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Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data V002

Creator: NSIDC_CPRD
Keywords: Sea Ice Concentration

NSIDC-0051

Version

DOI

https://doi.org/10.5067/MPYG15WAA4WX

Citation

Center/Project

National Snow and Ice Data Center DAAC (NSIDC DAAC)

Data at a Glance

Data Format

PNG, netCDF-4

Spatial Extent

N: -39.23 S: -90 E: 180 W: -180

N: 90 S: 30.98 E: 180 W: -180

Spatial Resolution

25 Kilometers x 25 Kilometers

Location

POLAR

Temporal Extent

1978-10-26 to 2025-12-31

Temporal Resolution

Varies

Coordinate System

CARTESIAN

Granule Spatial Representation

GEODETIC

Description

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. Data coverage began on 26 October 1978 and is ongoing through the most current processing, with updated data processed several times annually.

Version Description

Conversion to netCDF format.

Product Summary

Platforms

DMSP 5D-2/F11 ,

DMSP 5D-2/F13 ,

DMSP 5D-2/F8 ,

DMSP 5D-3/F17 ,

Nimbus-7

Instruments

SSM/I ,

SSMIS ,

SMMR

Spatial Extent

N: -39.23 S: -90 E: 180 W: -180

N: 90 S: 30.98 E: 180 W: -180

Spatial Resolution

25 Kilometers x 25 Kilometers

Spatial Reference System(s)

Multiple EPSG codes (see User Guide)

Location

POLAR

Coordinate System

CARTESIAN

Granule Spatial Representation

GEODETIC

Temporal Extent

1978-10-26 to 2025-12-31

Temporal Resolution

Varies

Concept ID

C3177837840-NSIDC_CPRD

Data State

COMPLETE

Number of Files/Granules

35600

Processing Level

Published

2022-09-01

Science Keywords

Sea Ice Concentration

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Select a Citation Style:

DiGirolamo, N., Parkinson, C., Cavalieri, D., Gloersen, P., & Zwally, H. (2022). Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data, Version 2 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/MPYG15WAA4WX Date Accessed: 2026-05-18

Documents

USER'S GUIDE

Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data, Version 2 User Guide

INSTRUMENT/SENSOR CALIBRATION DOCUMENTATION

SMMR, SSM/I, and SSMIS Sensors Summary

GENERAL DOCUMENTATION

Publications Citing This Dataset

Title	Year Sort ascending	Author	Topic
Variability of Atmospheric CO2 Over the Arctic Ocean: Insights From the OBuoy Chemical Observing Network	2023	Graham, K. A., Holmes, C. D., Friedrich, G., Rauschenberg, C. D., Williams, C. R., Bottenheim, J. W., Chavez, F. P., Halfacre, J. W., Perovich, D. K., Shepson, P. B., Simpson, W. R., Matrai, P. A.	Sea Ice Concentration
The Weakened Atlantic Meridional Overturning Circulation Diminishes Recent Arctic Sea Ice Loss	2023	Lee, YuChi, Liu, Wei	Sea Ice Concentration
Sea ice breakup and freeze-up indicators for users of the Arctic coastal	2022	Walsh, John E., Eicken, Hajo, Redilla, Kyle, Johnson, Mark	Sea Ice Concentration