English UTF-8 Point of contact NOAA PolarWatch Roy Mendelssohn +1 831-420-3666 Voice 110 McAllister Way Santa Cruz CA 95062 USA roy.mendelssohn@noaa.gov ERDDAP administrator 3 Time 601 86400.0 Sample 332 25000.0 Sample 316 25000.0 false Sea Ice Concentration, NOAA/NSIDC NRT Climate Data Record V3, Southern Hemisphere, 25km, Near Real-Time, 2024-Present, Daily 2026-03-11T07:05:45.109-07:00 Creation polarwatch.noaa.gov nsidcG10016v3sh1day Originator NSIDC/NOAA nsidc@nsidc.org 3 information web browser Background Information Background information from the source Information User Walter N. Meier, Florence Fetterer, Ann Windnagel, J. Scott Stewart, Trey Stafford principal investigator, author, author, software developer, software developer This data set provides a near-real-time (NRT) passive microwave sea ice concentration climate data record (CDR) based on gridded brightness temperatures (TBs) from the Defense Meteorological Satellite Program (DMSP) passive microwave radiometer: the Special Sensor Microwave Imager/Sounder (SSMIS) F17. The sea ice concentration CDR is an estimate of sea ice concentration that is produced by combining concentration estimates from two algorithms developed at the NASA Goddard Space Flight Center (GSFC): the NASA Team algorithm and the Bootstrap algorithm. The individual algorithms are used to process and combine brightness temperature data at National Snow and Ice Data Center (NSIDC). This product is designed to provide an NRT time series of sea ice concentrations (the fraction, or percentage, of ocean area covered by sea ice). The data are gridded on the NSIDC polar stereographic grid with 25 x 25 km grid cells and are available in Network Common Data Format (NetCDF) file format. Each file contains a variable with the CDR concentration values as well as variables that hold the NASA Team and Bootstrap processed concentrations for reference. Variables containing standard deviation, quality flags, and projection information are also included. This project was supported in part by a grant from the NOAA Climate Data Record Program. The NASA Team and Bootstrap sea ice concentration algorithms were developed by Donald J. Cavalieri, Josefino C. Comiso, Claire L. Parkinson, and others at the NASA Goddard Space Flight Center in Greenbelt, MD. Point of contact NSIDC/NOAA nsidc@nsidc.org 3 information web browser Background Information Background information from the source Information geoscientificInformation boundingExtent true NaN NaN NaN NaN 2024-07-02T00:00:00Z 2026-02-22T00:00:00Z Ocean > Southern Ocean > Weddell Sea Ocean > Southern Ocean > Ross Sea Ocean > Southern Ocean > Bellingshausen Sea Ocean > Southern Ocean Geographic Region > Southern Hemisphere Geographic Region > Polar Earth Science > Cryosphere > Sea Ice > Sea Ice Concentration Theme GCMD Science Keywords NOAA/NSIDC passive microwave sea ice concentration climate data record Theme time projection_y_coordinate projection_x_coordinate status_flag status_flag status_flag sea_ice_area_fraction Theme CF Standard Name Table (v83, 17 October 2023) No constraints on data access or use NOAA/NSIDC passive microwave sea ice concentration climate data record Larger work citation Project Grid Unidata Common Data Model Grid Larger work citation Project Sea Ice Concentration, NOAA/NSIDC NRT Climate Data Record V3, Southern Hemisphere, 25km, Near Real-Time, 2024-Present, Daily 2026-03-11T07:05:45.109-07:00 Creation Originator NSIDC/NOAA nsidc@nsidc.org 3 information web browser Background Information Background information from the source Information User Walter N. Meier, Florence Fetterer, Ann Windnagel, J. Scott Stewart, Trey Stafford principal investigator, author, author, software developer, software developer boundingExtent true NaN NaN NaN NaN 2024-07-02T00:00:00Z 2026-02-22T00:00:00Z ERDDAP griddap Sea Ice Concentration, NOAA/NSIDC NRT Climate Data Record V3, Southern Hemisphere, 25km, Near Real-Time, 2024-Present, Daily 2026-03-11T07:05:45.109-07:00 Creation polarwatch.noaa.gov nsidcG10016v3sh1day Originator NSIDC/NOAA