中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
An Improved Method for Modeling Spatial Distribution of delta D in Surface Snow over Antarctic Ice Sheet

文献类型:期刊论文

作者Wang Yetang1; Hou Shugui1; Grigholm, Bjorn2; Song Linlin1
刊名CHINESE GEOGRAPHICAL SCIENCE
出版日期2009-06-01
卷号19期号:2页码:120-125
关键词delta D surface snow ice sheet Antarctica
ISSN号1002-0063
DOI10.1007/s11769-009-0120-2
通讯作者Wang Yetang(wangyetang@163.com)
英文摘要Using the recent compilation of the isotopic composition data of surface snow of Antarctic ice sheet, we proposed an improved interpolation method of delta D, which utilizes geographical factors (i.e., latitude and altitude) as the primary predictors and incorporates inverse distance weighting (IDW) technique. The method was applied to a high-resolution digital elevation model (DEM) to produce a grid map of multi-year mean delta D values with 1km spatial resolution for Antarctica. The mean absolute deviation between observed and estimated data in the map is about 5.4 parts per thousand, and the standard deviation is 9 parts per thousand. The resulting delta D pattern resembles well known characteristics such as the depletion of the heavy isotopes with increasing latitude and distance from coast line, but also reveals the complex topographic effects.
收录类别SCI
WOS关键词LAST INTERGLACIAL PERIOD ; DRONNING MAUD LAND ; ISOTOPIC COMPOSITION ; ATMOSPHERIC CIRCULATION ; METEORIC PRECIPITATION ; CLIMATE VARIABILITY ; WATER ISOTOPES ; CORE ; TEMPERATURE ; RECORD
WOS研究方向Environmental Sciences & Ecology
WOS类目Environmental Sciences
语种英语
WOS记录号WOS:000268207200004
出版者SPRINGER
URI标识http://www.irgrid.ac.cn/handle/1471x/2556173
专题寒区旱区环境与工程研究所
通讯作者Wang Yetang
作者单位1.Chinese Acad Sci, State Key Lab Cryospher Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
2.Univ Maine, Climate Change Inst, Orono, ME 04469 USA
推荐引用方式
GB/T 7714
Wang Yetang,Hou Shugui,Grigholm, Bjorn,et al. An Improved Method for Modeling Spatial Distribution of delta D in Surface Snow over Antarctic Ice Sheet[J]. CHINESE GEOGRAPHICAL SCIENCE,2009,19(2):120-125.
APA Wang Yetang,Hou Shugui,Grigholm, Bjorn,&Song Linlin.(2009).An Improved Method for Modeling Spatial Distribution of delta D in Surface Snow over Antarctic Ice Sheet.CHINESE GEOGRAPHICAL SCIENCE,19(2),120-125.
MLA Wang Yetang,et al."An Improved Method for Modeling Spatial Distribution of delta D in Surface Snow over Antarctic Ice Sheet".CHINESE GEOGRAPHICAL SCIENCE 19.2(2009):120-125.

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来源:寒区旱区环境与工程研究所

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