NOAA PolarWatch ERDDAP
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griddap Subset tabledap Make A Graph wms files Title Summary FGDC ISO 19115 Info Background Info RSS Email Institution Dataset ID
https://polarwatch.noaa.gov/erddap/griddap/usnic_ims_4km https://polarwatch.noaa.gov/erddap/griddap/usnic_ims_4km.graph https://polarwatch.noaa.gov/erddap/files/usnic_ims_4km/ IMS Snow and Ice Analysis, Arctic, 4km, 2004 - Present, Daily This file contains a map of snow cover and ice cover for the Northern Hemisphere produced by the Interactive Multisensor Snow and Ice Mapping System (IMS). The map is nowcasted to be valid at the moment specified by the time variable. The input data used to generate the map originates between the time_coverage_start and time_coverage_end global attributes. Analysts at the United States National Ice Center (USNIC) use a variety of geostationary and polar orbiting satellite imagery, derived products, in situ, and other data sources to interactively create the map. The system has produced daily analyses from February 1997 to Dec 2014, and twice daily analyses since.\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][y][x]):\nIMS_Surface_Values (IMS maps of 0: no data, 1:open water, 2:land, 3:sea/lake ice, 4:snow cover for the Northern Hemisphere)\n https://polarwatch.noaa.gov/erddap/info/usnic_ims_4km/index.htmlTable https://nsidc.org/data/G02156 (external link) https://polarwatch.noaa.gov/erddap/rss/usnic_ims_4km.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=usnic_ims_4km&showErrors=false&email= USNIC usnic_ims_4km
https://polarwatch.noaa.gov/erddap/griddap/noaacwSARnrcsnpoleDaily https://polarwatch.noaa.gov/erddap/griddap/noaacwSARnrcsnpoleDaily.graph https://polarwatch.noaa.gov/erddap/files/noaacwSARnrcsnpoleDaily/ Normalized Radar Cross Section, SAR Composite, Near Real-Time, 1km, North Pole, Daily This file contains a composite of Synthetic Aperture Radar (SAR) Normalized Radar Cross Section (NRCS) images covering the Arctic for a period of one day. The files are produced in SAROPS (SAR Operational Product System) by the Water Surface Conditions/Sea Surface Roughness group within the NOAA STAR Satellite Oceanography and Climatology Division. Data from the following C-Band SAR systems are included: Sentinel-1A/B, RADARSAT-2, and RADARSAT Constellation Mission. NRCS values have been calibrated with values given by the SAR data provider. Daily coverage may vary due to limitations in data availability.\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][level][y][x]):\nNRCS (Normalized Radar Cross Section, 1)\n https://polarwatch.noaa.gov/erddap/info/noaacwSARnrcsnpoleDaily/index.htmlTable https://www.star.nesdis.noaa.gov/socd/mecb/sar/index.html (external link) https://polarwatch.noaa.gov/erddap/rss/noaacwSARnrcsnpoleDaily.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=noaacwSARnrcsnpoleDaily&showErrors=false&email= NOAA/NESDIS/STAR/SOCD noaacwSARnrcsnpoleDaily
https://polarwatch.noaa.gov/erddap/griddap/nsidcCDRice_nh_grid https://polarwatch.noaa.gov/erddap/griddap/nsidcCDRice_nh_grid.graph https://polarwatch.noaa.gov/erddap/files/nsidcCDRice_nh_grid/ Sea Ice Concentration Lat-Lon Grid, NOAA/NSIDC Climate Data Record, Northern Hemisphere, 25km This ERDDAP data set provides the latitude - longitude grid for the Arctic (Northern Hemisphere) NSIDC passive microwave sea ice concentration climate data record (CDR) datasets distributed via the PolarWatch ERDDAP. The grid used for these datasets is the NSIDC polar stereographic grid with 25 x 25 km grid cells. The input netCDF files from NSIDC contain data variables and reference latitude and longitude variables. These are provided in this ERDDAP as separate datasets based on system architecture requirements.\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [ygrid][xgrid]):\nlongitude (degrees_east)\nlatitude (degrees_north)\n https://polarwatch.noaa.gov/erddap/info/nsidcCDRice_nh_grid/index.htmlTable https://nsidc.org/data/g02202 (external link) https://polarwatch.noaa.gov/erddap/rss/nsidcCDRice_nh_grid.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=nsidcCDRice_nh_grid&showErrors=false&email= NSIDC > National Snow and Ice Data Center, NOAA nsidcCDRice_nh_grid
https://polarwatch.noaa.gov/erddap/griddap/nsidcG02202v4nh1day https://polarwatch.noaa.gov/erddap/griddap/nsidcG02202v4nh1day.graph https://polarwatch.noaa.gov/erddap/files/nsidcG02202v4nh1day/ Sea Ice Concentration, NOAA/NSIDC Climate Data Record V4, Northern Hemisphere, 25km, Science Quality, 1978-Present, Daily This data set provides a passive microwave sea ice concentration climate data record (CDR) based on gridded brightness temperatures (TBs) from the Defense Meteorological Satellite Program (DMSP) series of passive microwave radiometers: the Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR), the Special Sensor Microwave Imager (SSM/I) and the Special Sensor Microwave Imager/Sounder (SSMIS). 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 a consistent time series of sea ice concentrations (the fraction, or percentage, of ocean area covered by sea ice) from November 1978 to the present which spans the coverage of several passive microwave instruments. 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. Data are available from NSIDC via FTP see https://nsidc.org/data/G02202/versions/4/. Data are also distributed via the PolarWatch ERDDAP at https://polarwatch.noaa.gov/erddap. Note that the data format available through PolarWatch is different from the NSIDC FTP NetCDF files. The PolarWatch data server stores projection information as global attributes (with the prefix grid_mapping) instead of as a variable; and the timestamp is served in different units (seconds since 1970).