nsidc@nsidc.org 3 information web browser Background Information Background information from the source Information User Walter N. Meier, Florence Fetterer, Ann Windnagel, J. Scott Stewart, Trey Stafford principal investigator, author, author, software developer, software developer This data set provides a near-real-time (NRT) passive microwave sea ice concentration climate data record (CDR) based on gridded brightness temperatures (TBs) from the Defense Meteorological Satellite Program (DMSP) passive microwave radiometer: the Special Sensor Microwave Imager/Sounder (SSMIS) F17. The sea ice concentration CDR is an estimate of sea ice concentration that is produced by combining concentration estimates from two algorithms developed at the NASA Goddard Space Flight Center (GSFC): the NASA Team algorithm and the Bootstrap algorithm. The individual algorithms are used to process and combine brightness temperature data at National Snow and Ice Data Center (NSIDC). This product is designed to provide an NRT time series of sea ice concentrations (the fraction, or percentage, of ocean area covered by sea ice). The data are gridded on the NSIDC polar stereographic grid with 25 x 25 km grid cells and are available in Network Common Data Format (NetCDF) file format. Each file contains a variable with the CDR concentration values as well as variables that hold the NASA Team and Bootstrap processed concentrations for reference. Variables containing standard deviation, quality flags, and projection information are also included. This project was supported in part by a grant from the NOAA Climate Data Record Program. The NASA Team and Bootstrap sea ice concentration algorithms were developed by Donald J. Cavalieri, Josefino C. Comiso, Claire L. Parkinson, and others at the NASA Goddard Space Flight Center in Greenbelt, MD. Point of contact NSIDC/NOAA nsidc@nsidc.org 3 information web browser Background Information Background information from the source Information geoscientificInformation boundingExtent true NaN NaN NaN NaN 2024-07-02T00:00:00Z 2026-02-22T00:00:00Z Ocean > Southern Ocean > Weddell Sea Ocean > Southern Ocean > Ross Sea Ocean > Southern Ocean > Bellingshausen Sea Ocean > Southern Ocean Geographic Region > Southern Hemisphere Geographic Region > Polar Earth Science > Cryosphere > Sea Ice > Sea Ice Concentration Theme GCMD Science Keywords NOAA/NSIDC passive microwave sea ice concentration climate data record Theme time projection_y_coordinate projection_x_coordinate status_flag status_flag status_flag sea_ice_area_fraction Theme CF Standard Name Table (v83, 17 October 2023) No constraints on data access or use NOAA/NSIDC passive microwave sea ice concentration climate data record Larger work citation Project Grid Unidata Common Data Model Grid Larger work citation Project ERDDAPgriddapDatasetQueryAndAccess nsidcG10016v3sh1day ERDDAP:griddap ERDDAP-griddap ERDDAP's griddap service (a flavor of OPeNDAP) for gridded data. Add different extensions (e.g., .html, .graph, .das, .dds) to the base URL for different purposes. Download Sea Ice Concentration, NOAA/NSIDC NRT Climate Data Record V3, Southern Hemisphere, 25km, Near Real-Time, 2024-Present, Daily 2026-03-11T07:05:45.109-07:00 Creation Originator NSIDC/NOAA nsidc@nsidc.org 3 information web browser Background Information Background information from the source Information User Walter N. Meier, Florence Fetterer, Ann Windnagel, J. Scott Stewart, Trey Stafford principal investigator, author, author, software developer, software developer boundingExtent true NaN NaN NaN NaN 2024-07-02T00:00:00Z 2026-02-22T00:00:00Z OPeNDAP Sea Ice Concentration, NOAA/NSIDC NRT Climate Data Record V3, Southern Hemisphere, 25km, Near Real-Time, 2024-Present, Daily 2026-03-11T07:05:45.109-07:00 Creation polarwatch.noaa.gov nsidcG10016v3sh1day Originator NSIDC/NOAA nsidc@nsidc.org 3 information web browser Background Information Background information from the source Information User Walter N. Meier, Florence Fetterer, Ann Windnagel, J. Scott Stewart, Trey Stafford principal