Data Announcements

NSIDC DAAC Updates Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent

25 August 2016

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has updated the Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent data set to a Version 4.1 because the input data to this data set, Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data, was updated.

Data Set DOI: : http://dx.doi.org/10.5067/P7O0HGJLYUQU

NSIDC DAAC Updates DMSP SSM/I-SSMIS Pathfinder Daily EASE-Grid Brightness Temperatures, Version 2

25 August 2015

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is pleased to announce that the DMSP SSM/I-SSMIS Pathfinder Daily EASE-Grid Brightness Temperatures, Version 2 data set has been updated through 30 June 2015.  The data set consists of gridded brightness temperatures from the Special Sensor Microwave/Imager (SSM/I) and the Special Sensor Microwave Imager/Sounder (SSMIS) in three equal-area projections: Northern Hemisphere, Southern Hemisphere, and full global.

Data Set DOI: http://dx.doi.org/10.5067/3EX2U1DV3434

NSIDC DAAC Releases New Sea Ice Age Data Set

25 March 2015

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is pleased to announce the release of the EASE-Grid Sea Ice Age data set. This data set provides weekly estimates of sea ice age for the Arctic Ocean from remotely sensed sea ice motion and sea ice extent beginning in November 1978. The ice age data are derived from a number of passive microwave imagers, visible and infrared radiometers, drifting buoys, and wind data.

Data Set DOI: http://dx.doi.org/10.5067/1UQJWCYPVX61

NSIDC DAAC Updates SSMIS EASE-Grid Brightness Temperatures

29 January 2015

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is pleased to announce that the DMSP SSM/I-SSMIS Pathfinder Daily EASE-Grid Brightness Temperatures, Version 2 data set has been updated through 31 December 2014. The data set consists of gridded brightness temperatures from the Special Sensor Microwave/Imager (SSM/I) and the Special Sensor Microwave Imager/Sounder (SSMIS) in three equal-area projections: Northern Hemisphere, Southern Hemisphere, and full global.

Data Set DOI: This data set currently does not have a DOI.

EASE-Grid and EASE-Grid 2.0 Land Cover Classifications and Land Cover Masks Now Available

24 November 2014

Land cover classifications and land cover masks in the EASE-Grid and EASE-Grid 2.0 projections are now available as data sets from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). These data provide land cover classifications and land classification masks derived from the Boston University MOD12Q1 V004 MODIS/Terra 1 km Land Cover Product. These data are available in various EASE-Grid and EASE-Grid 2.0 azimuthal and global projections, at various spatial resolutions ranging from 3 km to 100 km. For more information about the land classification data, see the EASE-Grid Land Cover Classifications Derived from Boston University MODIS/Terra Land Cover Data catalog page. For more information about the land cover masks, see the EASE-Grid Land-Ocean-Coastline-Ice Masks Derived from Boston University MODIS/Terra Land Cover Data catalog page.

Update to the Northern Hemisphere EASE-Grid 2 Weekly Snow Cover and Sea Ice Extent

20 October 2014

The Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent (Version 4) has been updated through 29 June 2014. This product provides snow cover at weekly intervals beginning 03 October 1966, as well as combined snow cover and sea ice extent at weekly intervals beginning 23 October 1978. Designed to facilitate the study of Northern Hemisphere seasonal fluctuations of snow cover and sea ice extent, this product also includes monthly climatologies describing average extent, probability of occurrence, and variance. For more information and to access the update, please visit the documentation for the data set.

DMSP SSM/I-SSMIS Daily EASE-Grid Brightness Temperatures Updated Through 31 May 2014

27 June 2014

NSIDC is pleased to announce that the “DMSP SSM/I-SSMIS Pathfinder Daily EASE-Grid Brightness Temperatures” data set has been updated through 31 May 2014 for all projections (North, South and Global). For more information or to access these data, please visit the data set’s Web page.

Near-Real-Time Daily Global Ice Concentration and Snow Extent Data Access Changed

3 June 2014

NSIDC would like to announce a change to data access for the “Near-Real-Time SSM/I-SSMIS EASE-Grid Daily Global Ice Concentration and Snow Extent, Version 4 (NISE)” data set. Data access through our primary portal will remain the same at ftp://n5eil01u.ecs.nsidc.org/SAN/OTHR/NISE.004. The secondary access point at ftp:/ /nise @sidads.colorado.edu has been removed. Please update any bookmarks you may have to the secondary access point to link to the primary one. We expect that this will only affect a small number of data users. Documentation for the data set can be accessed from its catalog page.

Please contact NSIDC user services at nsidc@nsidc.org if you have concerns or further questions.

 

 

 

NSIDC Web Site and FTP Server Down for System Maintenance

29 May 2014

From 4:30 p.m. Wednesday, June 04 until noon Friday, June 06  (USA Mountain Time), our Web site and FTP server will be unavailable due to system maintenance. We apologize for any inconvenience this may cause you.

Data access change for the Near-Real-Time Daily Global Ice Concentration and Snow Extent

15 May 2014

NSIDC would like to announce a change to data access for the Near-Real-Time SSM/I-SSMIS EASE-Grid Daily Global Ice Concentration and Snow Extent, Version 4 (NISE) data set. Data access through our primary portal will remain the same at ftp://n5eil01u.ecs.nsidc.org/SAN/OTHR/NISE.004. We will be removing the secondary access point at ftp://nise@sidads.colroado.edu beginning 31 May 2014. We expect that this will only affect a small number of data users.  Documentation for the data set can be accessed from the product’s catalog page. Please contact NSIDC user services at nsidc@nsidc.org if you have concerns or further questions.