Data Announcements

The CanSISE Observation-Based Ensemble of Northern Hemisphere Terrestrial Snow Water Equivalent data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated to Version 2. Data Set DOI: https://doi.org/10.5067/96ltniikJ7vd

The Sea Ice Trends and Climatologies from SMMR and SSM/I-SSMIS data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated to Version 2. The following changes were made to this version of data:

NOAA@NSIDC is pleased to announce the release of Sea Ice Index Version 2.1. The motivation for the update to Version 2.1 was to port the Sea Ice Index IDL code to Python. Prior to V2.1, the Sea Ice Index was processed with code written mainly in IDL with some Perl, Ruby, and C. In an effort to streamline the processing, all of the code has been ported to Python.

Wednesday, February 1, 2017 12:00:00 PM MST - 1:00:00 PM MST Satellite passive microwave sensors observe microwave radiation traveling upward from the Earth.

The MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, consists of an improved, enhanced-resolution, gridded passive microwave Earth System Data Record (ESDR) for monitoring cryospheric and hydrologic time series from SMMR, SSM/I-SSMIS and AMSRE.

NASA IceBridge DMS L0 Raw Imagery for the 2016 Antarctica campaign is 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

NOAA@NSIDC would like to alert users of an upcoming update to the Sea Ice Index FTP directory structure and file names. The current FTP directory (ftp://sidads.colorado.edu/DATASETS/NOAA/G02135/) contains monthly data and images directly under the top-level directory with one subdirectory for each month. The monthly subdirectories house both northern and southern hemisphere data files and images within them (Figure 1).

The Near-Real-Time SSM/I-SSMIS EASE-Grid Daily Global Ice Concentration and Snow Extent data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated to Version 5. The NISE Version 5 data record begins 12/01/2016. A two-month overlap with NISE Version 4 is planned: 12/01/2016-01/31/2017. The following changes were also made to this version of data:

NASA IceBridge DMS L1B Geolocated and Orthorectified Images for the Summer 2016 campaign 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 ATM L1B Elevation and Return Strength data for Arctic 2016 are now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains spot elevation measurements of Arctic and Antarctic sea ice, and Greenland, Antarctic Peninsula, and West Antarctic region ice surface acquired using the NASA Airborne Topographic Mapper (ATM) instrumentation. Data set DOI: https://doi.org/10.5067/19SIM5TXKPGT

NASA IceBridge ATM L2 Icessn Elevation, Slope, and Roughness data for Arctic 2016 are now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains resampled and smoothed elevation measurements of Arctic and Antarctic sea ice, and Greenland, Antarctic Peninsula, and West Antarctic region land ice surface acquired using the NASA Airborne Topographic Mapper (ATM) instrumentation.

The SMAP Science Data System (SDS) has released several new and updated NASA Soil Moisture Active Passive (SMAP) radiometer data products at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). The following products have been updated to Version 4: SMAP L2 Radiometer Half-Orbit 36 km EASE-Grid Soil Moisture (SPL2SMP) Data Set DOI: https://doi.org/10.5067/XPJTJT812XFY SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture (SPL3SMP) Data Set DOI:

At the American Geophysical Union annual fall meeting this week in San Francisco, NOAA released their 2016 Arctic Report Card. The Arctic Report Card, now in its 11th year, is the work of 61 scientists from 11 nations who report on air, ocean, land, and ecosystem changes.

NOAA@NSIDC is pleased to announce the release of the Sea Ice Mass Balance in the Antarctic (SIMBA) data set. This data set provides different measurements of Antarctic sea ice collected as part of the SIMBA program. The observation program was carried out in the fall of 2007 and the spring of 2009 during a drift program of the Nathaniel B. Palmer icebreaker along with a buoy network established on the Antarctic sea ice. Measurements of ice thickness, temperature profiles, large-scale deformation, and other sea ice characteristics were made.

The search for data can be daunting, but there are tools available to help you along the way. The purpose of this article is to describe two web-based tools, NASA’s Worldview and Earthdata Search, which can be used to work with datasets collected from NASA satellite missions. The tools can complement one another when searching for and visualizing some data, but are intended to serve different needs. Both tools can be used with a number of datasets available at NSIDC[1].

NASA IceBridge POS/AV L1B Corrected Position and Attitude Data for summer 2016 Arctic flights 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

NASA IceBridge DMS L0 Raw Imagery for the summer 2016 Arctic campaign is 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

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 2015. 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 2015 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

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 2015. These data are generated through a grant from the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program. Data Set DOI: https://doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0481.001

Version 2 of Antarctic Grounding Line from Differential Satellite Radar Interferometry data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, provides 22 years of comprehensive high-resolution mapping of grounding lines in Antarctica, derived using differential satellite synthetic aperture radar interferometry (DInSAR) data.