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Algorithm for Flat First-Year Ice Draft Using AMSR2 Data in the Arctic Ocean

Cited 1 time in wos
Cited 2 time in scopus

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dc.contributor.authorE., Yoshizawa-
dc.contributor.authorK., Shimada-
dc.contributor.authorCho, Kyoung-Ho-
dc.date.accessioned2020-10-19T08:45:29Z-
dc.date.available2020-10-19T08:45:29Z-
dc.date.issued2018-11-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/10854-
dc.description.abstractFirst-year ice has replaced multiyear ice in the Northern Sea Route area since 2008. In this area, sea ice survival during summer substantially depends on first-year ice thickness at melt onset, and thus monitoring of first-year ice thickness in the freezing period is a key to forecasting sea ice distributions in the following summer. In this paper, we introduce a new algorithm to estimate flat first-year ice draft using brightness temperature data measured by the Advanced Microwave Scanning Radiometer-2 (AMSR2). The algorithm uses a gradient ratio (GR) of 18- and 36-GHz vertically polarized brightness temperatures based on decreases in sea ice emissivity in higher AMSR2 frequency channels with thermodynamic growth associated with increase in volume scattering. Such spectral characteristics of the emissivity are examined by comparing GR values with flat first-year ice draft extracted by mode values of in situ draft data measured by a moored ice profiling sonar. The accuracy of the daily draft estimated from GR values after applying proper noise filters is about 10 cm for a draft range of 0.4-1.2 m.en_US
dc.languageEnglishen_US
dc.language.isoenen_US
dc.subjectEngineeringen_US
dc.subjectMeteorology & Atmospheric Sciencesen_US
dc.subject.classificationAraonen_US
dc.titleAlgorithm for Flat First-Year Ice Draft Using AMSR2 Data in the Arctic Oceanen_US
dc.title.alternative북극해에서의 AMSR2 관측자료를 이용한 일년빙 두께 추정 알고리즘 개발en_US
dc.typeArticleen_US
dc.identifier.bibliographicCitationE., Yoshizawa, K., Shimada, Cho, Kyoung-Ho. 2018. "Algorithm for Flat First-Year Ice Draft Using AMSR2 Data in the Arctic Ocean". <em>JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY</em>, 35(1): 2147-2157.-
dc.citation.titleJOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGYen_US
dc.citation.volume35en_US
dc.citation.number1en_US
dc.identifier.doi10.1175/JTECH-D-18-0034.1-
dc.citation.startPage2147en_US
dc.citation.endPage2157en_US
dc.description.articleClassificationSCI-
dc.description.jcrRateJCR 2016:21.4285714285714en_US
dc.subject.keywordMicrowave observationsen_US
dc.subject.keywordAlgorithmsen_US
dc.subject.keywordSatellite observationsen_US
dc.identifier.localId2018-0203-
dc.identifier.scopusid2-s2.0-85057128861-
dc.identifier.wosid000448364200002-
Appears in Collections  
2018-2019, Korea-Arctic Ocean Observing System(K-AOOS) (18-19) / Kang, Sung-Ho (PM18040)
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