the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Inter-comparison and evaluation of sea ice type concentration algorithms
Abstract. Sea ice has been monitored in terms of concentration and types with microwave satellite observations since the late 1970s. However, it remains an open question as to which sea ice type concentration (SITC) method is most appropriate for ice type distribution and hence climate monitoring. This paper presents key results of inter-comparison and evaluation for eight SITC methods. The SITC methods were inter-compared with two sea ice age (SIA) and three sea ice type (SIT) products using microwave radiometer and scatterometer data from 2000 to 2015. Their performances were evaluated quantitatively with samples that are used for generating tie points, and qualitatively with the RADARSAT imagery. The methods that combined scatterometer and radiometer data have overall better performances on ice type discrimination. The best methods are ECICE-QSCAT-2 for the years 2000–2009 and ECICE-ASCAT for 2009–2015, both using scatterometer data along with radiometer data. Although the SIA and SIT products are fairly good datasets for delineating ice type distributions, the SITC methods are better on preserving details like varied concentration of different ice types and work better under specific sea ice conditions, for instance, homogeneous sea ice regions with little artifact for SIA algorithms to track.
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RC1: 'Formal review of the paper', Anonymous Referee #1, 09 Dec 2019
- AC1: 'Reply to Referees', Yufang Ye, 11 Feb 2020
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RC2: 'Review of “Inter-comparison and evaluation of sea ice type concentration algorithms” by Ye et al.', Anonymous Referee #2, 20 Dec 2019
- AC2: 'Reply to Referees', Yufang Ye, 11 Feb 2020
-
RC1: 'Formal review of the paper', Anonymous Referee #1, 09 Dec 2019
- AC1: 'Reply to Referees', Yufang Ye, 11 Feb 2020
-
RC2: 'Review of “Inter-comparison and evaluation of sea ice type concentration algorithms” by Ye et al.', Anonymous Referee #2, 20 Dec 2019
- AC2: 'Reply to Referees', Yufang Ye, 11 Feb 2020
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Cited
4 citations as recorded by crossref.
- Statistical Modeling of Arctic Sea Ice Concentrations for Northern Sea Route Shipping D. Wu et al. 10.3390/app13074374
- Arctic Multiyear Ice Areal Flux and Its Connection with Large-Scale Atmospheric Circulations in the Winters of 2002–2021 H. Kuang et al. 10.3390/rs14153742
- First results of Antarctic sea ice type retrieval from active and passive microwave remote sensing data C. Melsheimer et al. 10.5194/tc-17-105-2023
- Inter-comparison and evaluation of Arctic sea ice type products Y. Ye et al. 10.5194/tc-17-279-2023