investigator, author, author, software developer, software developer This data set provides a near-real-time (NRT) passive microwave sea ice concentration climate data record (CDR) based on gridded brightness temperatures (TBs) from the Defense Meteorological Satellite Program (DMSP) passive microwave radiometer: the Special Sensor Microwave Imager/Sounder (SSMIS) F17. The sea ice concentration CDR is an estimate of sea ice concentration that is produced by combining concentration estimates from two algorithms developed at the NASA Goddard Space Flight Center (GSFC): the NASA Team algorithm and the Bootstrap algorithm. The individual algorithms are used to process and combine brightness temperature data at National Snow and Ice Data Center (NSIDC). This product is designed to provide an NRT time series of sea ice concentrations (the fraction, or percentage, of ocean area covered by sea ice). The data are gridded on the NSIDC polar stereographic grid with 25 x 25 km grid cells and are available in Network Common Data Format (NetCDF) file format. Each file contains a variable with the CDR concentration values as well as variables that hold the NASA Team and Bootstrap processed concentrations for reference. Variables containing standard deviation, quality flags, and projection information are also included. This project was supported in part by a grant from the NOAA Climate Data Record Program. The NASA Team and Bootstrap sea ice concentration algorithms were developed by Donald J. Cavalieri, Josefino C. Comiso, Claire L. Parkinson, and others at the NASA Goddard Space Flight Center in Greenbelt, MD. Point of contact NSIDC/NOAA nsidc@nsidc.org 3 information web browser Background Information Background information from the source Information geoscientificInformation boundingExtent true NaN NaN NaN NaN 2024-07-02T00:00:00Z 2026-02-22T00:00:00Z Ocean > Southern Ocean > Weddell Sea Ocean > Southern Ocean > Ross Sea Ocean > Southern Ocean > Bellingshausen Sea Ocean > Southern Ocean Geographic Region > Southern Hemisphere Geographic Region > Polar Earth Science > Cryosphere > Sea Ice > Sea Ice Concentration Theme GCMD Science Keywords NOAA/NSIDC passive microwave sea ice concentration climate data record Theme time projection_y_coordinate projection_x_coordinate status_flag status_flag status_flag sea_ice_area_fraction Theme CF Standard Name Table (v83, 17 October 2023) No constraints on data access or use NOAA/NSIDC passive microwave sea ice concentration climate data record Larger work citation Project Grid Unidata Common Data Model Grid Larger work citation Project OPeNDAPDatasetQueryAndAccess nsidcG10016v3sh1day OPeNDAP:OPeNDAP OPeNDAP An OPeNDAP service for tabular (sequence) data. Add different extensions (e.g., .html, .das, .dds) to the base URL for different purposes Download Physical measurement cdr_seaice_conc_interp_spatial_flag ubyte NOAA/NSIDC CDR of Passive Microwave Sea Ice Concentration spatial interpolation flags cdr_seaice_conc_qa_flag ubyte NOAA/NSIDC CDR of Passive Microwave Sea Ice Concentration QA flags cdr_seaice_conc_interp_temporal_flag ubyte NOAA/NSIDC CDR of Passive Microwave Sea Ice Concentration temporal interpolation flags cdr_seaice_conc double NOAA/NSIDC CDR of Passive Microwave Sea Ice Concentration cdr_seaice_conc_stdev float NOAA/NSIDC CDR of Passive Microwave Sea Ice Concentration Source Estimated Standard Deviation OPeNDAP DAP/2.0 Distributor NOAA PolarWatch Roy Mendelssohn +1 831-420-3666 Voice 110 McAllister Way Santa Cruz CA 95062 USA roy.mendelssohn@noaa.gov ERDDAP administrator OPeNDAP DAP/2.0 nsidcG10016v3sh1day.html order Data Subset Form ERDDAP's version of the OPeNDAP .html web page for this dataset. Specify a subset of the dataset and download the data via OPeNDAP or in many different file types. Download nsidcG10016v3sh1day.graph order Make-A-Graph Form ERDDAP's Make-A-Graph .html web page for this dataset. Create an image with a map or graph of a subset of the data. Download This record was created from dataset metadata by ERDDAP Version 2.29.0 Dataset dataset Service service