Arid
DOI10.1016/j.cageo.2011.03.008
ArcE: A GIS tool for modelling actual evapotranspiration
Espana, Salvador1; Alcala, Francisco J.2,3; Vallejos, Angela1; Pulido-Bosch, Antonio1
通讯作者Espana, Salvador
来源期刊COMPUTERS & GEOSCIENCES
ISSN0098-3004
EISSN1873-7803
出版年2011
卷号37期号:9页码:1468-1475
英文摘要

This paper introduces ArcE, a GIS tool for modelling actual evapotranspiration (E-A) from an undefined number of meteorological stations. From daily data of precipitation and temperature, ArcE uses ArcObjects as the programming language to incorporate equations and hydrological boundary conditions, in order to calculate E-A at monthly and yearly time steps. Because weather data are often missing, ArcE is programmed to use non-global models such as Hargreaves for potential evapotranspiration (E-P) and Budyko for E-A. In arid regions, where results from global and non-global models are expected to deviate, ArcE allows for the segregation of low-divergent areas suitable for interpolating E-A from those that should be excluded for mapping the variable. In the semiarid Almanzora River basin, a heterogeneous region with contrasting climate in SE Spain, divergence in lowlands with a higher aridity index was about 15% with respect to an accurate estimate of E-A from the Penman-Monteith equation. Evaluating E-A is a first step for mapping the non-evaporative fraction of precipitation as the difference in P and E-A. (C) 2011 Elsevier Ltd. All rights reserved.


英文关键词Actual evapotranspiration GIS ArcObjects Semiarid climate SE Spain
类型Article
语种英语
国家Spain ; Portugal
收录类别SCI-E
WOS记录号WOS:000295201500027
WOS关键词WATER-BALANCE ; SPATIAL VARIABILITY ; RECHARGE ; VEGETATION ; CLIMATE ; RUNOFF ; SCALES
WOS类目Computer Science, Interdisciplinary Applications ; Geosciences, Multidisciplinary
WOS研究方向Computer Science ; Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/167659
作者单位1.Univ Almeria, Dept Hidrogeol, Almeria 04120, Spain;
2.Inst Super Tecn, Geosyst Ctr CVRM, P-1049001 Lisbon, Portugal;
3.CSIC, EEZA, Almeria 04120, Spain
推荐引用方式
GB/T 7714
Espana, Salvador,Alcala, Francisco J.,Vallejos, Angela,et al. ArcE: A GIS tool for modelling actual evapotranspiration[J],2011,37(9):1468-1475.
APA Espana, Salvador,Alcala, Francisco J.,Vallejos, Angela,&Pulido-Bosch, Antonio.(2011).ArcE: A GIS tool for modelling actual evapotranspiration.COMPUTERS & GEOSCIENCES,37(9),1468-1475.
MLA Espana, Salvador,et al."ArcE: A GIS tool for modelling actual evapotranspiration".COMPUTERS & GEOSCIENCES 37.9(2011):1468-1475.
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