气候变化领域集成服务门户(CCPortal): Iron in the Sargasso Sea

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.738263
	Iron in the Sargasso Sea
	Sedwick; Peter; Church; T M; Bowie; Andrew R; Marsay; Christopher M; Ussher; S J; Achilles; K M; Lethaby; P J; Johnson; Rodney J; Sarin; Manmohan M; McGillicuddy; Dennis
发布日期	2005-05-19
数据集类型	dataset
英文关键词	ironclimatology
英文简介	We report iron measurements for water column and aerosol samples collected in the Sargasso Sea during July-August 2003 (summer 2003) and April-May 2004 (spring 2004). Our data reveal a large seasonal change in the dissolved iron (dFe) concentration of surface waters in the Bermuda Atlantic Time-series Study region, from ~1-2 nM in summer 2003, when aerosol iron concentrations were high (mean 10 nmol/m3), to ~0.1-0.2 nM in spring 2004, when aerosol iron concentrations were low (mean 0.64 nmol/m3). During summer 2003, we observed an increase of ~0.6 nM in surface water dFe concentrations over 13 days, presumably due to eolian iron input; an estimate of total iron deposition over this same period suggests an effective solubility of 3-30% for aerosol iron. Our summer 2003 water column profiles show potentially growth-limiting dFe concentrations (0.02-0.19 nM) coinciding with a deep chlorophyll maximum at 100-150 m depth, where phytoplankton biomass is typically dominated by Prochlorococcus during late summer.
空间范围	Median Latitude: 31.254222 * Median Longitude: -64.603333 * South-bound Latitude: 30.966667 * West-bound Longitude: -65.550000 * North-bound Latitude: 31.433333 * East-bound Longitude: -63.400000
时间范围	2003-07-24T00:00:00 - 2004-04-30T00:00:00
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/226934
推荐引用方式 GB/T 7714	Sedwick,Peter,Church,et al. Iron in the Sargasso Sea.2005-05-19.https://doi.org/10.1594/PANGAEA.738263.