A Radiometrically Precise Multi-Frequency Ice-Penetrating Radar Architecture
A Radiometrically Precise Multi-Frequency Ice-Penetrating Radar Architecture
复制标题
辐射精确的多频透冰雷达架构
DOI:
--
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发表时间:
2022
影响因子:
8.2
通讯作者:
D. Schroeder
中科院分区:
文献类型:
--
作者:
A. Broome;D. Schroeder
Ice-penetrating radar sounders are powerful geophysical tools for studying the englacial and subglacial conditions of Earth’s ice sheets. Data from these instruments is critical to enhancing understanding and modeling of ice-sheet dynamics and ice-sheet contributions to global sea level. Traditionally, ice-penetrating radar sounders have a single center frequency creating inherent ambiguity in their pulse-by-pulse received power due to the confounding effects of basal material and roughness. Interpreting ice-penetrating radar data in light of these ambiguities requires assumptions about the physical state of the ice sheet, large-scale empirical analyses, or ancillary data. Here, we demonstrate that a high radiometric fidelity, narrowband, multi-frequency radar sounder can overcome these issues by separating the frequency-dependent basal roughness signature from the frequency-independent basal material signature. We present a radar system architecture with three narrow frequency bands spaced orders of magnitude apart (center frequencies of 1, 10, and 100 MHz, each with 20% fractional bandwidth) and high radiometric resolution (±0.5 dB). This architecture will allow us to precisely constrain ice-sheet basal conditions on a pulse-by-pulse basis by disambiguating the effects of basal material and basal roughness in ice-penetrating radar data.
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影响因子:
2.9
作者:
Arnold, Emily;Leuschen, Carl;Rodriguez-Morales, Fernando;Li, Jilu;Paden, John;Hale, Richard;Keshmiri, Shawn
通讯作者:
Keshmiri, Shawn
DOI:
10.5194/tc-11-1247-2017
发表时间:
2017-05
期刊:
The Cryosphere
影响因子:
--
作者:
T. Jordan;M. Cooper;D. Schroeder;Christopher B. Williams;J. Paden;M. Siegert;J. Bamber
通讯作者:
T. Jordan;M. Cooper;D. Schroeder;Christopher B. Williams;J. Paden;M. Siegert;J. Bamber
影响因子:
1.7
作者:
Brennan, Paul V.;Lok, Lai Bun;Corr, Hugh
通讯作者:
Corr, Hugh
影响因子:
3.9
作者:
Chu, Winnie;Hilger, Andrew M.;Culberg, Riley;Schroeder, Dustin M.;Jordan, Thomas M.;Seroussi, Helene;Young, Duncan A.;Blankenship, Donald D.;Vaughan, David G.
通讯作者:
Vaughan, David G.
DOI:
10.5194/tc-10-1547-2016
发表时间:
2016
期刊:
The Cryosphere
影响因子:
--
作者:
Jordan T
通讯作者:
Jordan T