Snow accumulation and its moisture origin over Dome Argus, Antarctica (SCI)

CORC > 寒区旱区环境与工程研究所 > 中科院寒区旱区环境与工程研究所（未分类） > 期刊论文

	Snow accumulation and its moisture origin over Dome Argus, Antarctica (SCI)
	Wang Y. T. ; Sodemann H. ; Hou S. G. ; Masson-Delmotte V. ; Jouzel J. ; Pang H. X.
刊名	Climate Dynamics
	2013
卷号	40 页码:731-742
ISSN号	ISBN/0930-7575
英文摘要	The spatial and temporal variability of snow accumulation near Dome Argus, Antarctica, is assessed using new snow pit and stake measurement data together with existing snow pit, ice core and automatic weather station records. Snow accumulation rate shows large inter-annual variations, but stable multi-decadal levels over the last seven centuries. Spatial variations in snow accumulation within the space of 50 km of Dome Argus are relatively small, probably thanks to the smooth topography. A comparison of theses accumulation observations with ECMWF reanalyses (ERA-40 and ERA-Interim) suggests ECMWF reanalysis captures the seasonal variations, but underestimates the overall snow accumulation at Dome Argus by similar to 50 %. The moisture sources for precipitation over Dome Argus are examined by means of a Lagrangian moisture source diagnostic, based on the tracing of specific humidity changes along air parcel trajectories, for the period 2000-2004 using operational ECMWF analysis data. Dome Argus mainly receives moisture from the mid-latitude (46 +/- A 4A degrees S) South Indian Ocean, with a seasonal latitudinal shift of about 6A degrees. Compared to other central East Antarctic deep ice core sites such as Dome F, Dome C, Vostok, and EPICA Dronning Maud Land, Dome Argus has a more southerly moisture origin, probably due to topographic influences on the moisture transport paths. These results have important implications for the interpretation of future ice cores at Dome Argus.
收录类别	(SCI)
公开日期	2014-12-19
内容类型	期刊论文
源URL	[http://ir.casnw.net/handle/362004/23151]
专题	寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文
推荐引用方式 GB/T 7714	Wang Y. T.,Sodemann H.,Hou S. G.,et al. Snow accumulation and its moisture origin over Dome Argus, Antarctica (SCI)[J]. Climate Dynamics,2013,40:731-742.
APA	Wang Y. T.,Sodemann H.,Hou S. G.,Masson-Delmotte V.,Jouzel J.,&Pang H. X..(2013).Snow accumulation and its moisture origin over Dome Argus, Antarctica (SCI).Climate Dynamics,40,731-742.
MLA	Wang Y. T.,et al."Snow accumulation and its moisture origin over Dome Argus, Antarctica (SCI)".Climate Dynamics 40(2013):731-742.