Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016JD026418 |
The spectral and chemical measurement of pollutants on snow near South Pole, Antarctica | |
Casey, K. A.1,2,3; Kaspari, S. D.4; Skiles, S. M.5; Kreutz, K.6,7; Handley, M. J.6 | |
2017-06-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Remote sensing of light-absorbing particles (LAPs), or dark colored impurities, such as black carbon (BC) and dust on snow, is a key remaining challenge in cryospheric surface characterization and application to snow, ice, and climate models. We present a quantitative data set of in situ snow reflectance, measured and modeled albedo, and BC and trace element concentrations from clean to heavily fossil fuel emission contaminated snow near South Pole, Antarctica. Over 380 snow reflectance spectra (350-2500nm) and 28 surface snow samples were collected at seven distinct sites in the austral summer season of 2014-2015. Snow samples were analyzed for BC concentration via a single particle soot photometer and for trace element concentration via an inductively coupled plasma mass spectrometer. Snow impurity concentrations ranged from 0.14 to 7000part per billion (ppb) BC, 9.5 to 1200ppb sulfur, 0.19 to 660ppb iron, 0.013 to 1.9 ppb chromium, 0.13 to 120ppb copper, 0.63 to 6.3ppb zinc, 0.45 to 82parts per trillion (ppt) arsenic, 0.0028 to 6.1ppb cadmium, 0.062 to 22ppb barium, and 0.0044 to 6.2ppb lead. Broadband visible to shortwave infrared albedo ranged from 0.85 in pristine snow to 0.62 in contaminated snow. LAP radiative forcing, the enhanced surface absorption due to BC and trace elements, spanned from <1Wm(-2) for clean snow to similar to 70Wm(-2) for snow with high BC and trace element content. Measured snow reflectance differed from modeled snow albedo due to specific impurity-dependent absorption features, which we recommend be further studied and improved in snow albedo models. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000405514000026 |
WOS关键词 | LIGHT-ABSORBING IMPURITIES ; BLACK-CARBON ; ICE-CORE ; GRAIN-SIZE ; TRACE-ELEMENT ; RADIATIVE-TRANSFER ; POLLUTION AMOUNT ; MINERAL DUST ; HEAVY-METAL ; ALBEDO |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/32256 |
专题 | 气候变化 |
作者单位 | 1.Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20742 USA; 2.NASA, Goddard Space Flight Ctr, Cryospher Sci Lab, Greenbelt, MD 20771 USA; 3.US Geol Survey, Land Remote Sensing Program, 959 Natl Ctr, Reston, VA 22092 USA; 4.Cent Washington Univ, Dept Geol Sci, Ellensburg, WA USA; 5.Univ Utah, Dept Geog, Salt Lake City, UT USA; 6.Univ Maine, Sch Earth & Climate Sci, Orono, ME USA; 7.Univ Maine, Climate Change Inst, Orono, ME USA |
推荐引用方式 GB/T 7714 | Casey, K. A.,Kaspari, S. D.,Skiles, S. M.,et al. The spectral and chemical measurement of pollutants on snow near South Pole, Antarctica[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(12). |
APA | Casey, K. A.,Kaspari, S. D.,Skiles, S. M.,Kreutz, K.,&Handley, M. J..(2017).The spectral and chemical measurement of pollutants on snow near South Pole, Antarctica.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(12). |
MLA | Casey, K. A.,et al."The spectral and chemical measurement of pollutants on snow near South Pole, Antarctica".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.12(2017). |
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