Inter-comparison and evaluation of Arctic sea ice type products
Abstract - 1.32 × 10 6 0.49 × 10 6 2. Among them, KNMI-SITY and Zhang-SITY in the QuikSCAT (QSCAT) period (2002–2009) agree best with NSIDC-SIA and perform the best, with the smallest bias of - 0.001 × 10 6 2 in first-year ice (FYI) extent and - 0.02 × 10 6 2 in MYI extent. In the Advanced Scatterometer (ASCAT) period (2007–2019), KNMI-SITY tends to overestimate MYI (especially in early winter), whereas Zhang-SITY and IFREMER-SITY tend to underestimate MYI. C3S-SITY performs well in some early winter cases but exhibits large temporal variabilities like OSISAF-SITY. Factors that could impact performances of the SITY products are analysed and summarized. (1) The Ku-band scatterometer generally performs better than the C-band scatterometer for SITY discrimination, while the latter sometimes identifies FYI more accurately, especially when surface scattering dominates the backscatter signature. (2) A simple combination of scatterometer and radiometer data is not always beneficial without further rules of priority. (3) The representativeness of training data and efficiency of classification are crucial for SITY classification. Spatial and temporal variation in characteristic training datasets should be well accounted for in the SITY method. (4) Post-processing corrections play important roles and should be considered with caution.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Inter-comparison and evaluation of Arctic sea ice type products ; volume:17 ; number:1 ; year:2023 ; pages:279-308 ; extent:30
The Cryosphere ; 17, Heft 1 (2023), 279-308 (gesamt 30)
- Urheber
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Ye, Yufang
Luo, Yanbing
Sun, Yan
Shokr, Mohammed
Aaboe, Signe
Girard-Ardhuin, Fanny
Hui, Fengming
Cheng, Xiao
Chen, Zhuoqi
- DOI
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10.5194/tc-17-279-2023
- URN
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urn:nbn:de:101:1-2023033008171757647422
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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14.08.2025, 10:47 MESZ
Datenpartner
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Beteiligte
- Ye, Yufang
- Luo, Yanbing
- Sun, Yan
- Shokr, Mohammed
- Aaboe, Signe
- Girard-Ardhuin, Fanny
- Hui, Fengming
- Cheng, Xiao
- Chen, Zhuoqi
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