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dc.contributor.authorWillatt, Rosemary
dc.contributor.authorStroeve, Julienne
dc.contributor.authorNandan, Vishnu
dc.contributor.authorNewman, Thomas
dc.contributor.authorMallett, Robbie
dc.contributor.authorHendricks, Stefan
dc.contributor.authorRicker, Robert
dc.contributor.authorMead, James
dc.contributor.authorItkin, Polona
dc.contributor.authorTonboe, Rasmus
dc.contributor.authorWagner, David N.
dc.contributor.authorSpreen, Gunnar
dc.contributor.authorListon, Glen
dc.contributor.authorSchneebeli, Martin
dc.contributor.authorKrampe, Daniela
dc.contributor.authorTsamados, Michel
dc.contributor.authorDemir, Oguz
dc.contributor.authorWilkinson, Jeremy
dc.contributor.authorJaggi, Matthias
dc.contributor.authorZhou, Lu
dc.contributor.authorHuntemann, Marcus
dc.contributor.authorRaphael, Ian A.
dc.contributor.authorJutila, Arttu
dc.contributor.authorOggier, Marc
dc.date.accessioned2023-12-06T08:03:41Z
dc.date.available2023-12-06T08:03:41Z
dc.date.issued2023-10-18
dc.description.abstractSnow 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 r<sup>2</sup> values up to 0.77. Mean snow depths agreed within 1 cm, 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 r<sup>2</sup> 0.15 or lower. r<sup>2</sup> 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.en_US
dc.identifier.citationWillatt, Stroeve, Nandan, Newman, Mallett, Hendricks, Ricker, Mead, Itkin, Tonboe, Wagner, Spreen, Liston, Schneebeli, Krampe, Tsamados, Demir, Wilkinson, Jaggi, Zhou, Huntemann, Raphael, Jutila, Oggier. Retrieval of Snow Depth on Arctic Sea Ice From Surface-Based, Polarimetric, Dual-Frequency Radar Altimetry. Geophysical Research Letters. 2023;50(20)en_US
dc.identifier.cristinIDFRIDAID 2186163
dc.identifier.doi10.1029/2023GL104461
dc.identifier.issn0094-8276
dc.identifier.issn1944-8007
dc.identifier.urihttps://hdl.handle.net/10037/31946
dc.language.isoengen_US
dc.publisherWileyen_US
dc.relation.journalGeophysical Research Letters
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/101003826/EU/Climate relevant interactions and feedbacks: the key role of sea ice and snow in the polar and global climate system/CRiceS/en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/ 730965/EU/Arctic Research Icebreaker Consortium: A strategy for meeting the needs for marine-based research in the Arctic/ARICE/en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2023 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleRetrieval of Snow Depth on Arctic Sea Ice From Surface-Based, Polarimetric, Dual-Frequency Radar Altimetryen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Med mindre det står noe annet, er denne innførselens lisens beskrevet som Attribution 4.0 International (CC BY 4.0)