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Data Set ID:
RDEFT4

CryoSat-2 Level-4 Sea Ice Elevation, Freeboard, and Thickness, Version 1

This data set contains estimates of Arctic sea ice thickness and concentration, ice freeboard and surface roughness, as well as snow density and depth, derived from the ESA CryoSat-2 Synthetic Aperture Interferometric Radar Altimeter (SIRAL). The data are provided daily on a 25 km grid as 30-day averages for the months between September and April.

This is the most recent version of these data.

Version Summary:

Initial release

COMPREHENSIVE Level of Service

Data: Data integrity and usability verified; data customization services available for select data

Documentation: Key metadata and comprehensive user guide available

User Support: Assistance with data access and usage; guidance on use of data in tools and data customization services

See All Level of Service Details

Parameter(s):
  • SEA ICE > FREEBOARD
  • SEA ICE > ICE DEPTH/THICKNESS
  • SEA ICE > ICE ROUGHNESS
  • SEA ICE > SEA ICE CONCENTRATION
  • SNOW/ICE > SNOW DENSITY
  • SNOW/ICE > SNOW DEPTH
Data Format(s):
  • NetCDF
  • PNG
Spatial Coverage:
N: 90, 
S: 55, 
E: 180, 
W: -180
Platform(s):CRYOSAT-2, DMSP 5D-3/F17
Spatial Resolution:
  • 25 km x 25 km
Sensor(s):SIRAL, SSMIS
Temporal Coverage:
  • 20 September 2010
Version(s):V1
Temporal Resolution30 dayMetadata XML:View Metadata Record
Data Contributor(s):Nathan Kurtz, Jeremy Harbeck

Geographic Coverage
Other Access Options

Other Access Options

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Download Via HTTPS: An Earthdata Login account is required to access these data.

Once you have logged in, you will be able to click and download files via a Web browser. There are also options for downloading via a command line or client. For more detailed instructions, please see Options Available for Bulk Downloading Data from HTTPS with Earthdata Login.

IceBridge Portal: Tool to visualize, search, and download IceBridge data.

Earthdata Search: This application allows you to search, visualize, and access data across thousands of Earth science data sets. Additional customization services are available for select data sets, including subsetting, reformatting, and reprojection.

As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

Kurtz, N. and J. Harbeck. 2017. CryoSat-2 Level-4 Sea Ice Elevation, Freeboard, and Thickness, Version 1. [Indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: https://doi.org/10.5067/96JO0KIFDAS8. [Date Accessed].

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No technical references available for this data set.

How To

Programmatic Data Access Guide
Data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) can be accessed directly from our HTTPS file system or through our Application Programming Interface (API). Our API offers you the ability to order data using specific temporal and spatial filters... read more
Filter and order from a data set web page
Many NSIDC data set web pages provide the ability to search and filter data with spatial and temporal contstraints using a map-based interface. This article outlines how to order NSIDC DAAC data using advanced searching and filtering.  Step 1: Go to a data set web page This article will use the... read more
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