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Scientists blog from Antarctica and provide a glimpse of what it's like to do research in the field. 
What's hot in the news around climate and sea ice and what are scientists talking about now?
Sea ice processing is currently down. NSIDC is investigating the issue and upgrading software to address it. We will post new data as soon as the software upgrades are implemented.
- View additional years by clicking the dates in the legend.
- Roll your cursor over the line to see daily sea ice extent values.
- Zoom in to any area on the chart by clicking and dragging your mouse.
- To see a corresponding daily sea ice concentration image, click on a line in the chart. Sea ice extent is derived from sea ice concentration. Images are not available for the average or standard deviation.
- When reusing Charctic images or data, please credit “National Snow and Ice Data Center.”
- Currently, some functions do not work in Internet Explorer. We recommend using a different browser.
- For more information about the data, see About Charctic data.
- If you have questions or problems, please contact NSIDC User Services at nsidc@nsidc.org.
