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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? - 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.
NSIDC scientists provide Arctic Sea Ice News & Analysis, with partial support from NASA. 
