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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 is from 26 October 1978 to 31 December 2025.

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
3
Published
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

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 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/MPYG15WAA4WX Date Accessed: 2026-07-31

Documents

Publications Citing This Dataset

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Title Year Author Topic
First abundance estimate for the east Greenland polar bear subpopulation Laidre, Kristin L, Marques, Tiago A, Cohen, Benjamin, Hansen, Rikke G, Regehr, Eric V, Zahn, Marie J, Aars, Jon, Ware, Jasmine, Stern, Harry L, Ugarte, Fernando Sea Ice Concentration, Infrared Radiance, REFLECTED INFRARED, Visible Radiance, Bathymetry, Bed Elevation, Glacier/Ice Sheet Thickness, Terrain Elevation
Advancing global sea ice prediction capabilities using a fully coupled climate model with integrated machine learning Gregory, William, Bushuk, Mitchell, Zhang, Yong-Fei, Adcroft, Alistair, Zanna, Laure, McHugh, Colleen, Jia, Liwei Sea Ice Concentration
A decade of sea ice concentration retrieved from sentinel-1 Wulf, Tore, Buus-Hinkler, Jrgen, Singha, Suman, Dasgupta, Nishka, Athanasiadis, Athanasios, Kreiner, Matilde Brandt Sea Ice Concentration
Characteristics of ocean mesoscale eddies in the Canadian Basin from a high resolution pan-Arctic model Planat, Noemie, Dufour, Carolina Olivia, Lique, Camille, Rieck, Jan Klaus, Talandier, Claude, Tremblay, Louis Bruno Sea Ice Concentration
Increased heat transport through Barrow Canyon and its impact on subsurface warming in the western Arctic Ocean Itoh, Motoyo, Nishino, Shigeto, Kikuchi, Takashi, Melling, Humfrey, Zimmermann, Sarah, Williams, William J., Carmack, Eddy C. Sea Ice Concentration
Impact of satellite-derived sea ice data assimilation over Antarctica using a variational data assimilation system Sahoo, S. K., Momin, IM, Gera, A., George, JP Sea Ice Concentration
Polar bear visits to human infrastructure increase with sea ice loss, not poor body condition Rivet, Danielle, Brook, Ryan, Crawford, Alex, Kramer, Corey, Laforge, Michel P., Stroeve, Julienne, Clark, Douglas A. Sea Ice Concentration
Subpolar North Atlantic Water Mass Transformation and Overturning in MooreMaley, Ben, McClean, Julie L., Barthel, Alice M., Gille, Sarah T., Van Roekel, Luke P. Sea Ice Concentration
Shortening of the Arctic cold air outbreak season detected by a phenomenological machine learning approach von der Lippe, Filip Severin, Carlsen, Tim, Storelvmo, Trude, David, Robert Oscar Sea Ice Concentration, Geopotential Height, Altitude, Surface Temperature, Skin Temperature, Upper Air Temperature, Dew Point Temperature, Air Temperature, Cloud Top Temperature, Atmospheric Winds, Surface Winds, U/V Wind Components, Upper Level Winds, U/V Wind Components, Vertical Wind Velocity/Speed, Atmospheric Pressure, Sea Level Pressure, Cloud Top Pressure, Sea Level Pressure, Surface Pressure, Specific Humidity, Total Precipitable Water, Cloud Liquid Water/Ice, Atmospheric Water Vapor, Atmospheric Ozone, Oxygen Compounds, Boundary Layer Winds, Total Ozone, Infrared Radiance, REFLECTED INFRARED, Visible Radiance
Arctic Sea Ice Thickness Retrieval From SMOS Using Unsupervised-ClassificationBased Selection of Representative Tie Points Li, Jiaxing, Zhang, Shengkai, Xiao, Feng, Geng, Tong, Ma, Jie, Li, Fei Sea Ice Concentration, Brightness Temperature, Sea Ice Motion, Snow Depth
