Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data, Version 2 (NSIDC-0051)
Data set:
NSIDC-0051
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This is the most recent version of these data.
Version Summary
Conversion to netCDF format.

Overview

This data set is generated from brightness temperature data and is designed to provide a consistent time series of sea ice concentrations spanning the coverage of several passive microwave instruments.The data are provided in the polar stereographic projection at a grid cell size of 25 x 25 km.
Parameter(s):
SEA ICE CONCENTRATION
Platform(s):
DMSP 5D-2/F11, DMSP 5D-2/F13, DMSP 5D-2/F8, DMSP 5D-3/F17, Nimbus-7
Sensor(s):
SMMR, SSM/I, SSMIS
Data Format(s):
PNG, netCDF-4
Temporal Coverage:
26 October 1978 to 31 May 2022
Temporal Resolution:
1 day, 1 month
Spatial Resolution:
25 km
25 km
,
25 km
25 km
Spatial Coverage:
N:
-39.23
S:
-90
E:
180
W:
-180
N:
90
S:
30.98
E:
180
W:
-180
Strengths and Limitations

Strengths

Limitations

 

Data Access & Tools

A free NASA Earthdata Login account is required to access these data. Learn More

Help Articles

Getting started

NSIDC currently archives passive microwave sea ice concentration products based on two algorithms: the NASA Team algorithm and the Bootstrap algorithm. Both algorithms were developed by researchers at the NASA Goddard Space Flight Center in the 1980s.

How To

Many NSIDC DAAC data sets can be accessed using the NSIDC DAAC's Data Access Tool. This tool provides the ability to search and filter data with spatial and temporal constraints using a map-based interface. Users have the option to
The NSIDC Data Map Services Application Programming Interface (API) provides HTTP URLs for requesting geo-registered map images from NSIDC's geospatial database. A WMS request defines the geographic layer(s) and area of interest to be processed.
You will first need to have GDAL installed on your system before proceeding on to the following steps.
The following are instructions describing how to import sea ice binary files into ArcGIS. These instructions were tested with ArcMap 10.5 and 10.6.
The Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data are distributed in gridded binary format. NSIDC provides IDL routines to ingest and read the data.
The NSIDC Python Reformatting and Subsetting (PyRS) tool is a command line tool which prompts the user to specify data reformatting and subsetting preferences. Output formats available are native, GeoTIFF, and NetCDF.