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Retrieval of Snow D...
Retrieval of Snow Depth on Arctic Sea Ice From Surface-Based, Polarimetric, Dual-Frequency Radar Altimetry
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Willatt, Rosemary (author)
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Stroeve, Julienne C. (author)
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Nandan, Vishnu (author)
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Newman, Thomas (author)
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Mallett, Robbie (author)
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Hendricks, Stefan (author)
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Ricker, Robert (author)
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Mead, James (author)
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Itkin, Polona (author)
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Tonboe, Rasmus (author)
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Wagner, David N. (author)
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Spreen, Gunnar (author)
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Liston, Glen (author)
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Schneebeli, Martin (author)
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Krampe, Daniela (author)
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Tsamados, Michel (author)
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Demir, Oguz (author)
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Wilkinson, Jeremy (author)
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Jaggi, Matthias (author)
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- Zhou, Lu, 1993 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences
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Huntemann, Marcus (author)
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Raphael, Ian A. (author)
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Jutila, Arttu (author)
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Oggier, Marc (author)
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: Geophysical Research Letters. - 0094-8276 .- 1944-8007. ; 50:20
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https://doi.org/10.1...
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Abstract
Subject headings
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- Snow depth on sea ice is an Essential Climate Variable and a major source of uncertainty in satellite altimetry-derived sea ice thickness. During winter of the MOSAiC Expedition, the “KuKa” dual-frequency, fully polarized Ku- and Ka-band radar was deployed in “stare” nadir-looking mode to investigate the possibility of combining these two frequencies to retrieve snow depth. Three approaches were investigated: dual-frequency, dual-polarization and waveform shape, and compared to independent snow depth measurements. Novel dual-polarization approaches yielded r2 values up to 0.77. Mean snow depths agreed within 1cm, even for data sub-banded to CryoSat-2 SIRAL and SARAL AltiKa bandwidths. Snow depths from co-polarized dual-frequency approaches were at least a factor of four too small and had a r2 0.15 or lower. r2 for waveform shape techniques reached 0.72 but depths were underestimated. Snow depth retrievals using polarimetric information or waveform shape may therefore be possible from airborne/satellite radar altimeters.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Oceanografi, hydrologi och vattenresurser (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Oceanography, Hydrology and Water Resources (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
Keyword
- altimetry
- climate
- polarimetric
- radar
- sea ice
- snow
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Willatt, Rosemar ...
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Stroeve, Julienn ...
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Nandan, Vishnu
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Newman, Thomas
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Mallett, Robbie
-
Hendricks, Stefa ...
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show more...
-
Ricker, Robert
-
Mead, James
-
Itkin, Polona
-
Tonboe, Rasmus
-
Wagner, David N.
-
Spreen, Gunnar
-
Liston, Glen
-
Schneebeli, Mart ...
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Krampe, Daniela
-
Tsamados, Michel
-
Demir, Oguz
-
Wilkinson, Jerem ...
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Jaggi, Matthias
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Zhou, Lu, 1993
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Huntemann, Marcu ...
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Raphael, Ian A.
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Jutila, Arttu
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Oggier, Marc
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Oceanography Hyd ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Climate Research
- Articles in the publication
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Geophysical Rese ...
- By the university
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University of Gothenburg