land surface wetness improves. The ecosystem mean air temperature and vapor pressure deficit have negative correlations withb(Pearson correlation coefficients are -0.57 and -0.52, respectively), and the mean soil water content has a positive correlation withb(0.69). Besides, the sigmoid function has a favorable capability in estimating evaporation no matter based on the site-specificbvalues or the ecosystem meanbvalues. The ecosystem meanbvalues given in the current study also perform acceptably in the independent verifications, indicating these values can be applied extendedly for regional and global studies. |
英文关键词 | evaporation sigmoid generalized complementary function asymmetric parameter Priestley-Taylor coefficient ecosystem types environmental factors |
类型 | Article |
语种 | 英语 |
收录类别 | SCI-E |
WOS记录号 | WOS:000578452200057 |
WOS关键词 | ADVECTION-ARIDITY APPROACH ; EVAPO-TRANSPIRATION ; EVAPOTRANSPIRATION ; WATER ; MODEL ; MANAGEMENT ; RUNOFF ; CARBON ; PLANT ; SOIL |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
来源机构 | 清华大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/326795 |
作者单位 | [Wang, Liming; Tian, Fuqiang] Tsinghua Univ, Dept Hydraul Engn, State Key Lab Hydrosci & Engn, Beijing, Peoples R China; [Han, Songjun] China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing, Peoples R China; [Wei, Zhongwang] Sun Yat Sen Univ, Sch Atmospher Sci, Guangdong Prov Key Lab Climate Change & Nat Dis, Guangzhou, Peoples R China; [Wei, Zhongwang] Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Liming,Tian, Fuqiang,Han, Songjun,et al. Determinants of the Asymmetric Parameter in the Generalized Complementary Principle of Evaporation[J]. 清华大学,2020,56(9). |
APA | Wang, Liming,Tian, Fuqiang,Han, Songjun,&Wei, Zhongwang.(2020).Determinants of the Asymmetric Parameter in the Generalized Complementary Principle of Evaporation.WATER RESOURCES RESEARCH,56(9). |
MLA | Wang, Liming,et al."Determinants of the Asymmetric Parameter in the Generalized Complementary Principle of Evaporation".WATER RESOURCES RESEARCH 56.9(2020). |
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