globalchange  > 气候变化与战略
DOI: 10.5194/tc-15-2569-2021
论文题名:
Brief communication: An empirical relation between center frequency and measured thickness for radar sounding of temperate Glaciers
作者: MacGregor J.A.; Studinger M.; Arnold E.; Leuschen C.J.; Rodríguez-Morales F.; Paden J.D.
刊名: Cryosphere
ISSN: 19940416
出版年: 2021
卷: 15, 期:6
起始页码: 2569
结束页码: 2574
语种: 英语
英文关键词: empirical analysis ; glacier ; instrumentation ; radar ; scattering ; survey method ; temperate environment
英文摘要: Radar sounding of the thickness of temperate glaciers is challenged by substantial volume scattering, surface scattering and high attenuation rates. Lower-frequency radar sounders are often deployed to mitigate these effects, but the lack of a global synthesis of their success limits progress in system and survey design. Here we extend a recent global compilation of glacier thickness measurements (GlaThiDa) with the center frequency for radar-sounding surveys. From a maximum reported thickness of ∼ 1500 m near 1 MHz, the maximum thickness sounded decreases by ∼ 500 m per frequency decade. Between 25–100 MHz, newer airborne radar sounders generally outperform older, ground-based ones. Based on globally modeled glacier thicknesses, we conclude that a multi-element, ≤ 30 MHz airborne radar sounder could survey most temperate glaciers more efficiently. © Author(s) 2021.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164745
Appears in Collections:气候变化与战略

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作者单位: Cryospheric Sciences Laboratory (Code 615), NASA Goddard Space Flight Center, Greenbelt, MD 20771, United States; Aerospace Engineering Dept., The University of Kansas, Lawrence, KS 66045, United States; Center for Remote Sensing of Ice Sheets, The University of Kansas, Lawrence, KS 66045, United States

Recommended Citation:
MacGregor J.A.,Studinger M.,Arnold E.,et al. Brief communication: An empirical relation between center frequency and measured thickness for radar sounding of temperate Glaciers[J]. Cryosphere,2021-01-01,15(6)
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