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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: 2026-05-01

Documents

Publications Citing This Dataset

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Title Year Author Topic
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
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
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
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
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
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
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
A data-driven Bayesian network methodology for predicting future incident risk in Arctic maritime-based cargo transit Li, Wenjie, Henke, Martin, Pundt, Ralph, Miller-Hooks, Elise Sea Ice Concentration
Increased future ocean heat uptake constrained by Antarctic sea ice extent Vogt, Linus, de Lavergne, Casimir, Sallee, Jean-Baptiste, Kwiatkowski, Lester, Frolicher, Thomas L., Terhaar, Jens Sea Ice Concentration
Fragmentation patterns of Antarctic icebergs in sea ice: observations and statistical data Guan, Zhenfu, Liu, Yan, Cheng, Xiao, Li, Teng, Shokr, Mohammed, Liu, Xuying, Wang, Shaoyin, Zheng, Lei, Chen, Zilong Sea Ice Concentration
Formation and fate of freshwater on an ice floe in the Central Arctic Smith, Madison M., Fuchs, Niels, Salganik, Evgenii, Perovich, Donald K., Raphael, Ian, Granskog, Mats A., Schulz, Kirstin, Shupe, Matthew D., Webster, Melinda Sea Ice Concentration
Impact of increased anthropogenic Amazon wildfires on Antarctic Sea ice melt via albedo reduction Chakraborty, Sudip, Devnath, Maloy Kumar, Jabeli, Atefeh, Kulkarni, Chhaya, Boteju, Gehan, Wang, Jianwu, Janeja, Vandana P. Tropopause, Surface Pressure, Air Temperature, Upper Air Temperature, Total Precipitable Water, Water Vapor, Cloud Height, Cloud Top Pressure, Cloud Top Temperature, Cloud Vertical Distribution, Emissivity, Sea Surface Temperature, Skin Temperature, Carbon Monoxide, Geopotential Height, Humidity, Water Vapor Profiles, Cloud Liquid Water/Ice, Outgoing Longwave Radiation, Methane, Atmospheric Ozone, Precipitation, Precipitation Amount, Precipitation Rate, Snow, Rain, Sea Ice Concentration
Impact of modulating surface heat flux through sea ice leads on Arctic sea ice in EC-Earth3 in different climates Tian, Tian, Davy, Richard, Ponsoni, Leandro, Yang, Shuting Sea Ice Concentration
Impact of Arctic Sea Ice Representation on Extended Medium-Range Forecasting: a Case Study of the 2016 Barents-Kara Sea Warming Event Park, Jung Hyun, Sung, Hyun-Joon, Koo, Myung-Seo, Park, Junseong, Park, Rae-Seol, Han, Kwang-Hee, Sim, Ji-Han, Lee, Hyo-Jung, Noh, Hayeon, Kim, Baek-Min Sea Ice Concentration
Northern Hemisphere Wintertime Teleconnections from the 20232024 El Nino Offset by Background SST Trends Deser, Clara, Yeager, Stephen, Phillips, Adam S., Rosenbloom, Nan, Zhao, Xueying Sea Ice Concentration
Environmental Factors Associated With Fall Phytoplankton Blooms in the Northern Bering and Chukchi Seas Gaffey, C. B., Frey, K. E., Rogan, J., Estes, L., Cooper, L. W., Clement Kinney, J., Grebmeier, J. M. Sea Ice Concentration
High-latitude Southern Ocean eddy activity projected to evolve with anthropogenic climate change Beech, Nathan, Rackow, Thomas, Semmler, Tido, Jung, Thomas Sea Ice Concentration
Physical drivers of long-term chlorophyll-a variability in the Southern Ocean Golder, Md Rony, Antoine, David Sea Ice Concentration
Regime Shift in Arctic Ocean Sea-Ice Extent Stern, Harry L. Sea Ice Concentration
An effective deep-learning prediction of Arctic sea-ice concentration based on the U-Net model Xie, Yifan, Fan, Ke, Yang, Hongqing, Fan, Yi, He, Shengping Sea Ice Concentration
A regional physicalbiogeochemical ocean model for marine resource applications in the Northeast Pacific (MOM6-COBALT-NEP10k v1. 0) Drenkard, Elizabeth J., Stock, Charles A., Ross, Andrew C., Teng, Yi-Cheng, Cordero, Theresa, Cheng, Wei, Adcroft, Alistair, Curchitser, Enrique, Dussin, Raphael, Hallberg, Robert, Hauri, Claudine, Hedstrom, Katherine, Hermann, Albert, Jacox, Michael G., Kearney, Kelly A., Pages, Remi, Pilcher, Darren J., Pozo Buil, Mercedes, Seelanki, Vivek, Zadeh, Niki Sea Ice Concentration
Daily 1 km seamless Antarctic sea ice albedo product from 2012 to 2021 Ma, Chao, Hao, Weifeng, Cheng, Qing, Ye, Fan, Qu, Ying, Yin, Jiabo, Xu, Fang, Wu, Haojian, Li, Fei Reflectance, Sea Ice Concentration
Diagnostic early freeze onset in the Bering Sea Wang, Weibo, Su, Jie, Zhang, Junpeng, Ding, Rui, Jing, Chunsheng, Guo, Xiaogang Sea Ice Concentration
Optimal localization radius of data assimilation for Arctic sea ice initialization using CICE5/DART Kim, Ji-Soo, Chung, Inchae, Noh, Young-Chan, Choi, Yonghan, Kim, Joo-Hong, Lee, Jeong-Gil, Lee, Sang-Moo Sea Ice Concentration
Quantifying Cloud and Sea Ice Impacts on Solar Radiation Absorption Over the Arctic Ocean Jin, Zhonghai, Zhang, Yuanchong, Ottaviani, Matteo 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
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
Techno-economics of offshore wind power in global resolution Satymov, Rasul, Bogdanov, Dmitrii, Breyer, Christian 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
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
Storms, Sea Ice, and Microseismic Noise in Alaska John, Sebin, West, Michael E. 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
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
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
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
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
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
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
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
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
Identifying indicators of polar bear population status Rode, Karyn D., Wilson, Ryan R., Crawford, Justin A., Quakenbush, Lori T. Sea Ice Concentration
Global upper ocean dissolved oxygen budget for constraining the biological carbon pump Yamaguchi, Ryohei, Kouketsu, Shinya, Kosugi, Naohiro, Ishii, Masao 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
Is Only the Wind Field Controlling the Maximum Sea Ice Area in the Bering Sea? Wang, Weibo, Jing, Chunsheng, Guo, Xiaogang Sea Ice Concentration
Possible enhancement in ocean productivity associated with wildfire-derived nutrient and black carbon deposition in the Arctic Ocean in 20192021 Seok, Min-Woo, Ko, Young Ho, Park, Ki-Tae, Kim, Tae-Wook Sea Ice Concentration
Air mass history linked to the development of Arctic mixed-phase clouds Murray-Watson, Rebecca J., Gryspeerdt, Edward 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
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
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