Snow features on sea ice in the western Arctic Ocean during summer 2016
作者机构：Chinese Antarctic Center of Surveying and MappingWuhan UniversityWuhanPeople’s Republic of China Polar Research of ChinaShanghaiPeople’s Republic of China
出 版 物：《International Journal of Digital Earth》 (国际数字地球学报（英文）)
年 卷 期：2021年第14卷第10期
页 面：1397-1410页
核心收录：
基 金：supported by the National Key Research and Development Program of China:[grant number 2017YFA0603104],[grant number 2018YFA0605903] the Special Fund for High Resolution Images Surveying and Mapping Application:[grant number 42-Y30B04-9001-19/21] the National Natural Science Foundation of China:[grant number 42076235]
主 题：Snow cover snow grain size snow stratigraphy remote sensing
摘 要：Arctic sea ice and its snow cover are important components of the cryosphere and the climate system.A series of in situ snow measurements were conducted during the seventh Chinese Arctic expedition in summer 2016 in the western Arctic *** this study,we made an analysis of snow features on Arctic sea ice based on in situ observations and the satellite-derived parameter of snow grain size from MODIS spectral reflectance *** indicate that snow depth on Arctic sea ice varied between 19 and 241 mm,with a mean value of 100 *** mean density of the snow was 340.4 kg/m^(3)during the expedition,which was higher than that reported in previous *** measurements revealed that a depth hoar layer was widely developed in the snow,accounting for 30%∼50%of the total snow *** equivalent snow grain size was small on the surface and large at the bottom in snow *** average relative error between MODIS-derived snow grain size and in situ measured surface snow grain size is 14.6%,indicating that remote sensing is a promising method to obtain large-scale information of snow grain size on Arctic sea ice.
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