NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration, Version 2

Data set id:

G02202

DOI: 10.7265/N55M63M1

Data Citation and Acknowledgment
As a condition of using these data, you must cite the use of this data set. Such a practice gives credit to data set producers and advances principles of transparency and reproducibility.

Meier, W. N., Fetterer, F., Savoie, M., Mallory, S., Duerr, R. & Stroeve, J. (2013). NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration. (G02202, Version 2). [Data Set]. Boulder, Colorado USA. National Snow and Ice Data Center. https://doi.org/10.7265/N55M63M1. [describe subset used if applicable]. Date Accessed 12-26-2024.

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Other standard citation formats may be found on the DOI Citation Formatter website.

Describing subset: When applicable, include the information a reader would need to extract the same subset at the end of your citation. If multiple or complex steps were incolved, it may be more appropriate to include this information in the paper itself.

See our Citation Policies for more details about how to structure your data citation.

Literature references: Please include the following literature citations in addition to the data citation above:

Peng, G., Meier, W. N., Scott, D. J. & Savoie, M.. 2013. A long-term and reproducible passive microwave sea ice concentration data record for climate studies and monitoring. Earth Syst. Sci. Data. 5. DOI: 10.5194/essd-5-311-2013.

There is a more recent version of these data.
Version Summary

Two new variables added to the netCDF files:

melt_onset_day_seaice_conc_cdr

melt_onset_day_seaice_conc_monthly_cdr

Calculation of melt_start_detected flag in the qa_of_seaice_conc_cdr variable was updated

See the documentation for full details on these variables.

Overview

This data set has been replaced with a newer version. Note: If necessary, Version 2 can be accessed by contacting NSIDC Users Services at nsidc@nsidc.org. However, we highly suggest using the latest version of this data set. 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 the most recent processing for both the north and south polar regions. In addition, three other sea ice concentration products are included with the CDR that extend the sea ice measurements back to 26 October 1978. However, these three products are not included in the official CDR because processing the older data in a way that follows the standards of a CDR is not currently possible. All data are on a 25 km x 25 km grid.

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):

NetCDF

Temporal Coverage:

26 October 1978 to 31 December 2015

Temporal Resolution:

1 day

Spatial Resolution:

25 km

25 km

Spatial Coverage:

N:

89.84

S:

31.1

E:

180

W:

-180

N:

-39.36

S:

-89.84

E:

180

W:

-180

Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.

View Metadata Record

Data Access & Tools

This data set has been retired. There is a more recent version of these data.

Help Articles

General Questions & FAQs

Descriptions of and differences between the NASA Team and Bootstrap algorithms

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 Articles

How to access and download NOAA@NSIDC data

NOAA@NSIDC data recently transitioned to HTTPS. The directory structure has NOT changed, but the beginning of the URL has changed from: ftp://sidads.colorado.edu/pub/DATASETS/ to:

Currently three NOAA@NSIDC data sets are available in NOAA's PolarWatch Data Catalog. Please note that in the catalog the Climate Data Record (CDR) data sets are split up into Antarctic and Arctic data sets:

This external R tutorial guides you through an R script for the NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration data in PolarWatch: