Data Announcements
News and tips for data users
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The Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data data set available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated through 31 December 2015.
Data Set DOI: https://doi.org/10.5067/8GQ8LZQVL0VL
Due to the compromised data integrity with the Defense Meteorological Satellite Program (DMSP) F-17 vertically polarized 37 GHz channel (37V) of the Special Sensor Microwave Imager and Sounder (SSMIS), NSIDC will be distributing data from both the F17 and F18 satellites, starting with 1 April 2016 data. Using data from the 37V channel from the F17 satellite is not recommended. Instead, you should use data from the F18 satellite’s 37V channel.
Due to the compromised data integrity with the DMSP F17 vertically polarized 37 GHz channel (37V) of the Special Sensor Microwave Imager and Sounder (SSMIS), which is a primary channel used for sea ice development, NSIDC is halting production of the Near-Real-Time DMSP SSMIS Daily Polar Gridded Sea Ice Concentrations F17 data and switching over to the F18 satellite, starting with 1 April 2016 data. However, NSIDC is still working on the calibration of the F18 data so temporarily the F18 data will be uncalibrated and using F17 tie points.
The Sea Ice Index is typically updated every day to display yesterday’s ice extent for both hemispheres. The Index relies on data that come from the DMSP F17 satellite. However, these data have not been reliable since early April; so the NOAA@NSIDC team has not been able to update the Sea Ice Index since 31 March 2016. Sea Ice Index processing uses an NSIDC NASA DAAC product, Near-Real-Time DMSP SSMIS Daily Polar Gridded Sea Ice Concentrations (NSIDC-0081), as input.
The SMAP Science Data System (SDS) has released updated NASA SMAP data products at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).
Four Version 6 MODIS snow cover data sets are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC):
Version 3 of the EASE-Grid Sea Ice Age data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). The input ice motion data used for this data set is now derived from NSIDC-0116 Version 3 data, and the data were updated through 31 May 2015.
Data Set DOI: https://doi.org/10.5067/PFSVFZA9Y85G.
The Canadian Meteorological Centre (CMC) Daily Snow Depth Analysis Data data set at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated with snow depth analysis data for 2015. Data Set doi: https://doi.org/10.5067/W9FOYWH0EQZ3.
Single day Arctic data for March 25, 2015 for all three NASA IceBridge ATM products are now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).
IceBridge ATM L1B Elevation and Return Strength
Data Set DOI: https://doi.org/10.5067/19SIM5TXKPGT
IceBridge ATM L2 Icessn Elevation, Slope, and Roughness
Data Set DOI: https://doi.org/10.5067/CPRXXK3F39RV
NASA IceBridge LVIS L1B Geolocated Return Energy Waveforms data for 2014 Arctic ARISE campaign are now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).
This data set contains laser altimetry return energy waveform measurements taken from NASA's Land, Vegetation, and Ice Sensor (LVIS) over areas including Greenland. The data were collected as part of Operation IceBridge funded campaigns.
Data Set DOI: https://doi.org/10.5067/RDT1MZVS0VG9
NASA IceBridge LVIS L2 Geolocated Surface Elevation Product data for rhw 2014 Arctic ARISE campaign are now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).
This data set contains surface elevation measurements from NASA's Land, Vegetation, and Ice Sensor (LVIS) over areas including Greenland and Antarctica. The data were collected as part of NASA Operation IceBridge funded campaigns.
Data Set DOI: https://doi.org/10.5067/OIKFGJNBM6OO
The Antarctic Glaciological Data Center (AGDC) at NSIDC is pleased to announce the release of a new data set, WAIS Divide Ice Core Vertical Thin Section Low-resolution Digital Imagery. This data set consists of a comprehensive, frame-stitched low‐resolution set of digital images of vertical thin sections of the main core (WDC 06A) from WAIS Divide.
The MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR data set at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated with velocity maps for 2013 and 2014. In addition, this update replaces all data for the Jakobshavn Isbrae, Helheim, and Kangerdlugssuaq glaciers with new maps that offer improved temporal sampling and address previous artifacts related to slope discontinuities at these glaciers' terminii.
The Antarctic Glaciological Data Center (AGDC) at NSIDC is pleased to announce the release of a new data set, WDC 06A Mean Grain Size Data. These data comprise the mean grain sizes at the sampled depths derived from vertical thin sections and reflects the final WDC 06A timescale.
Version 3 of the Polar Pathfinder Daily 25 km EASE-Grid Sea Ice Motion Vectors data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). The data was updated through 31 May 2015. The following changes were made to the data set:
The Antarctic Glaciological Data Center (AGDC) at NSIDC is pleased to announce the release of a new data set, Grain Size Full Population Dataset from WDC06A Core. This data set contains the complete grain-size data for all analyses conducted on the vertical thin sections of the WAIS Divide Ice Core WDC06A.
The Antarctic Glaciological Data Center (AGDC) at NSIDC is pleased to announce the release of a new data set, King George and Livingston Islands: Velocities and Digital Elevation Model. The data contain the time series totals of SAR derived detrended surface velocities from Livingston Island, as well as GeoTiff files generated from intensity tracking of Synthetic Aperture Radar (SAR) imagery.
NOAA@NSIDC is pleased to announce that the International Ice Patrol (IIP) has updated their Iceberg Sightings Database through the 2015 iceberg season. The IIP has been collecting information on iceberg activity in the North Atlantic since 1913, and this database contains data from these sightings starting in 1960. The IIP data files include latitude and longitude of sighted icebergs, coded iceberg size and shape class, and date and time of the sighting.
The NASA IceBridge LVIS L0 Raw Ranges data set now includes data for the 2015 Antarctica campaign. This data set contains raw laser altimeter, Inertial Measurement Unit (IMU), Global Positioning System (GPS), and camera data over Greenland, Antarctica, and Alaska taken from the NASA Land, Vegetation, and Ice Sensor (LVIS).
Data set DOI: https://doi.org/10.5067/E6JPQ3QNW77R
The NASA IceBridge Snow Radar L1B Geolocated Radar Echo Strength Profiles Version 1 and Version 2 data products have been updated. Version 1 2009 to 2012 Greenland MATLAB and binary data files have been reformatted to netCDF and the 2009 to 2012 Greenland data are now included with Version 2. The data remaining in Version 1 are Antarctica 2009 to 2011. A time field correction has been applied to data files for Version 2 2013 Greenland campaigns. On 10 February 2016, deconvolution files and supplement files were added to the Version 2 2009 to 2015 Greenland data files captured over sea ice.