DOI: 10.1016/j.gloplacha.2014.11.001
论文题名: Can mountain glacier melting explains the GRACE-observed mass loss in the southeast Tibetan Plateau: From a climate perspective?
作者: Song C. ; Ke L. ; Huang B. ; Richards K.S.
刊名: Global and Planetary Change
ISSN: 0921-8181
出版年: 2015
卷: 124 起始页码: 1
结束页码: 9
语种: 英语
英文关键词: Climate variability
; Glacier
; Satellite altimetry
; Satellite gravimetry
; Tibetan Plateau
; Water balance
Scopus关键词: Aneroid altimeters
; Budget control
; Climate change
; Digital storage
; Glaciers
; Gravimeters
; Gravitation
; Landforms
; Satellites
; Climate variability
; Satellite altimetry
; Satellite gravimetries
; Tibetan Plateau
; Water balance
; Geodetic satellites
; climate change
; cryosphere
; glacier mass balance
; GRACE
; hydrological modeling
; melting
; satellite altimetry
; water budget
; water storage
; China
; Qinghai-Xizang Plateau
英文摘要: The southeast Tibetan Plateau (SETP) includes the majority of monsoonal temperate glaciers in High Mountain Asia (HMA), which is an important source of water for the upper reaches of several large Asian river systems. Climatic change and variability has substantial impacts on cryosphere and hydrological processes in the SETP. The Gravity Recovery and Climate Experiment (GRACE) gravimetry observations between 2003 and 2009 suggest that there was an average mass loss rate of - 5.99 ± 2.78. Gigatonnes (Gt)/yr in this region. Meanwhile, the hydrological data by model calculations from the GLDAS/Noah and CPC are used to estimate terrestrial water storage (TWS) changes with a slight negative trend of about - 0.3. Gt/yr. The recent studies (Kääb et al., 2012; Gardner et al., 2013) reported the thinning rates of mountain glaciers in HMA based on the satellite laser altimetry, and an approximate estimation of the glacier mass budget in the SETP was 4.69 ± 2.03. Gt/yr during 2003-2009. This estimate accounted for a large proportion (~. 78.3%) of the difference between the GRACE TWS and model-calculated TWS changes. To better understand the cause of sharp mass loss existing in the SETP, the correlations between key climatic variables (precipitation and temperature) and the GRACE TWS changes are examined at different timescales between 2003 and 2011. The results show that precipitation is the leading factors of abrupt, seasonal and multi-year undulating signals of GRACE TWS anomaly time series, but with weak correlations with the inter-annual trend and annual mass budget of GRACE TWS. In contrast, the annual mean temperature is tightly associated with the annual net mass budget (r. = 0.81, p. <. 0.01), which indirectly suggests that the GRACE-observed mass loss in the SETP may be highly related to glacial processes. © 2014 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84911201774&doi=10.1016%2fj.gloplacha.2014.11.001&partnerID=40&md5=b15d97706ee717443eaca3a95ea94fbf
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11578
Appears in Collections: 全球变化的国际研究计划 气候变化与战略
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作者单位: Department of Geography and Resource Management, The Chinese University of Hong Kong, Hong Kong
Recommended Citation:
Song C.,Ke L.,Huang B.,et al. Can mountain glacier melting explains the GRACE-observed mass loss in the southeast Tibetan Plateau: From a climate perspective?[J]. Global and Planetary Change,2015-01-01,124.