Arid
DOI10.1002/hyp.9276
Analysis of satellite-based and in situ hydro-climatic data depicts water storage depletion in North China Region
Moiwo, Juana Paul1; Tao, Fulu1; Lu, Wenxi2
通讯作者Tao, Fulu
来源期刊HYDROLOGICAL PROCESSES
ISSN0885-6087
EISSN1099-1085
出版年2013
卷号27期号:7页码:1011-1020
英文摘要

Water storage depletion is an increasing hydrological threat to agricultural production and social stability across the globe. It is fast approaching threshold levels especially in arid/semiarid regions with low precipitation and excessive evapotranspiration (ET). This study analyses water storage dynamics in the North China Region (NCR) an important grain-production base in China. It uses monthly Gravity Recovery and Climate Experiment (GRACE), Global Land Data Assimilation System (GLDAS) and field-measured precipitation data products for 20022009. The datasets are analysed in a basin-scale water balance equation to determine the state of storage in the NCR study area. Based on the validated satellite-based data products with field-measured values, average error/bias in the datasets is <10%. The analysis also shows favourable agreements among the GRACE-derived and flux-based storage changes at various temporal scales. Whereas the amplitudes and phases of the precipitation and ET fluxes are largely stable for 20022009, those of GLDAS runoff and GRACE total water storage anomaly apparently narrow out. The linear trends in the monthly, seasonal and annual storage changes are negative for the study period, suggesting storage loss. There is an apparent seasonality of storage change in the study area; with summer storage gain, winter storage loss and an overall storage loss that is on the average of 16.8mm/yr. Storage loss is most severe in the central floodplain region (the main irrigated production zone) of the study area. Storage depletion in this important agro-based semi-arid region could have negative implications for the millions of people in the region and beyond in terms of water supply, crop production, food security and social stability. Copyright (c) 2012 John Wiley & Sons, Ltd.


英文关键词North China Region GRACE GLDAS evapotranspiration excess storage depletion
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000316568000005
WOS关键词TIME-VARIABLE GRAVITY ; LAND-SURFACE MODEL ; HAI RIVER-BASIN ; MASS VARIATIONS ; RUNOFF DECLINE ; GRACE ; RECOVERY ; IMPACT ; ASSIMILATION ; RESOURCES
WOS类目Water Resources
WOS研究方向Water Resources
来源机构中国科学院地理科学与资源研究所
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/177522
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China;
2.Jilin Univ, Coll Environm & Resources, Changchun 130021, Jilin, Peoples R China
推荐引用方式
GB/T 7714
Moiwo, Juana Paul,Tao, Fulu,Lu, Wenxi. Analysis of satellite-based and in situ hydro-climatic data depicts water storage depletion in North China Region[J]. 中国科学院地理科学与资源研究所,2013,27(7):1011-1020.
APA Moiwo, Juana Paul,Tao, Fulu,&Lu, Wenxi.(2013).Analysis of satellite-based and in situ hydro-climatic data depicts water storage depletion in North China Region.HYDROLOGICAL PROCESSES,27(7),1011-1020.
MLA Moiwo, Juana Paul,et al."Analysis of satellite-based and in situ hydro-climatic data depicts water storage depletion in North China Region".HYDROLOGICAL PROCESSES 27.7(2013):1011-1020.
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