\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][ygrid][xgrid]):\ncdr_seaice_conc (NOAA/NSIDC Climate Data Record of Passive Microwave Daily Northern Hemisphere Sea Ice Concentration, 1)\nmelt_onset_day_cdr_seaice_conc (Day of Snow Melt Onset Over Sea Ice, 1)\nnsidc_bt_seaice_conc (Passive Microwave Daily Northern Hemisphere Sea Ice Concentration by Bootstrap algorithm processed by NSIDC, 1)\nnsidc_nt_seaice_conc (Passive Microwave Daily Northern Hemisphere Sea Ice Concentration by NASA Team algorithm processed by NSIDC, 1)\nqa_of_cdr_seaice_conc (Passive Microwave Daily Northern Hemisphere Sea Ice Concentration QC flags)\nspatial_interpolation_flag (Passive Microwave Daily Northern Hemisphere Sea Ice Concentration spatial interpolation flags)\nstdev_of_cdr_seaice_conc (Passive Microwave Daily Northern Hemisphere Sea Ice Concentration Source Estimated Standard Deviation)\ntemporal_interpolation_flag (Passive Microwave Daily Northern Hemisphere Sea Ice Concentration temporal interpolation flags)\n https://polarwatch.noaa.gov/erddap/info/nsidcG02202v4nh1day/index.htmlTable https://nsidc.org/ (external link) https://polarwatch.noaa.gov/erddap/rss/nsidcG02202v4nh1day.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=nsidcG02202v4nh1day&showErrors=false&email= NSIDC > National Snow and Ice Data Center nsidcG02202v4nh1day
https://polarwatch.noaa.gov/erddap/griddap/nsidcG02202v4nhmday https://polarwatch.noaa.gov/erddap/griddap/nsidcG02202v4nhmday.graph https://polarwatch.noaa.gov/erddap/files/nsidcG02202v4nhmday/ Sea Ice Concentration, NOAA/NSIDC Climate Data Record V4, Northern Hemisphere, 25km, Science Quality, 1978-Present, Monthly This data set provides a passive microwave sea ice concentration climate data record (CDR) based on gridded brightness temperatures (TBs) from the Defense Meteorological Satellite Program (DMSP) series of passive microwave radiometers: the Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR), the Special Sensor Microwave Imager (SSM/I) and the Special Sensor Microwave Imager/Sounder (SSMIS). 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 a consistent time series of sea ice concentrations (the fraction, or percentage, of ocean area covered by sea ice) from November 1978 to the present which spans the coverage of several passive microwave instruments. 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 concentrations for reference. Variables containing standard deviation, quality flags, and projection information are also included. Data are available from NSIDC via FTP see https://nsidc.org/data/G02202/versions/4/. Data are also distributed via the PolarWatch ERDDAP at https://polarwatch.noaa.gov/erddap. Note that the data format available through PolarWatch is different from the NSIDC FTP NetCDF files. The PolarWatch data server stores projection information as global attributes (with the prefix grid_mapping) instead of as a variable; and the timestamp is served in different units (seconds since 1970).\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][ygrid][xgrid]):\ncdr_seaice_conc_monthly (NOAA/NSIDC Climate Data Record of Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration, 1)\nmelt_onset_day_cdr_seaice_conc_monthly (Monthly Day of Snow Melt Onset Over Sea Ice, 1)\nnsidc_bt_seaice_conc_monthly (Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration by Bootstrap algorithm processed by NSIDC, 1)\nnsidc_nt_seaice_conc_monthly (Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration by NASA Team algorithm processed by NSIDC, 1)\nqa_of_cdr_seaice_conc_monthly (Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration QC flags)\nstdev_of_cdr_seaice_conc_monthly (Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration Source Estimated Standard Deviation)\n https://polarwatch.noaa.gov/erddap/info/nsidcG02202v4nhmday/index.htmlTable https://nsidc.org/data/g02202/versions/4/ (external link) https://polarwatch.noaa.gov/erddap/rss/nsidcG02202v4nhmday.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=nsidcG02202v4nhmday&showErrors=false&email= NSIDC > National Snow and Ice Data Center nsidcG02202v4nhmday
https://polarwatch.noaa.gov/erddap/griddap/nsidcG02202v4sh1day https://polarwatch.noaa.gov/erddap/griddap/nsidcG02202v4sh1day.graph https://polarwatch.noaa.gov/erddap/files/nsidcG02202v4sh1day/ Sea Ice Concentration, NOAA/NSIDC Climate Data Record V4, Southern Hemisphere, 25km, Science Quality, 1978-Present, Daily This data set provides a passive microwave sea ice concentration climate data record (CDR) based on gridded brightness temperatures (TBs) from the Defense Meteorological Satellite Program (DMSP) series of passive microwave radiometers: the Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR), the Special Sensor Microwave Imager (SSM/I) and the Special Sensor Microwave Imager/Sounder (SSMIS). 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 temperatures at National Snow and Ice Data Center (NSIDC). This product is designed to provide a consistent time series of sea ice concentrations (the fraction, or percentage, of ocean area covered by sea ice) from November 1978 to the present which spans the coverage of several passive microwave instruments. 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. Data are available from NSIDC via FTP see https://nsidc.org/data/G02202/versions/4/. Data are also distributed via the PolarWatch ERDDAP at https://polarwatch.noaa.gov/erddap. Note that the data format available through PolarWatch is different from the NSIDC FTP NetCDF files. The PolarWatch data server stores projection information as global attributes (with the prefix grid_mapping) instead of as a variable; and the timestamp is served in different units (seconds since 1970).