气候变化领域集成服务门户(CCPortal): Sulfur-containing species in a snow pit in the Lambert Glacier basin, East Antarctica

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	Sulfur-containing species in a snow pit in the Lambert Glacier basin, East Antarctica
	Sun, JY; Ren, JW; Qin, DH; Wang, XX
发表日期	1999
ISSN	0260-3055
起始页码	84
结束页码	88
卷号	29
英文摘要	A 2.7 m snow pit was sampled in the Lambert Glacier basin, about 650 km from the coast. Concentrations of methanesulfonic acid (MSA) and non-sea-salt SO42- (nssSO(4)(2-)) show distinct variation with depth in the snow pit. The seasonal variation of MSA is used to date the snow-pit samples. MSA concentration is in the range 1.9-22.0 mu g kg(-1) with a mean of 7.0 mu g kg(-1). The mean nssSO(4)(2-) concentration is 41.5 mu g kg(-1) with a range of 0-87 mu g kg(-1). The nssSO(4)(2-) concentration was calculated by subtracting the sea-salt sulfate contribution using Na+ as a conservative tracer. The nssSO(4)(2-) contributes about 80% of the total sulfate in the snow pit. The mean mass ratio of MSA to nssSO(4)(2-), 0.176, is much higher than that measured in the low to mid-latitudes, but is very close to the ratio in snow at the South Pole. El Chichon and Hudson volcanic eruptions do not significantly perturb the nssSO(4)(2-) concentrations at this site. MSA concentrations are anticorrelated with sea-ice area for the South Indian Ocean sector between 40 degrees and 90 degrees E, suggesting enhanced MSA production accompanying low sea-ice coverage.
WOS研究方向	Geochemistry & Geophysics ; Physical Geography
WOS类目	Geochemistry & Geophysics ; Geography, Physical
来源期刊	ANNALS OF GLACIOLOGY, VOL 29, 1999
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158771
作者单位	Sun, JY (corresponding author), Chinese Acad Sci, Lanzhou Inst Glaciol & Geocryol, Lab Ice Core & Cold Reg Environm, Lanzhou 730000, Gansu, Peoples R China.
推荐引用方式 GB/T 7714	Sun, JY,Ren, JW,Qin, DH,et al. Sulfur-containing species in a snow pit in the Lambert Glacier basin, East Antarctica[J],1999,29.
APA	Sun, JY,Ren, JW,Qin, DH,&Wang, XX.(1999).Sulfur-containing species in a snow pit in the Lambert Glacier basin, East Antarctica.ANNALS OF GLACIOLOGY, VOL 29, 1999,29.
MLA	Sun, JY,et al."Sulfur-containing species in a snow pit in the Lambert Glacier basin, East Antarctica".ANNALS OF GLACIOLOGY, VOL 29, 1999 29(1999).