气候变化领域集成服务门户(CCPortal): High resolution isotope and Mg/Ca record of sediment core GeoB12615-4

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.829473
	High resolution isotope and Mg/Ca record of sediment core GeoB12615-4
	Romahn; Sarah; Mackensen; Andreas; Groeneveld; Jeroen; Pätzold; Jürgen
发布日期	2014-02-12
数据集类型	dataset
英文简介	The importance of intermediate water masses in climate change and ocean circulation has been emphasized recently. In particular, Southern Ocean Intermediate Waters (SOIW), such as Antarctic Intermediate Water and Subantarctic Mode Water, are thought to have acted as active interhemispheric transmitter of climate anomalies. Here we reconstruct changes in SOIW signature and spatial and temporal evolution based on a 40 kyr time series of oxygen and carbon isotopes as well as planktic Mg/Ca based thermometry from Site GeoB12615-4 in the western Indian Ocean. Our data suggest that SOIW transmitted Antarctic temperature trends to the equatorial Indian Ocean via the "oceanic tunnel" mechanism. Moreover, our results reveal that deglacial SOIW carried a signature of aged Southern Ocean deep water. We find no evidence of increased formation of intermediate waters during the deglaciation.
空间范围	Latitude: -7.138333 * Longitude: 39.840833
时间范围	2008-02-16T11:08:00 - 2008-02-16T11:08:00
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/233552
推荐引用方式 GB/T 7714	Romahn,Sarah,Mackensen,et al. High resolution isotope and Mg/Ca record of sediment core GeoB12615-4.2014-02-12.https://doi.org/10.1594/PANGAEA.829473.