\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][ygrid][xgrid]):\ncdr_seaice_conc (NOAA/NSIDC Climate Data Record of Passive Microwave Daily Southern Hemisphere Sea Ice Concentration, 1)\nnsidc_bt_seaice_conc (Passive Microwave Daily Southern Hemisphere Sea Ice Concentration by Bootstrap algorithm processed by NSIDC, 1)\nnsidc_nt_seaice_conc (Passive Microwave Daily Southern Hemisphere Sea Ice Concentration by NASA Team algorithm processed by NSIDC, 1)\nqa_of_cdr_seaice_conc (Passive Microwave Daily Southern Hemisphere Sea Ice Concentration QC flags)\nspatial_interpolation_flag (Passive Microwave Daily Southern Hemisphere Sea Ice Concentration spatial interpolation flags)\nstdev_of_cdr_seaice_conc (Passive Microwave Daily Southern Hemisphere Sea Ice Concentration Source Estimated Standard Deviation)\ntemporal_interpolation_flag (Passive Microwave Daily Southern Hemisphere Sea Ice Concentration temporal interpolation flags)\n https://polarwatch.noaa.gov/erddap/info/nsidcG02202v4sh1day/index.htmlTable https://nsidc.org/ (external link) https://polarwatch.noaa.gov/erddap/rss/nsidcG02202v4sh1day.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=nsidcG02202v4sh1day&showErrors=false&email= NSIDC > National Snow and Ice Data Center nsidcG02202v4sh1day
https://polarwatch.noaa.gov/erddap/griddap/nsidcG02202v4shmday https://polarwatch.noaa.gov/erddap/griddap/nsidcG02202v4shmday.graph https://polarwatch.noaa.gov/erddap/files/nsidcG02202v4shmday/ Sea Ice Concentration, NOAA/NSIDC Climate Data Record V4, Southern Hemisphere, 25km, Science Quality, 1978-Present, Monthly This data set provides a passive microwave sea ice concentration climate data record (CDR) based on gridded brightness temperatures (TBs) from the Defense Meteorological Satellite Program (DMSP) series of passive microwave radiometers: the Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR), the Special Sensor Microwave Imager (SSM/I) and the Special Sensor Microwave Imager/Sounder (SSMIS). 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 a consistent time series of sea ice concentrations (the fraction, or percentage, of ocean area covered by sea ice) from November 1978 to the present which spans the coverage of several passive microwave instruments. 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 concentrations for reference. Variables containing standard deviation, quality flags, and projection information are also included. Data are available from NSIDC via FTP see https://nsidc.org/data/G02202/versions/4/. Data are also distributed via the PolarWatch ERDDAP at https://polarwatch.noaa.gov/erddap. Note that the data format available through PolarWatch is different from the NSIDC FTP NetCDF files. The PolarWatch data server stores projection information as global attributes (with the prefix grid_mapping) instead of as a variable; and the timestamp is served in different units (seconds since 1970).\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][ygrid][xgrid]):\ncdr_seaice_conc_monthly (NOAA/NSIDC Climate Data Record of Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration, 1)\nnsidc_bt_seaice_conc_monthly (Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration by Bootstrap algorithm processed by NSIDC, 1)\nnsidc_nt_seaice_conc_monthly (Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration by NASA Team algorithm processed by NSIDC, 1)\nqa_of_cdr_seaice_conc_monthly (Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration QC flags)\nstdev_of_cdr_seaice_conc_monthly (Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration Source Estimated Standard Deviation)\n https://polarwatch.noaa.gov/erddap/info/nsidcG02202v4shmday/index.htmlTable https://nsidc.org/data/g02202/versions/4/ (external link) https://polarwatch.noaa.gov/erddap/rss/nsidcG02202v4shmday.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=nsidcG02202v4shmday&showErrors=false&email= NSIDC > National Snow and Ice Data Center nsidcG02202v4shmday
https://polarwatch.noaa.gov/erddap/griddap/nsidcG10016v2nh1day https://polarwatch.noaa.gov/erddap/griddap/nsidcG10016v2nh1day.graph https://polarwatch.noaa.gov/erddap/files/nsidcG10016v2nh1day/ Sea Ice Concentration, NOAA/NSIDC NRT Climate Data Record V2, Northern Hemisphere, 25km, Near Real-Time, 2021-Present, Daily This data set provides a passive microwave sea ice concentration climate data record (CDR) based on gridded brightness temperatures (TBs) from the Defense Meteorological Satellite Program (DMSP) series of passive microwave radiometers, currently the Special Sensor Microwave Imager/Sounder (SSMIS). 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 extend a consistent time series of sea ice concentrations (the fraction, or percentage, of ocean area covered by sea ice) from the end of the NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration Version 4 dataset which spans the coverage of several passive microwave instruments. 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. Data are available from NSIDC via FTP see https://nsidc.org/data/G10016/versions/2/. Data are also distributed via the PolarWatch ERDDAP at https://polarwatch.noaa.gov/erddap. Note that the data format available through PolarWatch is slightly different from the NSIDC FTP NetCDF files. The PolarWatch data server stores projection information as global attributes (with the prefix grid_mapping) instead of as a variable; and the timestamp is served in different units (seconds since 1970).\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][ygrid][xgrid]):\ncdr_seaice_conc (NOAA/NSIDC Climate Data Record of Passive Microwave Daily Northern Hemisphere Sea Ice Concentration, 1)\nmelt_onset_day_cdr_seaice_conc (Day of Snow Melt Onset Over Sea Ice, 1)\nnsidc_bt_seaice_conc (Passive Microwave Daily Northern Hemisphere Sea Ice Concentration by Bootstrap algorithm processed by NSIDC, 1)\nnsidc_nt_seaice_conc (Passive Microwave Daily Northern Hemisphere Sea Ice Concentration by NASA Team algorithm processed by NSIDC, 1)\nqa_of_cdr_seaice_conc (Passive Microwave Daily Northern Hemisphere Sea Ice Concentration QC flags)\nspatial_interpolation_flag (Passive Microwave Daily Northern Hemisphere Sea Ice Concentration spatial interpolation flags)\nstdev_of_cdr_seaice_conc (Passive Microwave Daily Northern Hemisphere Sea Ice Concentration Source Estimated Standard Deviation)\ntemporal_interpolation_flag (Passive Microwave Daily Northern Hemisphere Sea Ice Concentration temporal interpolation flags)\n https://polarwatch.noaa.gov/erddap/info/nsidcG10016v2nh1day/index.htmlTable https://nsidc.org/ (external link) https://polarwatch.noaa.gov/erddap/rss/nsidcG10016v2nh1day.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=nsidcG10016v2nh1day&showErrors=false&email= NSIDC > National Snow and Ice Data Center nsidcG10016v2nh1day
