J Coast Disaster Prev > Volume 4(3); 2017 > Article
Journal of Coastal Disaster Prevention 2017;4(3):133-137.
DOI: https://doi.org/10.20481/kscdp.2017.4.133    Published online July 30, 2017.
Recent Trends of Sea Ice in the Arctic Ocean and Northern Sea Route as of July 2017
Ahmed Harun-Al-Rashid, Chan-Su Yang
북극해와 북해에서의 해빙 관련 최신 동향(2017년 7월까지)
하룬 알 러쉬드 아메드, 양찬수
 
Abstract
The Arctic region remains surrounded by sea ice during most of the period of the year. In the Arctic Ocean the Northern Sea Route (NSR) has been used as an important route for shipping. The arctic sea ice is decreasing since 1979; hence needs to be monitored. In this research work sea ice concentration in the recent years and sea ice concentration anomalies of few months with long term sea ice concentration are studied. The climatology of long term ice concentration data from various satellites, and the recent sea ice concentration data from Advanced Microwave Scanning Radiometer 2 (AMSR2) were used. The results show that sea ice concentration and sea ice extent in the Arctic region decreased by around 5% from 2015 to 2016, but in 2017 increased again in smaller amount in some areas like around Novaya Zemlya, and parts of the sea in between Greenland and Longyearbyen, and around Banks Island. The percentages of sea ice area in NSR for July 7 in 2015 to 2017 were 37%, 39% and 33%, respectively, indicating a large area (around ten thousand km 2 ) become ice free in 2017 compared to the previous year.
Key Words: Sea ice concentration; Northern Sea Route (NSR); Advanced Microwave Scanning Radiometer 2 (AMSR2)
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