气候变化领域集成服务门户(CCPortal): The TA192A water stable isotope and chemical firn core records , Adélie Land, Antarctica

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.896623
	The TA192A water stable isotope and chemical firn core records , Adélie Land, Antarctica
	Goursaud; Sentia; Masson-Delmotte; Valerie; Favier; Vincent; Preunkert; Suzanne; Legrand; Michel R; Minster; B
发布日期	2018-12-11
数据集类型	dataset
英文简介	A new 21.3m firn core was drilled in 2015 at a coastal Antarctic high accumulation site in Adélie Land (66.78°S; 139.56°E, 602ma.s.l.). The core was dated by annual layers counting based on non-sea-salt sulfate and methanesulfonate summer peaks, refined by a comparison between the reconstructed surface mass balance (hereafter, SMB) and the closest available stake data. The mean reconstructed SMB of 75.2 ± 15.0cmw.e. y−1 is consistent with local stake data, and remarkably high for coastal East Antarctica. The resulting inter-annual and sub-annual variations in isotopic records (δ18O and deuterium excess, hereafter d-excess) are explored for 1998–2014 and are systematically compared with a couple of climatic time series: an updated database of Antarctic surface snow isotopic composition, SMB stake data, meteorological observations from Dumont d'Urville station, sea-ice concentration based on passive microwave satellite data, precipitation outputs of atmospheric reanalyses, climate and water stable isotope outputs from the atmospheric general circulation model ECHAM5-wiso, as well as air mass origins diagnosed using 5-days back-trajectories.
空间范围	Latitude: -66.780000 * Longitude: 139.560000
语种	英语
国家	国际
学科大类	气候变化
学科子类	冰冻圈
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/213699
推荐引用方式 GB/T 7714	Goursaud,Sentia,Masson-Delmotte,et al. The TA192A water stable isotope and chemical firn core records , Adélie Land, Antarctica.2018-12-11.https://doi.org/10.1594/PANGAEA.896623.