https://polarwatch.noaa.gov/erddap/griddap/nsidcG10016v2nhmday https://polarwatch.noaa.gov/erddap/griddap/nsidcG10016v2nhmday.graph https://polarwatch.noaa.gov/erddap/files/nsidcG10016v2nhmday/ Sea Ice Concentration, NOAA/NSIDC NRT Climate Data Record V2, Northern Hemisphere, 25km, Near Real-Time, 2021-Present, Monthly This data set provides a passive microwave sea ice concentration climate data record (CDR) based on gridded brightness temperatures (TBs) from the Defense Meteorological Satellite Program (DMSP) series of passive microwave radiometers: the Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR), the Special Sensor Microwave Imager (SSM/I) and the Special Sensor Microwave Imager/Sounder (SSMIS). 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 a consistent time series of sea ice concentrations (the fraction, or percentage, of ocean area covered by sea ice) from November 1978 to the present which spans the coverage of several passive microwave instruments. 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. Data are available from NSIDC via FTP see https://nsidc.org/data/G10016/versions/2/. Data are also distributed via the PolarWatch ERDDAP at https://polarwatch.noaa.gov/erddap. Note that the data format available through PolarWatch is slightly different from the NSIDC FTP NetCDF files. The PolarWatch data server stores projection information as global attributes (with the prefix grid_mapping) instead of as a variable; and the timestamp is served in different units (seconds since 1970).\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][ygrid][xgrid]):\ncdr_seaice_conc_monthly (NOAA/NSIDC Climate Data Record of Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration, 1)\nmelt_onset_day_cdr_seaice_conc_monthly (Monthly Day of Snow Melt Onset Over Sea Ice, 1)\nnsidc_bt_seaice_conc_monthly (Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration by Bootstrap algorithm processed by NSIDC, 1)\nnsidc_nt_seaice_conc_monthly (Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration by NASA Team algorithm processed by NSIDC, 1)\nqa_of_cdr_seaice_conc_monthly (Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration QC flags)\nstdev_of_cdr_seaice_conc_monthly (Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration Source Estimated Standard Deviation)\n https://polarwatch.noaa.gov/erddap/info/nsidcG10016v2nhmday/index.htmlTable https://nsidc.org/data/G10016/versions/2/ (external link) https://polarwatch.noaa.gov/erddap/rss/nsidcG10016v2nhmday.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=nsidcG10016v2nhmday&showErrors=false&email= NSIDC > National Snow and Ice Data Center nsidcG10016v2nhmday
https://polarwatch.noaa.gov/erddap/griddap/nsidcG10016v2sh1day https://polarwatch.noaa.gov/erddap/griddap/nsidcG10016v2sh1day.graph https://polarwatch.noaa.gov/erddap/files/nsidcG10016v2sh1day/ Sea Ice Concentration, NOAA/NSIDC NRT Climate Data Record V2, Southern Hemisphere, 25km, Near Real-Time, 2021-Present, Daily This data set provides a passive microwave sea ice concentration climate data record (CDR) based on gridded brightness temperatures (TBs) from the Defense Meteorological Satellite Program (DMSP) series of passive microwave radiometers: the Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR), the Special Sensor Microwave Imager (SSM/I) and the Special Sensor Microwave Imager/Sounder (SSMIS). 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 a consistent time series of sea ice concentrations (the fraction, or percentage, of ocean area covered by sea ice) from November 1978 to the present which spans the coverage of several passive microwave instruments. 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. Data are available via FTP.\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][ygrid][xgrid]):\ncdr_seaice_conc (NOAA/NSIDC Climate Data Record of Passive Microwave Daily Southern Hemisphere Sea Ice Concentration, 1)\nnsidc_bt_seaice_conc (Passive Microwave Daily Southern Hemisphere Sea Ice Concentration by Bootstrap algorithm processed by NSIDC, 1)\nnsidc_nt_seaice_conc (Passive Microwave Daily Southern Hemisphere Sea Ice Concentration by NASA Team algorithm processed by NSIDC, 1)\nqa_of_cdr_seaice_conc (Passive Microwave Daily Southern Hemisphere Sea Ice Concentration QC flags)\nspatial_interpolation_flag (Passive Microwave Daily Southern Hemisphere Sea Ice Concentration spatial interpolation flags)\nstdev_of_cdr_seaice_conc (Passive Microwave Daily Southern Hemisphere Sea Ice Concentration Source Estimated Standard Deviation)\ntemporal_interpolation_flag (Passive Microwave Daily Southern Hemisphere Sea Ice Concentration temporal interpolation flags)\n https://polarwatch.noaa.gov/erddap/info/nsidcG10016v2sh1day/index.htmlTable https://nsidc.org/ (external link) https://polarwatch.noaa.gov/erddap/rss/nsidcG10016v2sh1day.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=nsidcG10016v2sh1day&showErrors=false&email= NSIDC > National Snow and Ice Data Center nsidcG10016v2sh1day
