NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC)
Data Updates
NASA IceBridge Sea Ice Freeboard, Snow Depth, and Thickness Quick Look evaluation product data for the 2015 time period are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set is an evaluation product containing derived geophysical data products retrieved over the Arctic sea ice cover from 2012 to 2015 using the IceBridge Airborne Topographic Mapper (ATM), Snow Radar, Digital Mapping System (DMS), and KT19 pyrometer.
The NASA IceBridge-related CryoSat-2 Sea Ice Freeboard, Thickness, and Snow Depth Quick Look evaluation product now includes data for the March 2015 time period, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set is an experimental sea ice thickness data set containing derived geophysical data products retrieved over the Arctic sea ice cover.
The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is pleased to announce the release of the Polar Stereographic Valid Ice Masks Derived from National Ice Center Monthly Sea Ice Climatologies data set. These valid ice masks provide a way to remove spurious ice caused by residual weather effects and land spillover in passive microwave data, and are derived from the National Ice Center Arctic Sea Ice Charts and Climatologies data.
IceBridge DMS L1B Geolocated and Orthorectified Images for 2014 Antarctica are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains Level-1B imagery taken from the Digital Mapping System (DMS) over Greenland and Antarctica. See the IceBridge DMS L1B landing page for more information.
Data set DOI: https://doi.org/10.5067/OZ6VNOPMPRJ0
The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is pleased to announce that the Bootstrap Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS, Version 2 data set has been updated through 31 December 2014.
The NASA IceBridge LVIS POS/AV L1B Corrected Position and Attitude Data now include data for the Alaska 2014 Arctic Radiation - IceBridge Sea&Ice Experiment (ARISE) campaign. This data set contains georeferencing data from the Applanix 510 and 610 POS AV systems flown with the Land, Vegetation, and Ice Sensor (LVIS) over Greenland, Antarctica, and Alaska.
The NASA IceBridge DMS L0 Raw Imagery data set now includes 2014 Antarctica data. This data set contains level zero imagery taken from the Digital Mapping System (DMS) over Antarctica and Greenland. For further information and to access the data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), see the IceBridge DMS L0 Imagery landing page.
Data Set DOI: https://doi.org/10.5067/UMFN22VHGGMH
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.
The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is pleased to announce that the Near-Real-Time DMSP SSMIS Daily Polar Gridded Sea Ice Concentrations data set has been updated with a reduced pole hole for Northern Hemisphere data. In addition, this update includes improved Northern Hemisphere masks for removing residual weather effects. These two changes affect data beginning 01 January 2015.
The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is pleased to announce that the Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data has been updated through 31 December 2014. In addition, SSMIS Northern Hemisphere data beginning 01 January 2008 has been replaced with data that includes a reduced pole hole covering 0.029 million sq km which is ten times smaller than the previous pole hole. This new pole hole will continue to be applied to new data going forward.
The NASA IceBridge ATM L4 Surface Elevation Rate of Change data set now includes measurements based on 2014 data. This data set contains surface elevation rate of change measurements derived from IceBridge and Pre-IceBridge Airborne Topographic Mapper (ATM) widescan elevation measurements data (ILATM1B) for Arctic and Antarctic missions flown under NASA's Operation IceBridge (OIB) and Arctic Ice Mapping (AIM) projects.
The Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is pleased to announce the release of a new data set, MEaSUREs Northern Hemisphere State of Cryosphere Weekly 100km EASE-Grid 2.0.
The NASA IceBridge MCoRDS L2 Ice Thickness data set now includes data for the 2014 Arctic campaign. This data set contains depth sounder measurements of elevation, surface, bottom, and thickness for Greenland and Antarctica taken from the Multichannel Coherent Radar Depth Sounder (MCoRDS). For further information and to access the data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), see the IceBridge MCoRDS L2 landing page.
The NASA IceBridge Accumulation Radar L1B Geolocated Radar Echo Strength Profiles, Version 2 data set now includes data for the 2014 Arctic campaign. This data set contains radar echograms taken over Greenland and Antarctica using the Center for Remote Sensing of Ice Sheets (CReSIS) Accumulation Radar instrument. For further information and to access the data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), see the IceBridge Accumulation Radar L1B landing page.
The NASA IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles, Version 2 data set now includes data for the 2014 Arctic campaign. This data set contains radar echograms taken from the Center for Remote Sensing of Ice Sheets (CReSIS) ultra Multichannel Coherent Radar Depth Sounder (MCoRDS) over land and sea ice in the Arctic and Antarctic. For further information and to access the data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), see the IceBridge MCoRDS L1 landing page.
The NASA IceBridge LVIS L0 Raw Ranges data set now includes data for the Alaska 2014 Arctic Radiation - IceBridge Sea&Ice Experiment (ARISE) 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).
On 11 February 2015, Version 1 of the NASA IceBridge Sander AIRGrav L4 Bathymetry data set was updated to Version 1.1. In V1.1 the precision for lat and lon values in data file IGBTH4_20140207.csv is increased to 6 decimal places. This data set contains bathymetry of Arctic fjords and Antarctic ice shelves based on measurements from the Sander Geophysics Airborne Inertially Referenced Gravimeter (AIRGrav) system.
Version 2 of the AMSR-E Sea Ice data sets will only be available from NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) until 16 February 2015 through the Data Pool or Reverb.
- AMSR-E/Aqua Daily L3 6.25 km 89 GHz Brightness Temperature Polar Grids
- AMSR-E/Aqua Daily L3 12.5 km Brightness Temperatures, Sea Ice Concentration, & Snow Depth Polar Grids
- AMSR-E/Aqua Daily L3 25 km Brightness Temperatures & Sea Ice Concentration Polar Grids
The NASA IceBridge Sander AIRGrav L4 Bathymetry data set now includes data for date range 21 May 2010 to 09 May 2012. This data set contains bathymetry of Arctic fjords and Antarctic ice shelves based on measurements from the Sander Geophysics Airborne Inertially Referenced Gravimeter (AIRGrav) system. For further information and to access the data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), see the IceBridge L4 Bathymetry landing page.
The NASA IceBridge POS/AV L1B Corrected Position and Attitude Data set now includes data for Antarctica 2014. This data set contains georeferencing data from the Applanix 510 POS AV system flown with the Digital Mapping System (DMS) and other instruments over Greenland and Antarctica. For further information and to access the data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), see the IceBridge POS/AV L1B landing page.