AMSR-E/AMSR2 Arctic sea ice concentration（DT-ASI）

Data introduction

Sea Ice Concentration (SIC) based on AMSR-E/AMSR2 orbital brightness temperature data inversion. Key Laboratory of Polar Ocean Process and Global Ocean Change (POGOC), Ocean University of China, Ministry of Education, Physical Ocean Key Laboratory (POL) development. The sea ice intensity inversion algorithm is a dynamic Tie point ASI algorithm (referred to as DT-ASI algorithm) developed on the basis of the ABS algorithm of Bremen University (UB) in Germany. Compared with the ASI algorithm, the new algorithm introduces pure ice and pure water point values with time, and the algorithm is used to remove the cloud and water vapor from the cyclone and other weather systems. influences. Daily data products include Arctic sea ice concentration SIC, Sea Ice Extent (SIE) and Sea Ice Area (SIA). The analysis data includes the SIE, SIA time series based on AMSR-E/AMSR2 data, the sea ice concentration distribution of the maximum/minimum sea ice range day of the AMSR2 period, and the comparison of this product with similar products.

Arctic quasi-real-time sea ice concentration (6.25km)

	the data shows： time span: AMSR-E: June 1, 2002 - October 4, 2011 AMSR2: July 2, 2012 to the present Time resolution: 1 day Spatial resolution: 6.25km × 6.25km (Polar three-dimensional grid)
Arctic sea ice concentration distribution	Arctic sea ice range

Historical data

Sea ice range/area

*Note: We only count the value of sea ice concentration greater than 15%

Arctic sea ice range time series  from 2002 to 2018		Arctic sea ice area
Seasonal variation of sea ice extent  during AMSR-E		Seasonal variation of sea ice extent  during AMSR2
Seasonal variation of sea ice area  during AMSR-E		Seasonal variation of sea ice area  during AMSR2

Sea ice concentration distribution over the largest sea ice range over the years (AMSR2 period)

Sea ice concentration distribution on the minimum sea ice range over the years (AMSR2 period)

Compared with similar products

海Sea ice range difference

Data download

Sea ice concentration and images:

AMSR-E,AMSR2

Other ancillary data:经纬度网格；The sea ice intensity product inversion of the 6.25km grid ASI algorithm can be downloaded at https://seaice.uni-bremen.de/data

Reference

If you use the relevant data on this website to publish articles or publications, please acknowledge and quote the following articles:

Hao G, Su J. A study on the dynamic tie points ASI algorithm in the Arctic Ocean[J]. ActaOceanologicaSinica, 2015,   34(11): 126-135

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Contact information

sujie@ouc.edu.cn Jie Su