气候变化领域集成服务门户(CCPortal): Brief communication: An empirical relation between center frequency and measured thickness for radar sounding of temperate Glaciers

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DOI	10.5194/tc-15-2569-2021
	Brief communication: An empirical relation between center frequency and measured thickness for radar sounding of temperate Glaciers
	MacGregor J.A.; Studinger M.; Arnold E.; Leuschen C.J.; Rodríguez-Morales F.; Paden J.D.
发表日期	2021
ISSN	19940416
起始页码	2569
结束页码	2574
卷号	15 期号:6
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.
英文关键词	empirical analysis; glacier; instrumentation; radar; scattering; survey method; temperate environment
语种	英语
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/202367
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
推荐引用方式 GB/T 7714	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],2021,15(6).
APA	MacGregor J.A.,Studinger M.,Arnold E.,Leuschen C.J.,Rodríguez-Morales F.,&Paden J.D..(2021).Brief communication: An empirical relation between center frequency and measured thickness for radar sounding of temperate Glaciers.Cryosphere,15(6).
MLA	MacGregor J.A.,et al."Brief communication: An empirical relation between center frequency and measured thickness for radar sounding of temperate Glaciers".Cryosphere 15.6(2021).