Some data sets specify dates using the year and day of year rather than the year, month, and day of month. The day of year (DOY) is the sequential day number starting with day 1 on January 1st. There ...

On September 19, Antarctic sea ice likely reached its annual maximum extent of 17.16 million square kilometers (6.63 million ...

Antarctic sea ice has likely reached its maximum extent for the year, at 17.16 million square kilometers (6.63 million square ...

Arctic sea ice likely reached its annual minimum extent of 4.28 million square kilometers (1.65 million square miles). The ...

Software engineer and metadata architect Julia Collins discusses how she came to NSIDC, and how she came to appreciate the ...

There are many ways to access and work with NSIDC data to accommodate a wide diversity of users. Use the filter menu to explore and narrow down your options. Note that the list defaults to show our ...

As a condition of using these data, you must cite the use of this data set. Such a practice gives credit to data set producers and advances principles of transparency and reproducibility. To promote ...

Arctic sea ice has likely reached its minimum extent for the year, at 4.28 million square kilometers (1.65 million square ...

As a condition of using these data, you must cite the use of this data set. Such a practice gives credit to data set producers and advances principles of transparency and reproducibility. To promote ...

As a condition of using these data, you must cite the use of this data set. Such a practice gives credit to data set producers and advances principles of transparency and reproducibility. To promote ...

As a condition of using these data, you must cite the use of this data set. Such a practice gives credit to data set producers and advances principles of transparency and reproducibility. To promote ...

Since 2007, the Arctic sea ice minimum has dropped below 5 million square kilometers (1.93 million square miles) every year, except in 2009, 2013, and 2014, when extent barely crossed the 5 million ...