Data Announcements

Version 4 Aquarius L2 Swath Single Orbit Soil Moisture Data, and Version 4 Aquarius L3 Gridded 1-Degree Soil Moisture data are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). The Level-2 data set contains global soil moisture estimates. The Level-3 data sets contain gridded daily, weekly, monthly, seasonal, and annual global soil moisture estimates. DOI:10.5067/Aquarius/AQ2_SM.004 DOI:10.5067/Aquarius/AQ3_DYSM.004

NOAA@NSIDC is pleased to announce the release of a 1 km gridded MASIE sea ice product in addition to the 4 km version. The Multisensor Analyzed Sea Ice Extent (MASIE) helps to give the best available Arctic-wide answer to the question: Where is Arctic sea ice now? MASIE products provide measurements of daily sea ice coverage for the Northern Hemisphere and 16 Arctic regions in a polar stereographic projection in 4 km grid cells and now in 1 km grid cells as well. In addition, a full Northern Hemisphere time series graph has been added to the MASIE Time Series Plots.

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 Annual Greenland Outlet Glacier Terminus Positions from SAR Mosaics provides glacier terminus positions in individual shapefiles for winter 2000–2001, annually during winters 2005–2006 to 2008–2009, and winter 2012–2013. Data Set DOI: https://doi.org/10.5067/DC0MLBOCL3EL

The Antarctic Glaciological Data Center (AGDC) at NSIDC is pleased to announce the release of a new data set, Roosevelt Island Climate Evolution Ice Core ICP-MS Data. This data set includes three Roosevelt Island Climate Evolution (RICE) ice core samples drilled on Roosevelt Island, Ross Ice Shelf, Antarctica. The RICE elements analyzed were: Sr, Cd, Cs, Ba, La, Ce, Pr, Pb, Bi, U, As, Li, I, Al, S, Ca, Ti, V, Cr, Mn, Fe, Co, Na, Mg, Cu, Zn, and K verses depth.

The Antarctic Glaciological Data Center (AGDC) at NSIDC is pleased to announce the release of a new data set, Whillans Ice Stream Stick-slip.These data contain ice velocity measurements obtained from seismic and GPS recordings during the 2010 and 2011 Antarctic field seasons.

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is pleased to announce the release of SMAP L2 Radiometer Half-Orbit 36 km EASE-Grid Soil Moisture and SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture data sets. These Level-2 (L2) and Level-3 (L3) soil moisture products provide gridded estimates of global land surface conditions retrieved by the Soil Moisture Active Passive (SMAP) passive microwave radiometer. SMAP L2 Radiometer Half-Orbit

NOAA@NSIDC is pleased to announce that the NOAA@NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration, Version 2 data set is now available through 2014. This data set provides a Climate Data Record (CDR) of sea ice concentration from passive microwave data. It provides a consistent, daily and monthly time series of sea ice concentrations from 09 July 1987 through 2014 for both the north and south polar regions on a 25 km x 25 km grid. Data Set DOI: https://doi.org/10.7265/N55M63M1

A CU Boulder CIRES press release, Better Daily Sea Ice Forecasts for the Arctic Following CU-Boulder-led Innovation, was occasioned by the publication of a paper by Posey et al. titled Improving Arctic Sea Ice Edge Forecasts by Assimilating High Horizontal Resolution Sea Ice Concentration Data into the US Navy's Ice Forecast Systems (2015). The press release highlights improvements brought about by blending a product based on National Ice Center analysts interpretation of sea ice extent with passive microwave AMSR2 sea ice concentration data.

NASA IceBridge DMS L0 Raw Imagery 2015 Greenland data are now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains level zero imagery taken from the Digital Mapping System (DMS) over Antarctica and Greenland. Data Set DOI: https://doi.org/10.5067/UMFN22VHGGMH

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.

NOAA@NSIDC is pleased to announce that the Submarine Upward Looking Sonar Ice Draft Profile Data and Statistics data set has been updated with historical data from 1960, 1969, and 1970. This data set consists of upward looking sonar draft data collected by submarines in the Arctic Ocean. It includes data from both U.S. Navy and Royal Navy submarine.

NASA IceBridge MCoRDS L2 Ice Thickness data for 2014 Antarctica are now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). 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). Data set DOI: https://doi.org/10.5067/GDQ0CUCVTE2Q

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.

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is pleased to announce that the DMSP SSM/I-SSMIS Daily Polar Gridded Brightness Temperatures, Version 4 data set has been updated through 30 June 2015.

NASA IceBridge DMS L1B Geolocated and Orthorectified Images for 2015 Greenland 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. Data set DOI: https://doi.org/10.5067/OZ6VNOPMPRJ0

NASA IceBridge L4 Sea Ice Freeboard, Snow Depth, and Thickness 2009 and 2010 Antarctica data are now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). Greenland data for 26 March 2013, 27 March 2013, and 25 April 2013 also have been added to the data set. In addition, in the previous version of IDCSI4 data files, it was discovered that the Surface Temperature variable was blank. Surface Temperature values are now included.

The NASA IceBridge ATM L2 Icessn Elevation, Slope, and Roughness (ILATM2) Version 2 data set now includes all data from 31 March 2009 to present. On 10 August 2015, Version 1 fixed-width space-delimited ASCII text files for 31 March 2009 to 08 November 2012 were replaced with Comma Separated Values (CSV) files and are now included with ILATM2 Version 2 data.

NASA IceBridge-related Radiostratigraphy and Age Structure of the Greenland Ice Sheet data are now published at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

NASA IceBridge POS/AV L1B Corrected Position and Attitude Data for Arctic 2015 are now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). 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. Data set DOI: https://doi.org/10.5067/XILTNL9F1HCR

The NASA IceBridge ATM L4 Surface Elevation Rate of Change data set now includes measurements based on comparisons of earlier years with 2014. The data are available from NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). Compared dates include: 2002.11.26, 2004.11.18, 2008.10.12, 2009.10.16, 2010.11.05, 2011.10.14 and 2012.10.12.