Data Announcements

This new data set of image and shapefiles provides estimates of Arctic sea ice extent and concentration from 1901 to 1956 created from a collection of historic, hand-drawn sea ice charts from the Danish Meteorological Institute (DMI). The original DMI charts are based on compiled observations of ice conditions reported by a variable network of national organizations, shore-based observers, scientific expeditions, and ships.

NASA IceBridge ATM L2 Icessn Elevation, Slope, and Roughness data for 2013 Arctic are now available from NSIDC. For documentation, and to access the data, see the IceBridge ATM L2 data catalog page.

Notice to Users of AMSR-E, ICESat/GLAS, IceBridge, MODIS and NISE Data. The FTP location for accessing AMSR-E, ICESat/GLAS, IceBridge, MODIS, and NISE data changed in October from n4ftl01u.ecs.nasa.gov to n5eil01u.ecs.nsidc.org. Redirects that were previously put in place for users connecting to n4ftl01u.ecs.nasa.gov were removed. Users connecting to our FTP through a script or through an FTP download program should change the host name to n5eil01u.ecs.nasa.gov in order to continue retrieving data.

NASA IceBridge Narrow Swath ATM L1B Elevation and Return Strength data for 2013 Arctic are now available from NSIDC. For documentation, and to access the data, see the IceBridge Narrow Swath ATM L1B Elevation and Return Strength data catalog page.

Some of the most beautiful natural features on Earth -- glaciers -- are changing right before our eyes. Many glaciers look remarkably different today than they did even 100 years ago. For those of you interested in monitoring these changes, wouldn’t it be nifty to have photographs of the same glacier, taken from the same vantage point and at the same time of year, but taken many years apart? Well, we’ve got a whole collection of them, featuring 45 sets of repeat photographs of glaciers taken from 1880 to 2009 in the USA, Peru, and Australia.

New browse images are now available for download for the North and South Polar projections of the Nimbus High Resolution Infrared Radiometer Remapped Digital Data Daily L3, HDF5 (NmHRIR3H) data set. The relative size of the continent outlines has been corrected in these images.

NASA Aquarius Level-2 and Level-3 Soil Moisture data are now available from NSIDC. Learn more about the NSIDC DAAC Aquarius data collection.

NASA IceBridge WISE L2 Ice Thickness and Surface Elevation data for 2013 Alaska are now available from NSIDC. This data set contains depth sounder measurements of elevation, surface, bottom, and thickness for Alaska taken from the Warm Ice Sounding Explorer (WISE). For documentation, and to access the data, see the IceBridge WISE L2 Ice Thickness and Surface Elevation landing page. Data Set DOI: https://doi.org/10.5067/0ZBRL3GY720R

NASA IceBridge ATM L1B Elevation and Return Strength data for 2013 Arctic are now available from NSIDC. For documentation, and to access the data, see the IceBridge ATM L1B Elevation and Return Strength data catalog page.

USGS glaciologist Bruce Molnia is a science advisor and contributor to the Roger G. Barry Archives and Resource Center (ARC) at NSIDC Glacier Photograph Collection. On Friday, 29 November, he was interviewed by The Weather Channel and spoke to the importance of photographs for conveying information about changing climate. Dr. Molnia used the historic Glacier Photograph Collection at ARC for some of his research. 

This climate data record (CDR) is a collection of observations from 1947 to 2012 of Arctic sea-ice draft, freeboard, and thickness. Existing observations of sea-ice thickness span a variety of methods, accuracies, and temporal and spatial scales and are archived in a variety of different locations and in different formats.

How do I differentiate between sea ice data sets? Which ones have file formats that are easy for me to use? How many ice velocity data sets are offered at NSIDC? What are my options for downloading the data? NSIDC has been busily working to develop a Web tool to answer these questions and more. The new Scientific Data Search aims to help you discover the data sets most useful to you. This new tool replaces the previous NSIDC data set search tool. It is recommended for those who would like to explore the breadth of NSIDC's data holdings.

NASA IceBridge CMG 1A Dynamic Gravity Meter Time-Tagged L1B Vertical Accelerations data for 2012 Antarctica are now available from NSIDC. For documentation, and to access the data, see the IceBridge CMG 1A Dynamic Gravity Meter L1B data catalog page.

NSIDC is pleased to announce that the Polar Pathfinder Daily 25 km EASE-Grid Sea Ice Motion Vectors data set has been updated to Version 2. Version 2 includes updated data through 31 December 2012 for both hemispheres.

Data users can now download global composites of the earliest known satellite-based digital infrared observations of Earth. Nimbus High Resolution Infrared Radiometer Remapped Digital Data Daily L3, HDF5, constructed by the NASA-funded Nimbus Data Rescue Project, expands the team's data roster with daily composites of HRIR data recorded in 1964, 1966, and 1969 by the Nimbus 1, Nimbus 2, and Nimbus 3 satellites.

NASA IceBridge DMS L1B Geolocated and Orthorectified Images for 2013 Arctic are now available from NSIDC. For documentation, and to access the data, see the IceBridge DMS L1B data set landing page.

Thanks to the the NASA-funded Nimbus Data Rescue Project, users can now download daily composites of the best images recovered from the Nimbus 1, 2, and 3 missions that spanned 1964 - 1970.

The Nimbus Data Rescue Project has released its third data set: Nimbus High Resolution Infrared Radiometer Digital Swath Data Level 1.

Reprocessing is complete and updated data are now available through 31 December 2012 for all Sea Ice Trends and Sea Ice Trends and Climatologies from SMMR and SSM/I-SSMIS data sets. With this update, the following changes have been implemented:

Investigators Eric Rignot, Jeremie Mouginot, and Bernd Scheuchl have added a 450 m resolution map to their "MEaSUREs InSAR-Based Antarctica Ice Velocity Map" data set. NSIDC offers these data as part of NASA's Making Earth System Data Records for Use in Research Environments (MEaSUREs) program. Visit the data set landing page for more information and to obtain the data.