气候变化领域集成服务门户(CCPortal): Meteorological synoptical observations from Neumayer Station, 1981-03 to 2011-12, reference list of 372 datasets

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.810182
	Meteorological synoptical observations from Neumayer Station, 1981-03 to 2011-12, reference list of 372 datasets
	Klöwer; Milan; Jung; Thomas; König-Langlo; Gert; Semmler; Tido
发布日期	2013-04-13
数据集类型	dataset
英文简介	ERA-Interim reanalysis data and data of the Hadley Centre Global Environmental Model version 2 (HadGEM2) are compared with continuous meteorological observations of near-surface wind and temperature carried out for more than 30 years at Neumayer station, situated on the Ekstro¨m Ice Shelf of Antarctica. Significant temperature correlations between Neumayer climate and the climate of both the interior of the Antarctic continent and oceanic regions north of Neumayer are investigated using observational data and model data. Mean sea level pressure fluctuations at Neumayer can be connected to changes in the Southern Annular Mode (SAM). Shortcomings in the ERA-Interim reanalysis data with spurious trends of up to 7 C over 31 years are identified at several places in Antarctica. Furthermore, it is shown that katabatic winds in both the ERA-Interim reanalysis data and in the HadGEM2 climate model are underrepresented in frequency and speed, presumably due to the problems in representing topography in these relatively coarse resolution models. This may be one reason for the positive 2m air temperature bias of 3 C in the models at Neumayer station. The results of this study reemphasize that climatic trends in regions with a low station density can not be assessed solely from model data. Thus, it is absolutely necessary to maintain polar observatories such as Neumayer station to quantify climate change over the Southern Ocean and Antarctica.
空间范围	Latitude: -70.650000 * Longitude: -8.250000
时间范围	1992-01-01T00:00:00 - 1992-01-01T00:00:00
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/234870
推荐引用方式 GB/T 7714	Klöwer,Milan,Jung,et al. Meteorological synoptical observations from Neumayer Station, 1981-03 to 2011-12, reference list of 372 datasets.2013-04-13.https://doi.org/10.1594/PANGAEA.810182.