https://polarwatch.noaa.gov/erddap/griddap/nsidcG10016v2shmday https://polarwatch.noaa.gov/erddap/griddap/nsidcG10016v2shmday.graph https://polarwatch.noaa.gov/erddap/files/nsidcG10016v2shmday/ Sea Ice Concentration, NOAA/NSIDC NRT Climate Data Record V2, Southern Hemisphere, 25km, Near Real-Time, 2021-Present, Monthly This data set provides a passive microwave sea ice concentration climate data record (CDR) based on gridded brightness temperatures (TBs) from the Defense Meteorological Satellite Program (DMSP) series of passive microwave radiometers: the Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR), the Special Sensor Microwave Imager (SSM/I) and the Special Sensor Microwave Imager/Sounder (SSMIS). 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 a consistent time series of sea ice concentrations (the fraction, or percentage, of ocean area covered by sea ice) from November 1978 to the present which spans the coverage of several passive microwave instruments. 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. Data are available via FTP from NSIDC. Note that the data format available through PolarWatch is slightly different from the NSIDC FTP NetCDF files. The PolarWatch data server requires storing the projection information as global attributes with the prefix grid_mapping instead of as a projection variable and the timestamp is served in different units (seconds since 1970).\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][ygrid][xgrid]):\ncdr_seaice_conc_monthly (NOAA/NSIDC Climate Data Record of Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration, 1)\nnsidc_bt_seaice_conc_monthly (Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration by Bootstrap algorithm processed by NSIDC, 1)\nnsidc_nt_seaice_conc_monthly (Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration by NASA Team algorithm processed by NSIDC, 1)\nqa_of_cdr_seaice_conc_monthly (Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration QC flags)\nstdev_of_cdr_seaice_conc_monthly (Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration Source Estimated Standard Deviation)\n https://polarwatch.noaa.gov/erddap/info/nsidcG10016v2shmday/index.htmlTable https://nsidc.org/data/G10016/versions/2/ (external link) https://polarwatch.noaa.gov/erddap/rss/nsidcG10016v2shmday.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=nsidcG10016v2shmday&showErrors=false&email= NSIDC > National Snow and Ice Data Center nsidcG10016v2shmday
https://polarwatch.noaa.gov/erddap/griddap/erdPH2ssta8day https://polarwatch.noaa.gov/erddap/griddap/erdPH2ssta8day.graph https://polarwatch.noaa.gov/erddap/wms/erdPH2ssta8day/request https://polarwatch.noaa.gov/erddap/files/erdPH2ssta8day/ SST, Pathfinder Ver 5.2 (L3C), Day and Night, Global, 0.0417°, 1981-2006, Science Quality (8 Day Composite) This dataset contains sea surface temperature (SST) data produced as part of the Advanced Very High Resolution Radiometer (AVHRR) Pathfinder SST Project, created using Version 5.2 of the Pathfinder algorithm and the dataset. Multi-day composites and composites of day and night datasets were generated by the Environmental Research Division (NOAA/NMFS/SWFSC/ERD).\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][latitude][longitude]):\nsea_surface_temperature (Sea Surface Skin Temperature, degree_C)\nsea_ice_fraction (1)\nwind_speed (10m Wind Speed, m s-1)\nl2p_flags\n https://polarwatch.noaa.gov/erddap/metadata/fgdc/xml/erdPH2ssta8day_fgdc.xml https://polarwatch.noaa.gov/erddap/metadata/iso19115/xml/erdPH2ssta8day_iso19115.xml https://polarwatch.noaa.gov/erddap/info/erdPH2ssta8day/index.htmlTable https://pathfinder.nodc.noaa.gov (external link) https://polarwatch.noaa.gov/erddap/rss/erdPH2ssta8day.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=erdPH2ssta8day&showErrors=false&email= NOAA NCEI erdPH2ssta8day
https://polarwatch.noaa.gov/erddap/griddap/erdPH2ssta1day https://polarwatch.noaa.gov/erddap/griddap/erdPH2ssta1day.graph https://polarwatch.noaa.gov/erddap/wms/erdPH2ssta1day/request https://polarwatch.noaa.gov/erddap/files/erdPH2ssta1day/ SST, Pathfinder Ver 5.2 (L3C), Day and Night, Global, 0.0417°, 1981-2012, Science Quality (1 Day Composite) This dataset contains sea surface temperature (SST) data produced as part of the Advanced Very High Resolution Radiometer (AVHRR) Pathfinder SST Project, created using Version 5.2 of the Pathfinder algorithm and the dataset. Multi-day composites and composites of day and night datasets were generated by the Environmental Research Division (NOAA/NMFS/SWFSC/ERD).\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][latitude][longitude]):\nsea_surface_temperature (Sea Surface Skin Temperature, degree_C)\nsea_ice_fraction (1)\nwind_speed (10m Wind Speed, m s-1)\nl2p_flags\n https://polarwatch.noaa.gov/erddap/metadata/fgdc/xml/erdPH2ssta1day_fgdc.xml https://polarwatch.noaa.gov/erddap/metadata/iso19115/xml/erdPH2ssta1day_iso19115.xml https://polarwatch.noaa.gov/erddap/info/erdPH2ssta1day/index.htmlTable https://pathfinder.nodc.noaa.gov (external link) https://polarwatch.noaa.gov/erddap/rss/erdPH2ssta1day.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=erdPH2ssta1day&showErrors=false&email= NOAA NCEI erdPH2ssta1day
