MMAB Sea Ice Analysis Page

A satellite we use in constructing the sea ice analyses is overage and now providing poor data. This has corrupted the analysis. We are working on getting better data, but this may not be a speedy process. When we have confidence in a newer process, it will be announced here. In the mean time, though figures will continue to be produced, they cannot be relied upon as formerly. 25 February 2009

High Resolution Ice

Current High Resolution Ice Analyses

Global
Northern Hemisphere
Great Lakes
Laurentian Lakes and Hudson Bay
Sea of Okhotsk and Sea of Japan
Southern Hemisphere

Historic Information (High Resolution)

Global
Great Lakes
Great Bear and Great Slave Lakes

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Old Resolution Today's Ice
Interpreting the Images
How the ice grids are constructed
Details on the regional images

The current sea ice state is important for both modeling efforts, such as the sea ice model and the global weather model, and for sea ice analysts, such as at the Anchorage WSFO. Consequently we produce two sorts of field. One is suitable for use by models, the global field. And the other is suitable for use by an analyst. The analyst can apply intelligence and additional data sources to produce a superior final product in his area of responsibility.

For suggestions on the interpretation of these images, please click on the word advice here. For more detail on the source of the images, select the 'about' link below. For much more detail on the data source, quality control, and processing methods, see the Automated Passive Microwave Analysis ... document.

Sea ice history and climatology information, including animations of the ice cover, is at http://polar.ncep.noaa.gov/seaice/Historical.html

The Northern Hemisphere and Southern Hemisphere ice concentration images are live maps. If you select a point on these images, you'll get a magnified image of the region for about 550 km (300 nautical miles) around that point. The orientation of the maps may be different from the full hemisphere image. Please click here for an explanation.

Please e-mail errors or additional analysis sites to Robert.Grumbine@noaa.gov

Last Modified 25 February 2009


Most Recent NCEP Automated Ice Concentration Fields

Interpreting the Images
concentration color bargif of the Alaska Region map
Previous Alaska Region Maps
NCEP MMAB Interactive Sea Ice Image Generation
Animation Alaska Region
Sea of Okhotsk and Sea of Japan - current figure
concentration color bargif of the Northern Hemisphere map
Click on a point in the northern hemisphere map to get a magnified view of ice in that vicinity.
Animated Northern Hemisphere
NCEP MMAB Interactive Sea Ice Image Generation

concentration color bar gif of the Southern Hemisphere map
Click on a point in the southern hemisphere map to get a magnified view of ice in that vicinity.

Global ice cover as used for numerical weather, wave, and ocean prediction.
Global map with missing data filled in

Sea Ice Daily Analyses and Images


More about the sea ice group
Links to other polar work
Return to main sea ice page
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Return to Marine Modeling and Analysis Branch main page
Reciprocal Links -- pages that reference the MMAB sea ice page, so might also be of interest
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