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《Geospatial Information》 2018-06
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Estimation of Thin Ice Thickness in the Ross Ice Shelf Polynya Based on AMSR-E Data

LIU Ziyuan;  
In this study, we developed an algorithm for thin ice thickness in the Ross Ice Shelf Polynya(RISP) by comparing the polarization ratio of 36 GHz and 89 GHz advanced microwave scanning radiometer earth observing system(AMSR-E) data and thermal ice thickness respectively. The thermal ice thickness was estimated from a heat budget calculation on the upper surface of snow or ice from the clear-sky moderate-resolution imaging spectroradiometer(MODIS) surface temperature product(MOD29) and ERA-interim forcing data. For improving accuracy of the algorithm, the following 4 kind of pixels were removed, containing both ice shelf and ocean, mixing different ice type, the ice concentration were lower than 80%, and the 89 GHz pixels which were contaminated by water vapor. We developed two exponentially algorithms for 36 GHz and 89 GHz AMSR-E polarization ratio data, and the RMSE are 0.003 5 and 0.005 3 meter. Using this algorithm, we could calculate the thin ice thickness in the RISP in 0~0.2 m.
【Fund】: 国家重点研发计划课题(2016YFC1402704);; 国家自然科学基金面上基金资助项目(41576188);国家自然科学基金青年基金资助项目(41606215)
【CateGory Index】: P715.7;P731.15
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