气候变化领域集成服务门户(CCPortal): Physical oceanography and meteorological measurements in Potter Cove, King George Island, West Antarctic Peninsula during austral summer 2010/2011

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.871606
	Physical oceanography and meteorological measurements in Potter Cove, King George Island, West Antarctic Peninsula during austral summer 2010/2011
	Monien; Donata; Monien; Patrick; Brünjes; Robert; Widmer; Tatjana; Kappenberg; Arne; Silva-Busso; Adrian A; Schnetger; Bernhard; Brumsack; Hans-Jürgen
发布日期	2017-02-03
数据集类型	dataset
英文简介	Recent rapid retreat of glacial front lines and the loss of land ice along the Antarctic margins may play an important role in exporting suspended particulate matter (SPM) potentially rich in bioavailable (defined as ascorbate leachable) iron (FeA) to coastal areas of the Southern Ocean. Sediment ablation is an additional source of iron for this high-nutrient low-chlorophyll region. In Potter Cove, King George Island, meltwater streams discharge up to 18 000 mg/l (average 283 mg/l) of slightly weathered, finely ground bedrock particles into coastal waters during the summer. Approximately 15% of this SPM is exported within a low-salinity surface plume into Bransfield Strait. Based on our data, an estimated 12 mg/m2/yr of FeA is exported from the South Shetland Island land surface (ice-free and subglacial areas) to the surrounding coastal waters. Extrapolated to an area of 2.5x104 km2, this FeA input is comparable to the contribution from icebergs and c. 240-fold higher than aeolian input via dust. An observed rise in local sediment accumulation rates suggests that glacial erosion has been increasing over recent decades and that (sub-)glacially derived SPM is becoming more important as a source of iron to the Southern Ocean.
空间范围	Median Latitude: -62.897852 * Median Longitude: -58.645408 * South-bound Latitude: -63.230000 * West-bound Longitude: -58.712743 * North-bound Latitude: -62.225590 * East-bound Longitude: -58.630000
时间范围	2010-01-02T12:00:00 - 2011-12-31T12:00:00
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/215349
推荐引用方式 GB/T 7714	Monien,Donata,Monien,et al. Physical oceanography and meteorological measurements in Potter Cove, King George Island, West Antarctic Peninsula during austral summer 2010/2011.2017-02-03.https://doi.org/10.1594/PANGAEA.871606.