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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 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
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 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/MPYG15WAA4WX Date Accessed: 2026-05-16

Documents

Publications Citing This Dataset

Filters
Title Year Author Topic
Quantifying Cloud and Sea Ice Impacts on Solar Radiation Absorption Over the Arctic Ocean Jin, Zhonghai, Zhang, Yuanchong, Ottaviani, Matteo Sea Ice Concentration
Regime Shift in Arctic Ocean Sea-Ice Extent Stern, Harry L. Sea Ice Concentration
The Critical Role of Sea Ice Products for Accurate WindWave Simulations in the Arctic Miesse, Tyler W., Henke, Martin, de Souza de Lima, Andre, Ferreira, Celso M., Ravens, Thomas Sea Ice Concentration
Techno-economics of offshore wind power in global resolution Satymov, Rasul, Bogdanov, Dmitrii, Breyer, Christian Sea Ice Concentration
Temporal and spatial equivalence in demographic responses of emperor penguins (Aptenodytes forsteri) to environmental change Sen, Bilgecan, CheCastaldo, Christian, LaRue, Michelle A., Krumhardt, Kristen M., Landrum, Laura, Holland, Marika M., Lynch, Heather J., Delord, Karine, Barbraud, Christophe, Jenouvrier, Stephanie Sea Ice Concentration
Temporal Dynamics of Open Ocean Polynyas Influenced by Sea Ice and Climatic Impacts in the West Cosmonaut Sea Hao, Guanghua, Shen, Hui, Wang, Anliang, Sun, Yongming Sea Ice Concentration
Storms, Sea Ice, and Microseismic Noise in Alaska John, Sebin, West, Michael E. Sea Ice Concentration
SICNetseason V1.0: a transformer-based deep learning model for seasonal Arctic sea ice prediction by incorporating sea ice thickness data Ren, Yibin, Li, Xiaofeng, Wang, Yunhe Sea Ice Concentration
SmallScale, HighFrequency Ice, and Ocean Processes in the Amundsen Sea Embayment, West Antarctica Poinelli, M., Siegelman, L., Nakayama, Y., Rignot, E., Seroussi, H., Fenty, I., Larour, E. Sea Ice Concentration
Variability of sea ice concentration over Antarctica during recent decade Sahoo, S K, Momin, Imranali M, George, John P, Prasad, V S Sea Ice Concentration
The Responses of Antarctic sea ice and Overturning Cells to Meridional Wind Forcing Song, Hajoon, Choi, Yeonju, Doddridge, Edward W., Marshall, John Sea Ice Concentration
Deep Learning Shows Promise for Seasonal Prediction of Antarctic Sea Ice in a Rapid Decline Scenario Dong, Xiaoran, Nie, Yafei, Wang, Jinfei, Luo, Hao, Gao, Yuchun, Wang, Yun, Liu, Jiping, Chen, Dake, Yang, Qinghua Sea Ice Concentration
Identifying indicators of polar bear population status Rode, Karyn D., Wilson, Ryan R., Crawford, Justin A., Quakenbush, Lori T. Sea Ice Concentration
Impact of ocean heat transport on sea ice captured by a simple energy balance model Aylmer, Jake R., Ferreira, David, Feltham, Daniel L. Surface Temperature, Skin Temperature, Upper Air Temperature, Air Temperature, Atmospheric Winds, Surface Winds, U/V Wind Components, Atmospheric Pressure, Sea Level Pressure, Surface Pressure, Specific Humidity, Total Precipitable Water, Cloud Liquid Water/Ice, Atmospheric Water Vapor, Atmospheric Ozone, Oxygen Compounds, Altitude, Boundary Layer Winds, Sea Ice Concentration
Distribution of Arnoux's beaked whales (Berardius arnuxii) Feij, Bram, Kuhn, Susanne, Meijboom, Andre, van Franeker, Jan A., Bornemann, Horst, Kelly, Nat, Schaafsma, Fokje L. Sea Ice Concentration
Enhanced Net Community Production With Sea Ice Loss in the Western Arctic Ocean Uncovered by Machine-Learning-Based Mapping Zhou, Tianyu, Li, Yun, Ouyang, Zhangxian, Cai, WeiJun, Ji, Rubao Sea Ice Concentration
Antarctic sea ice multidecadal variability triggered by Southern Annular Mode and deep convection Morioka, Yushi, Manabe, Syukuro, Zhang, Liping, Delworth, Thomas L., Cooke, William, Nonaka, Masami, Behera, Swadhin K. Sea Ice Concentration
Antarctic Sea Ice Prediction with A Convolutional Long Short-Term Memory Network Dong, Xiaoran, Yang, Qinghua, Nie, Yafei, Zampieri, Lorenzo, Wang, Jiuke, Liu, Jiping, Chen, Dake Sea Ice Concentration
Changes in the Arctic Traffic Occupancy and Their Connection to Sea Ice Conditions from 2015 to 2020 Liu, Yihan, Luo, Hao, Min, Chao, Chen, Qiong, Yang, Qinghua Sea Ice Concentration
North Atlantic and the Barents Sea variability contribute to the 2023 extreme fire season in Canada Liu, Guanyu, Li, Jing, Li, Xichen, Ying, Tong Geopotential Height, Altitude, Surface 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, Skin Temperature, Atmospheric Carbon Monoxide, Carbon Monoxide, Sea Ice Concentration
Insights into carbonate environmental conditions in the Chukchi Sea Hauri, Claudine, Irving, Brita, Dupont, Sam, Pages, Remi, Hauser, Donna D. W., Danielson, Seth L. Sea Ice Concentration
Air mass history linked to the development of Arctic mixed-phase clouds Murray-Watson, Rebecca J., Gryspeerdt, Edward Sea Ice Concentration
A demographic survey of the Davis Strait polar bear subpopulation using physical and genetic capture-recapture-recovery sampling Dunham, Kylee D., Dyck, Markus G., Ware, Jasmine V., Derocher, Andrew E., Regehr, Eric V., Stern, Harry L., Stenson, Garry B., Koons, David N. Sea Ice Concentration
Analysis of shipping accident patterns among commercial and non-commercial vessels operating in ice-infested waters in Arctic Canada from 1990 to 2022 Nicoll, Adrian, Dawson, Jackie, Marty, Jerome, Copland, Luke, Sawada, Michael Sea Ice Concentration
Future directions for Southern Ocean and Antarctic Nearshore and coastal research Committee on Future Directions for Southern Ocean and Antarctic Nearshore and Coastal Research Sea Ice Concentration
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