Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent, Version 4 (NSIDC-0046)
Data set:
NSIDC-0046
This is the most recent version of these data.
Version Summary

  • The projection changed to EASE-Grid 2.0, 720 x 720, at 25.000000 km

  • Sensor change over dates:

    • SMMR to SSM/I: 1987-07-03

    • SSM/I F08 to F11: 1991-12-09

    • SSM/I F11 to F13: 1995-05-08

    • SSM/I F13 to SSMIS F17: 2008-01-01



  • EASE-Grid Land Mask Source: Same as Version 3.1, regridded to EASE-Grid 2.0 (Brodzik et al. 2012).

  • Sea Ice data set used: 1978-10-23 to present: Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data.

Overview

The main parameters for this data set are snow cover and sea ice extent; both parameters are derived from SMMR and DMSP-F8, -F11, -F13, and -F17 SSM/I and SSMIS brightness temperature data. These data are provided on the Northern Hemisphere EASE-Grid 2.0 projection and at a grid cell size of 25 x 25 km. This product is designed to provide a consistent weekly time series of snow cover starting in October 1966 and sea ice starting in October 1978.
Parameter(s):
SEA ICE SNOW COVER
Platform(s):
DMSP, DMSP 5D-2/F11, DMSP 5D-2/F13, DMSP 5D-2/F8, DMSP 5D-3/F17, GOES, GOES-7, Nimbus-7
Sensor(s):
SMMR, SSM/I, SSMIS, VAS
Data Format(s):
Binary
Temporal Coverage:
3 October 1966 to 31 December 2021
23 October 1978 to 31 December 2021
Temporal Resolution:
7 day
Spatial Resolution:
25 km
25 km
Spatial Coverage:
N:
90
S:
0
E:
180
W:
-180

Data Access & Tools

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Help Articles

How To

Learn how to import  EASE-Grid 2.0 data files into ArcGIS in this step-by-step help article
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. We provide basic command line Wget and curl instructions for HTTPS file system downloads below.