气候变化领域集成服务门户(CCPortal): 30 years of synoptic observations from Neumayer Station with links to datasets

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.804156
	30 years of synoptic observations from Neumayer Station with links to datasets
	Rimbu; Norel; Lohmann; Gerrit; König-Langlo; Gert; Necula; Cristian; Ionita; Monica
发布日期	2012-12-13
数据集类型	dataset
英文简介	High temporal resolution (three hours) records of temperature, wind speed and sea level pressure recorded at Antarctic research station Neumayer (70°S, 8°W) during 1982–2011 are analysed to identify oscillations from daily to intraseasonal timescales. The diurnal cycle dominates the three-hourly time series of temperature during the Antarctic summer and is almost absent during winter. In contrast, the three-hourly time series of wind speed and sea level pressure show a weak diurnal cycle. The dominant pattern of the intraseasonal variability of these quantities, which captures the out-of-phase variation of temperature and wind speed with sea level pressure, shows enhanced variability at timescales of ~ 40 days and ~ 80 days, respectively. Correlation and composite analysis reveal that these oscillations may be related to tropical intraseasonal oscillations via large-scale eastward propagating atmospheric circulation wave-trains. The second pattern of intraseasonal variability, which captures in-phase variations of temperature, wind and sea level pressure, shows enhanced variability at timescales of ~ 35, ~ 60 and ~ 120 days. These oscillations are attributed to the Southern Annular Mode/Antarctic Oscillation (SAM/AAO) which shows enhanced variability at these timescales. We argue that intraseasonal oscillations of tropical climate and SAM/AAO are related to distinct patterns of climate variables measured at Neumayer.
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/217602
推荐引用方式 GB/T 7714	Rimbu,Norel,Lohmann,et al. 30 years of synoptic observations from Neumayer Station with links to datasets.2012-12-13.https://doi.org/10.1594/PANGAEA.804156.