Ice climatology of the Arctic and Antarctic
Dansk version
The Arctic Today
Climate and Weather
- Mean temperatures
  North of 80N

- Arctic weather
  North of 60N

- Ice Extent in the
  Northern Hemisphere

- Minimum Ice Extent
  since 1979

- Monthly mean Sea Ice
  Extent since 1979

Satellite Products
- Sea ice drift and-
  sea ice concentration

- Sea Surface temp. and
  anomalies

- Ice temperatures
Climatological Sea Ice Atlas
Ice concentration
Monthly means
Monthly variations
Ice extent
Monthly
Download ice edges
Break-up, freeze-up and open water days
Mean
Variation
Trend (significance)
Model Products
- Ice thickness and volume
- Ice and Ocean Forecasts
Seaice & Navigation
- Satellite Images
  around Greenland



On top of the maps contours are drawn indicating the confidence of the statistics (larger is better). Since the sea ice does not retreat and expand completely every year, not all areas experience the same number of freeze-ups and break-ups over an equal period of years. Therefore, some areas may experience relatively few freeze-ups and break-ups, thus reducing the confidence in the statistics of the area. This is illustrated by the contours overlayed the plots, indicating the percentage of years the statistic was able to be estimated from. In addition, only areas having more than 6 samples are considered for statistical robustness.

What is ice concentration?

Arctic


Days of open water
Freeze-up date
Break-up date

Antarctic


Days of open water
Freeze-up date
Break-up date


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