https://polarwatch.noaa.gov/erddap/griddap/erdPH2sstamday https://polarwatch.noaa.gov/erddap/griddap/erdPH2sstamday.graph https://polarwatch.noaa.gov/erddap/wms/erdPH2sstamday/request https://polarwatch.noaa.gov/erddap/files/erdPH2sstamday/ SST, Pathfinder Ver 5.2 (L3C), Day and Night, Global, 0.0417°, 1981-2012, Science Quality (Monthly Composite) This dataset contains sea surface temperature (SST) data produced as part of the Advanced Very High Resolution Radiometer (AVHRR) Pathfinder SST Project, created using Version 5.2 of the Pathfinder algorithm and the dataset. Multi-day composites and composites of day and night datasets were generated by the Environmental Research Division (NOAA/NMFS/SWFSC/ERD).\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][latitude][longitude]):\nsea_surface_temperature (Sea Surface Skin Temperature, degree_C)\nsea_ice_fraction (1)\nwind_speed (10m Wind Speed, m s-1)\nl2p_flags\n https://polarwatch.noaa.gov/erddap/metadata/fgdc/xml/erdPH2sstamday_fgdc.xml https://polarwatch.noaa.gov/erddap/metadata/iso19115/xml/erdPH2sstamday_iso19115.xml https://polarwatch.noaa.gov/erddap/info/erdPH2sstamday/index.htmlTable https://pathfinder.nodc.noaa.gov (external link) https://polarwatch.noaa.gov/erddap/rss/erdPH2sstamday.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=erdPH2sstamday&showErrors=false&email= NOAA NCEI erdPH2sstamday
https://polarwatch.noaa.gov/erddap/griddap/erdPH53sstd8day https://polarwatch.noaa.gov/erddap/griddap/erdPH53sstd8day.graph https://polarwatch.noaa.gov/erddap/wms/erdPH53sstd8day/request https://polarwatch.noaa.gov/erddap/files/erdPH53sstd8day/ SST, Pathfinder Ver 5.3 (L3C), Day, Global, 0.0417°, 1981-present, Science Quality (8 Day Composite) This dataset contains 8-day-composites of daytime sea surface temperature (SST) data produced as part of the AVHRR Pathfinder SST Project. The source data were created using Version 5.3 of the Pathfinder algorithm and the file is nearly but not completely compliant with the GHRSST Data Specifications V2.0 (GDS2). Source data were created by the NOAA National Centers for Environmental Information (NCEI). Multi-day composites were created by NOAA CoastWatch-West Coast and NOAA/SWFSC/ERD.\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][latitude][longitude]):\nsea_surface_temperature (NOAA Climate Data Record of Sea Surface Skin Temperature, degree_C)\nsea_ice_fraction (1)\nwind_speed (10m wind speed, m s-1)\nl2p_flags\n https://polarwatch.noaa.gov/erddap/metadata/fgdc/xml/erdPH53sstd8day_fgdc.xml https://polarwatch.noaa.gov/erddap/metadata/iso19115/xml/erdPH53sstd8day_iso19115.xml https://polarwatch.noaa.gov/erddap/info/erdPH53sstd8day/index.htmlTable https://data.nodc.noaa.gov/cgi-bin/iso?id=gov.noaa.nodc:AVHRR_Pathfinder-NCEI-L3C-v5.3 (external link) https://polarwatch.noaa.gov/erddap/rss/erdPH53sstd8day.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=erdPH53sstd8day&showErrors=false&email= NOAA NCEI erdPH53sstd8day
https://polarwatch.noaa.gov/erddap/griddap/erdPH53sstdmday https://polarwatch.noaa.gov/erddap/griddap/erdPH53sstdmday.graph https://polarwatch.noaa.gov/erddap/wms/erdPH53sstdmday/request https://polarwatch.noaa.gov/erddap/files/erdPH53sstdmday/ SST, Pathfinder Ver 5.3 (L3C), Day, Global, 0.0417°, 1981-present, Science Quality (Monthly Composite) This dataset contains monthly composites of daytime sea surface temperature (SST) data produced as part of the AVHRR Pathfinder SST Project. The source data were created using Version 5.3 of the Pathfinder algorithm and the file is nearly but not completely compliant with the GHRSST Data Specifications V2.0 (GDS2). Source data were created by the NOAA National Centers for Environmental Information (NCEI). Multi-day composites were created by NOAA CoastWatch-West Coast and NOAA/SWFSC/ERD.\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][latitude][longitude]):\nsea_surface_temperature (NOAA Climate Data Record of Sea Surface Skin Temperature, degree_C)\nsea_ice_fraction (1)\nwind_speed (10m wind speed, m s-1)\nl2p_flags\n https://polarwatch.noaa.gov/erddap/metadata/fgdc/xml/erdPH53sstdmday_fgdc.xml https://polarwatch.noaa.gov/erddap/metadata/iso19115/xml/erdPH53sstdmday_iso19115.xml https://polarwatch.noaa.gov/erddap/info/erdPH53sstdmday/index.htmlTable https://data.nodc.noaa.gov/cgi-bin/iso?id=gov.noaa.nodc:AVHRR_Pathfinder-NCEI-L3C-v5.3 (external link) https://polarwatch.noaa.gov/erddap/rss/erdPH53sstdmday.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=erdPH53sstdmday&showErrors=false&email= NOAA NCEI erdPH53sstdmday
https://polarwatch.noaa.gov/erddap/griddap/erdPH53sstn8day https://polarwatch.noaa.gov/erddap/griddap/erdPH53sstn8day.graph https://polarwatch.noaa.gov/erddap/wms/erdPH53sstn8day/request https://polarwatch.noaa.gov/erddap/files/erdPH53sstn8day/ SST, Pathfinder Ver 5.3 (L3C), Night, Global, 0.0417°, 1981-present, Science Quality (8 Day Composite) This dataset contains 8-day-composites of nighttime sea surface temperature (SST) data produced as part of the AVHRR Pathfinder SST Project. The source data were created using Version 5.3 of the Pathfinder algorithm and the file is nearly but not completely compliant with the GHRSST Data Specifications V2.0 (GDS2). Source data were created by the NOAA National Centers for Environmental Information (NCEI). Multi-day composites were created by NOAA CoastWatch-West Coast and NOAA/SWFSC/ERD.\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][latitude][longitude]):\nsea_surface_temperature (NOAA Climate Data Record of Sea Surface Skin Temperature, degree_C)\nsea_ice_fraction (1)\nwind_speed (10m wind speed, m s-1)\nl2p_flags\n https://polarwatch.noaa.gov/erddap/metadata/fgdc/xml/erdPH53sstn8day_fgdc.xml https://polarwatch.noaa.gov/erddap/metadata/iso19115/xml/erdPH53sstn8day_iso19115.xml https://polarwatch.noaa.gov/erddap/info/erdPH53sstn8day/index.htmlTable https://data.nodc.noaa.gov/cgi-bin/iso?id=gov.noaa.nodc:AVHRR_Pathfinder-NCEI-L3C-v5.3 (external link) https://polarwatch.noaa.gov/erddap/rss/erdPH53sstn8day.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=erdPH53sstn8day&showErrors=false&email= NOAA NCEI erdPH53sstn8day
