ASSIMILATION OF HIGH-RESOLUTION ICE CHARTS IN A COUPLED OCEAN-SEA-ICE MODEL

被引：0
|
作者：
Fritzner, Sindre [1 ]
Graversen, Rune [1 ]
Christensen, Kai [2 ,3 ]
Wang, Keguang [2 ,3 ]
机构：
[1] UIT Arctic Univ Norway, Inst Phys & Technol, Tromso, Norway
[2] MET Norway, Oslo, Norway
[3] MET Norway, Tromso, Norway
来源：
2019 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS 2019) | 2019年
关键词：
Sea-ice; data assimilation; DEnKF; Ice chart; SYSTEM;
D O I：
10.1109/igarss.2019.8898221
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
In this study, we show assimilation results from a coupled ocean sea-ice model. The model has a horizontal resolution of 2.5 km. In the assimilation system, we assimilate high-resolution ice charts, structured on a 1 km grid. We compare the assimilation of passive microwave observations with the assimilation of ice charts. It is shown that the ice charts have a larger impact on the assimilation system than the passive microwave observations. In addition, a few results from the assimilation system with ice charts are shown. These indicate improvements for the assimilation system assimilating ice charts compared to a free-run without assimilation and an assimilation system assimilating passive microwave observations.
引用
收藏
页码：4214 / 4217
页数：4
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