DOI: 10.1002/jgrd.50583
论文题名: Tree-ring-based snowfall record for cold arid western Himalaya, India since A.D. 1460
作者: Yadav R.R. ; Bhutiyani M.R.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 14 起始页码: 7516
结束页码: 7522
语种: 英语
英文关键词: Cedrus deodara
; cold arid
; India
; snow water equivalent
; tree rings
; western Himalaya
Scopus关键词: Arid regions
; Drought
; Snow
; Snow melting systems
; Soil moisture
; Soil surveys
; Trees (mathematics)
; Water resources
; Cedrus deodara
; cold arid
; Himalayas
; India
; Snow water equivalent
; Tree rings
; Forestry
; arid region
; moisture content
; reconstruction
; resource availability
; river flow
; snow cover
; snow water equivalent
; socioeconomic status
; tree ring
; Chenab River
; Himalayas
; Cedrus deodara
英文摘要: Understanding snowfall variations in high-elevation cold arid regions of the western Himalaya is important as snowmelt water is the main source of water to meet the scores of socioeconomic needs. The ground-based observational data, though limited to the last two decades, show decreasing snowfall, raising the concern of looming water scarcity in the region. The tree-ring data of Himalayan cedar from a network of six moisture-stressed sites, where snowmelt water is the sole source of soil moisture for tree growth, were used to develop the November-April snow water equivalent (SWE) extending back to A.D. 1460. The reconstruction revealed persistent severe droughts in the 1780s followed by the 1480s and relatively lesser magnitude droughts in the 1540s-1560s, 1740s, and early twentieth century. The pluvial conditions observed in 1948-1958 and 1986-1996 stand out over any other period of such duration. The SWE reconstruction revealed large-scale spatial coherence with the corresponding month's Palmer Drought Severity Index over the western Himalayan region. Significant relationship observed between SWE reconstruction and January-March Chenab River flow revealed its potential utility in understanding water resource availability in the long-term perspective. Key Points Tree-ring-based snow water equivalent data for western Himalaya Snowmelt water main hydrological resource Snowmelt water significantly associated with July flow of Chenab ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63549
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
There are no files associated with this item.
作者单位: Birbal Sahni Institute of Palaeobotany, 53 University Rd., Lucknow 226007, India; Snow Avalanche Study Establishment, Chandigarh, India
Recommended Citation:
Yadav R.R.,Bhutiyani M.R.. Tree-ring-based snowfall record for cold arid western Himalaya, India since A.D. 1460[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(14)