https://polarwatch.noaa.gov/erddap/griddap/erdPH53sstnmday https://polarwatch.noaa.gov/erddap/griddap/erdPH53sstnmday.graph https://polarwatch.noaa.gov/erddap/wms/erdPH53sstnmday/request https://polarwatch.noaa.gov/erddap/files/erdPH53sstnmday/ SST, Pathfinder Ver 5.3 (L3C), Night, Global, 0.0417°, 1981-present, Science Quality (Monthly Composite) This dataset contains monthly composites of nighttime sea surface temperature (SST) data produced as part of the AVHRR Pathfinder SST Project. The source data were created using Version 5.3 of the Pathfinder algorithm and the file is nearly but not completely compliant with the GHRSST Data Specifications V2.0 (GDS2). Source data were created by the NOAA National Centers for Environmental Information (NCEI). Multi-day composites were created by NOAA CoastWatch-West Coast and NOAA/SWFSC/ERD.\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][latitude][longitude]):\nsea_surface_temperature (NOAA Climate Data Record of Sea Surface Skin Temperature, degree_C)\nsea_ice_fraction (1)\nwind_speed (10m wind speed, m s-1)\nl2p_flags\n https://polarwatch.noaa.gov/erddap/metadata/fgdc/xml/erdPH53sstnmday_fgdc.xml https://polarwatch.noaa.gov/erddap/metadata/iso19115/xml/erdPH53sstnmday_iso19115.xml https://polarwatch.noaa.gov/erddap/info/erdPH53sstnmday/index.htmlTable https://data.nodc.noaa.gov/cgi-bin/iso?id=gov.noaa.nodc:AVHRR_Pathfinder-NCEI-L3C-v5.3 (external link) https://polarwatch.noaa.gov/erddap/rss/erdPH53sstnmday.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=erdPH53sstnmday&showErrors=false&email= NOAA NCEI erdPH53sstnmday
https://polarwatch.noaa.gov/erddap/griddap/nsidcCDRiceSQsh1day https://polarwatch.noaa.gov/erddap/griddap/nsidcCDRiceSQsh1day.graph https://polarwatch.noaa.gov/erddap/files/nsidcCDRiceSQsh1day/ Z-DEPRECATED - Sea Ice Concentration, NOAA/NSIDC Climate Data Record V3, Antarctic, 25km, Science Quality, 1978-2019, Daily Alert: There is a newer version of this dataset. Please use Version 4 of the NSIDC Sea Ice Concentration CDR with ERDDAP ID:nsidcG02202v4sh1day. Link: https://polarwatch.noaa.gov/erddap/griddap/nsidcG02202v4sh1day.graph. Version 3 Summary: 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. Variables containing standard deviation, quality flags, and projection information are also included.\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][ygrid][xgrid]):\nseaice_conc_cdr (NOAA/NSIDC Climate Data Record of Passive Microwave Daily Southern Hemisphere Sea Ice Concentration, 1)\nstdev_of_seaice_conc_cdr (Passive Microwave Daily Southern Hemisphere Sea Ice Concentration Source Estimated Standard Deviation)\nmelt_onset_day_seaice_conc_cdr (Day of Snow Melt Onset Over Sea Ice, 1)\nqa_of_seaice_conc_cdr (Passive Microwave Daily Southern Hemisphere Sea Ice Concentration QC flags)\ngoddard_merged_seaice_conc (Goddard Edited Climate Data Record of Passive Microwave Daily Southern Hemisphere Sea Ice Concentration, Goddard Edited, 1)\ngoddard_nt_seaice_conc (Passive Microwave Daily Southern Hemisphere Sea Ice Concentration by NASA Team algorithm with Goddard QC, 1)\ngoddard_bt_seaice_conc (Passive Microwave Daily Southern Hemisphere Sea Ice Concentration by Bootstrap algorithm with Goddard QC, 1)\n https://polarwatch.noaa.gov/erddap/info/nsidcCDRiceSQsh1day/index.htmlTable https://nsidc.org/data/g02202 (external link) https://polarwatch.noaa.gov/erddap/rss/nsidcCDRiceSQsh1day.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=nsidcCDRiceSQsh1day&showErrors=false&email= NSIDC > National Snow and Ice Data Center, NOAA nsidcCDRiceSQsh1day
https://polarwatch.noaa.gov/erddap/griddap/nsidcCDRiceSQshmday https://polarwatch.noaa.gov/erddap/griddap/nsidcCDRiceSQshmday.graph https://polarwatch.noaa.gov/erddap/files/nsidcCDRiceSQshmday/ Z-DEPRECATED - Sea Ice Concentration, NOAA/NSIDC Climate Data Record V3, Antarctic, 25km, Science Quality, 1978-2019, Monthly Alert: There is a newer version of this dataset. Please use Version 4 of the NSIDC Sea Ice Concentration CDR with ERDDAP ID: nsidcG02202v4shmday. Link: https://polarwatch.noaa.gov/erddap/griddap/nsidcG02202v4shmday.graph. Version 3 Summary: This data set provides a passive microwave sea ice concentration climate data record (CDR) based on gridded brightness temperatures (TBs) from the Defense Meteorological Satellite Program (DMSP) series of passive microwave radiometers: the Special Sensor Microwave Imager (SSM/I) and the Special Sensor Microwave Imager/Sounder (SSMIS). 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 processed and combined at National Snow and Ice Data Center (NSIDC) using brightness temperature data from Remote Sensing Systems, Inc. (RSS).  This product is designed to provide a consistent time series of sea ice concentrations (the fraction, or percentage, of ocean area covered by sea ice) from 1987 to the present which spans the coverage of several passive microwave instruments. 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 input NASA Team and Bootstrap concentrations for reference and a merged NASA Team/Bootstrap version of the Goddard sea ice concentrations that spans 1978 to the present made available as a longer-term analog of the CDR concentrations. Variables containing standard deviation, quality flags, and projection information are also included. Data are available via FTP.\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][ygrid][xgrid]):\nseaice_conc_monthly_cdr (NOAA/NSIDC Climate Data Record of Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration, 1)\nstdev_of_seaice_conc_monthly_cdr (Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration Source Estimated Standard Deviation)\nmelt_onset_day_seaice_conc_monthly_cdr (Monthly Day of Snow Melt Onset Over Sea Ice, 1)\nqa_of_seaice_conc_monthly_cdr (Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration QC flags)\ngoddard_merged_seaice_conc_monthly (Goddard Edited Climate Data Record of Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration, Goddard Edited, 1)\ngoddard_nt_seaice_conc_monthly (Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration by NASA Team algorithm with Goddard QC, 1)\ngoddard_bt_seaice_conc_monthly (Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration by Bootstrap algorithm with Goddard QC, 1)\n https://polarwatch.noaa.gov/erddap/info/nsidcCDRiceSQshmday/index.htmlTable https://nsidc.org/data/g02202 (external link) https://polarwatch.noaa.gov/erddap/rss/nsidcCDRiceSQshmday.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=nsidcCDRiceSQshmday&showErrors=false&email= NSIDC > National Snow and Ice Data Center, NOAA nsidcCDRiceSQshmday
