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Hydrological Variability in the Arid Region of Northwest China from 2002 to 2013
المؤلفون المشاركون
Cao, Yanping
Nan, Zhuotong
Cheng, Guodong
Zhang, Ling
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-13، 13ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-03-29
دولة النشر
مصر
عدد الصفحات
13
التخصصات الرئيسية
الملخص EN
The arid region of Northwest China (ANC) has a distinct and fragile inland water cycle.
This study examined the hydrological variations in ANC and its three subregions from August 2002 to December 2013 by integrating terrestrial water storage (TWS) anomaly data derived from the Gravity Recovery and Climate Experiment (GRACE) satellite, soil moisture data modeled by the Global Land Data Assimilation System, and passive microwave snow water equivalent data.
The results show that the TWS in ANC increased at a rate of 1.7 mm/a over the past decade, which consisted of an increasing trend of precipitation (0.12 mm/a).
Spatially, in the northern ANC, TWS exhibited a significant decreasing trend of −3.64 mm/a (p<0.05) as a result of reduced rainfall, increased glacial meltwater draining away from the mountains, and intensified human activities.
The TWS in southern and eastern ANC increased at a rate of 2.14 (p=0.10) and 1.63 (p<0.01) mm/a, respectively.
In addition to increasing precipitation and temperature, decreasing potential evapotranspiration in Southern Xinjiang and expanding human activities in Hexi-Alashan together led to an overall increase in TWS.
Increased glacier meltwater and permafrost degradation in response to climate warming may also affect the regional TWS balance.
The variations in soil moisture, groundwater, and surface water accounted for the majority of the TWS anomalies in southern and eastern ANC.
The proposed remote sensing approach combining multiple data sources proved applicable and useful to understand the spatiotemporal characteristics of hydrological variability in a large area of arid land without the need for field observations.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Cao, Yanping& Nan, Zhuotong& Cheng, Guodong& Zhang, Ling. 2018. Hydrological Variability in the Arid Region of Northwest China from 2002 to 2013. Advances in Meteorology،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1118609
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Cao, Yanping…[et al.]. Hydrological Variability in the Arid Region of Northwest China from 2002 to 2013. Advances in Meteorology No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1118609
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Cao, Yanping& Nan, Zhuotong& Cheng, Guodong& Zhang, Ling. Hydrological Variability in the Arid Region of Northwest China from 2002 to 2013. Advances in Meteorology. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1118609
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1118609
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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