globalchange  > 气候变化与战略
DOI: 10.5194/tc-14-2809-2020
论文题名:
Brief communication: Mapping Greenland's perennial firn aquifers using enhanced-resolution L-band brightness temperature image time series
作者: Miller J.Z.; Long D.G.; Jezek K.C.; Johnson J.T.; Brodzik M.J.; Shuman C.A.; Koenig L.S.; Scambos T.A.
刊名: Cryosphere
ISSN: 19940416
出版年: 2020
卷: 14, 期:9
起始页码: 2809
结束页码: 2817
语种: 英语
英文关键词: aquifer ; brightness temperature ; firn ; image analysis ; mapping method ; spectral resolution ; time series analysis ; Arctic ; Greenland
英文摘要: Enhanced-resolution L-band brightness temperature (TB) image time series generated from observations collected over the Greenland Ice Sheet by NASA's Soil Moisture Active Passive (SMAP) satellite are used to map Greenland's perennial firn aquifers from space. Exponentially decreasing L-band TB signatures are correlated with perennial firn aquifer areas identified via the Center for Remote Sensing of Ice Sheets (CReSIS) Multi-Channel Coherent Radar Depth Sounder (MCoRDS) that was flown by NASA's Operation IceBridge (OIB) campaign. An empirical algorithm to map extent is developed by fitting these signatures to a set of sigmoidal curves. During the spring of 2016, perennial firn aquifer areas are found to extend over ∼ 66 000 km2. © 2020 Author(s).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164538
Appears in Collections:气候变化与战略

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作者单位: Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States; Earth Science and Observation Center, University of Colorado, Boulder, CO, United States; Department of Electrical and Computer Engineering, Brigham Young University, Provo, UT, United States; Byrd Polar and Climate Research Center, Ohio State University, Columbus, OH, United States; Department of Electrical and Computer Engineering, Ohio State University, Columbus, OH, United States; National Snow and Ice Data Center, University of Colorado, Boulder, CO, United States; University of Maryland, Baltimore County, Joint Center for Earth Systems Technology at Code 615, Cryospheric Sciences Laboratory, Nasa Goddard Space Flight Center, Greenbelt, MD, United States

Recommended Citation:
Miller J.Z.,Long D.G.,Jezek K.C.,et al. Brief communication: Mapping Greenland's perennial firn aquifers using enhanced-resolution L-band brightness temperature image time series[J]. Cryosphere,2020-01-01,14(9)
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