Assessing Earth's Energy Imbalance Trend in the Early 21st Century in Two HighResolution Coupled Models Chen, YanTing, Merlis, Timothy M., Dinh, Tra, Griffies, Stephen M., Krasting, John, Dussin, Raphael, Zadeh, Niki, Fueglistaler, Stephan A. Sea Ice Concentration
Lead and Floe Detection From CryoSat-2 Radar and ICESat-2 Laser Tilling, R., Egido, A., Harbeck, J., Kurtz, N., Petty, A., Ridout, A., Shepherd, A., Wimert, J., Yi, D. Sea Ice Concentration, Brightness Temperature, Sea Ice Motion, Snow Depth, Sea Ice Elevation, Freeboard
Can subseasonal to seasonal (S2S) forecast systems predict exceptionally rapid decrease and slow growth of Antarctic sea ice during 2022-2023? Chen, Jingxu, Liu, Jiping, Yang, Chao-Yuan, Yang, Qinghua Sea Ice Concentration
Modeling Upper Ocean Ecosystem Dynamics in Response to Interannual SeaIce Variability in the Western Antarctic Peninsula Czajka, Catherine R., Turner, Jessica S., Stammerjohn, Sharon, Kim, Heather H., Schofield, Oscar, Saenz, Benjamin T., Doney, Scott C. Sea Ice Concentration
Processes driving interannual variability of deep convection in the Nordic Seas from an ensemble of Earth System Model historical simulations Veneziani, Milena, Seefeldt, Mark, Cassano, John, Strehl, Anna-Marie Sea Ice Concentration
Prospects for Arctic Summertime Sea Ice Prediction Based on Arctic Seasonal Prediction System (ArcSPS) Tian, Zhongxiang, Liang, Xi, Wang, Dakui, Ding, Zhuoming, Zhao, Fu, Li, Ming, Liu, Na, Huang, Jiaying Sea Ice Concentration
The Importance of NonCO2 Greenhouse Gases to Arctic Warming and SeaIce Loss Liang, YuChiao, Polvani, Lorenzo M., Previdi, Michael, Dong, Yue, Wu, YouTing, England, Mark R., Griffith, Stephen M. Sea Ice Concentration
Wind-Driven Processes During Sea Ice Melt Season in the Ross Sea, Antarctica Liang, Hongjie, Cui, Xiangbin, Zhou, Wen Sea Ice Concentration
An Antarctic ecosystem value index to quantify ecological value across trophic levels and over time DuVivier, Alice K., Krumhardt, Kristen M., Landrum, Laura L., Sylvester, Zephyr, Sen, Bilgecan, Labrousse, Sara, Che-Castaldo, Christian, Eparvier, Alice, Holland, Marika M., LaRue, Michelle A., Nissen, Cara, Levy, Michael N., Jenouvrier, Stephanie, Brooks, Cassandra Sea Ice Concentration
ASICast: a novel model for daily antarctic sea ice concentration prediction Hu, Changhong, Ai, Songtao, Ali Shah, Shoukat, Ding, Xi, Cai, Yi, Chu, XinDe, Yuan, Hanxiao, Cui, Meng, Pimpirev, Christo, Peng, Fang Sea Ice Concentration
Pacific Arctic Sea Ice Loss Resulting from Atmospheric Circulation-Driven Ocean Heat Transport Hong, Yungi, Wang, S-Y Simon, Yoon, Jin-Ho Sea Ice Concentration
Mesoscale iceatmosphereocean coupling processes drive interannual-to-decadal timescale shift of Bering Sea January sea ice variability Wang, Weibo, Jing, Chunsheng, Zhang, Junpeng Sea Ice Concentration
The oceanic response to winds in the Antarctic sea ice loss at the end of the 1970s Feba, F, Goosse, Hugues, Barriat, Pierre-Yves, Massonnet, Francois Sea Ice Concentration
Sea ice latent heat becomes more active in the Arctic sea ice energy budget Liu, Yuang, Zhang, Lujun, Shi, Guorui, Liang, Xi Sea Ice Concentration
Winter Arctic polynyas in CMIP6 models Heuze, Celine, Rheinlnder, Jonathan W., Tian, Tian, Wong, Carmen Hau Man Sea Ice Concentration
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