DOI: 10.1002/2016GL068675
论文题名: Remote detection of water management impacts on evapotranspiration in the Colorado River Basin
作者: Castle S.L. ; Reager J.T. ; Thomas B.F. ; Purdy A.J. ; Lo M.-H. ; Famiglietti J.S. ; Tang Q.
刊名: Geophysical Research Letters
ISSN: 0094-9597
EISSN: 1944-9328
出版年: 2016
卷: 43, 期: 10 起始页码: 5089
结束页码: 5097
语种: 英语
英文关键词: Colorado River Basin
; evapotranspiration
; GRACE
; land surface models
; water budget
; water management
Scopus关键词: Budget control
; Climate models
; Evapotranspiration
; Geodetic satellites
; Image reconstruction
; Radiometers
; Reservoir management
; Reservoirs (water)
; Rivers
; Satellites
; Surface measurement
; Water management
; Watersheds
; Anthropogenic influence
; Colorado River Basin
; GRACE
; Gravity recovery and climate experiments
; Land surface models
; Moderate resolution imaging spectroradiometer satellites
; Regional evapotranspiration
; Water budget
; Water resources
英文摘要: The complexity involved in accurate estimation and numerical simulation of regional evapotranspiration (ET) can lead to inconsistency among techniques, usually attributed to methodological deficiencies. Here we hypothesize instead that discrepancies in ET estimates should be expected in some cases and can be applied to measure the effect of anthropogenic influences in developed river basins. We compare an ensemble of corrected ET estimates from land surface models with Gravity Recovery and Climate Experiment and Moderate Resolution Imaging Spectroradiometer satellite-based estimates in the intensively managed Colorado River Basin to contrast the roles of natural variability and human impacts. Satellite-based approaches yield larger annual amplitudes in ET estimates than land surface model simulations, primarily during the growing season. We find a total satellite-based ET flux of 142 ± 7 MAF yr−1 (175 ± 8.63 km3 yr−1), with 38% due to anthropogenic influences during summer months. We evaluate our estimates by comparison with reservoir storage and usage allotment components of the basin water management budget. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84971280804&doi=10.1002%2f2016GL068675&partnerID=40&md5=70b56d1239104fc5102158b2913a0fe5
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10560
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: UC Center for Hydrologic Modeling, University of California, Irvine, CA, United States
Recommended Citation:
Castle S.L.,Reager J.T.,Thomas B.F.,et al. Remote detection of water management impacts on evapotranspiration in the Colorado River Basin[J]. Geophysical Research Letters,2016-01-01,43(10).