https://polarwatch.noaa.gov/erddap/griddap/nsidcCDRiceSQnh1day https://polarwatch.noaa.gov/erddap/griddap/nsidcCDRiceSQnh1day.graph https://polarwatch.noaa.gov/erddap/files/nsidcCDRiceSQnh1day/ Z-DEPRECATED - Sea Ice Concentration, NOAA/NSIDC Climate Data Record V3, Arctic, 25km, Science Quality, 1978-2019, Daily Alert: There is a newer version of this dataset. Please use Version 4 of the NSIDC Sea Ice Concentration CDR with ERDDAP ID: nsidcG02202v4nh1day. Link: https://polarwatch.noaa.gov/erddap/griddap/nsidcG02202v4nh1day.graph. Version 3 Summary: This data set NOAA/NSIDC Sea Ice Concentration CDR v3 (g02202) provides a passive microwave sea ice concentration climate data record (CDR) based on gridded brightness temperatures (TBs) from the Defense Meteorological Satellite Program (DMSP) series of passive microwave radiometers: the Special Sensor Microwave Imager (SSM/I) and the Special Sensor Microwave Imager/Sounder (SSMIS). 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 processed and combined at National Snow and Ice Data Center (NSIDC) using brightness temperature data from Remote Sensing Systems, Inc. (RSS).  This product is designed to provide a consistent time series of sea ice concentrations (the fraction, or percentage, of ocean area covered by sea ice) from 1987 to the present which spans the coverage of several passive microwave instruments. 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 input NASA Team and Bootstrap concentrations for reference and a merged NASA Team/Bootstrap version of the Goddard sea ice concentrations that spans 1978 to the present made available as a longer-term analog of the CDR concentrations. Variables containing standard deviation, quality flags, and projection information are also included. Data are available via FTP.\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][ygrid][xgrid]):\nseaice_conc_cdr (NOAA/NSIDC Climate Data Record of Passive Microwave Daily Northern Hemisphere Sea Ice Concentration, 1)\nstdev_of_seaice_conc_cdr (Passive Microwave Daily Northern Hemisphere Sea Ice Concentration Source Estimated Standard Deviation)\nmelt_onset_day_seaice_conc_cdr (Day of Snow Melt Onset Over Sea Ice, 1)\nqa_of_seaice_conc_cdr (Passive Microwave Daily Northern Hemisphere Sea Ice Concentration QC flags)\ngoddard_merged_seaice_conc (Goddard Edited Climate Data Record of Passive Microwave Daily Northern Hemisphere Sea Ice Concentration, Goddard Edited, 1)\ngoddard_nt_seaice_conc (Passive Microwave Daily Northern Hemisphere Sea Ice Concentration by NASA Team algorithm with Goddard QC, 1)\ngoddard_bt_seaice_conc (Passive Microwave Daily Northern Hemisphere Sea Ice Concentration by Bootstrap algorithm with Goddard QC, 1)\n https://polarwatch.noaa.gov/erddap/info/nsidcCDRiceSQnh1day/index.htmlTable https://nsidc.org/data/g02202 (external link) https://polarwatch.noaa.gov/erddap/rss/nsidcCDRiceSQnh1day.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=nsidcCDRiceSQnh1day&showErrors=false&email= NSIDC > National Snow and Ice Data Center, NOAA nsidcCDRiceSQnh1day
https://polarwatch.noaa.gov/erddap/griddap/nsidcCDRiceSQnhmday https://polarwatch.noaa.gov/erddap/griddap/nsidcCDRiceSQnhmday.graph https://polarwatch.noaa.gov/erddap/files/nsidcCDRiceSQnhmday/ Z-DEPRECATED - Sea Ice Concentration, NOAA/NSIDC Climate Data Record V3, Arctic, 25km, Science Quality, 1978-2019, Monthly Alert: There is a newer version of this dataset. Please use Version 4 of the NSIDC Sea Ice Concentration CDR with ERDDAP ID: nsidcG02202v4nhmday. Link: https://polarwatch.noaa.gov/erddap/griddap/nsidcG02202v4nhmday.graph. Version 3 Summary: 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. Variables containing standard deviation, quality flags, and projection information are also included.\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][ygrid][xgrid]):\nseaice_conc_monthly_cdr (NOAA/NSIDC Climate Data Record of Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration, 1)\nstdev_of_seaice_conc_monthly_cdr (Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration Source Estimated Standard Deviation)\nmelt_onset_day_seaice_conc_monthly_cdr (Monthly Day of Snow Melt Onset Over Sea Ice, 1)\nqa_of_seaice_conc_monthly_cdr (Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration QC flags)\ngoddard_merged_seaice_conc_monthly (Goddard Edited Climate Data Record of Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration, Goddard Edited, 1)\ngoddard_nt_seaice_conc_monthly (Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration by NASA Team algorithm with Goddard QC, 1)\ngoddard_bt_seaice_conc_monthly (Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration by Bootstrap algorithm with Goddard QC, 1)\n https://polarwatch.noaa.gov/erddap/info/nsidcCDRiceSQnhmday/index.htmlTable https://nsidc.org/data/g02202 (external link) https://polarwatch.noaa.gov/erddap/rss/nsidcCDRiceSQnhmday.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=nsidcCDRiceSQnhmday&showErrors=false&email= NSIDC > National Snow and Ice Data Center, NOAA nsidcCDRiceSQnhmday
https://polarwatch.noaa.gov/erddap/griddap/nsidcCDRiceNRTshmday https://polarwatch.noaa.gov/erddap/griddap/nsidcCDRiceNRTshmday.graph https://polarwatch.noaa.gov/erddap/files/nsidcCDRiceNRTshmday/ Z-DEPRECATED - Sea Ice Concentration, NOAA/NSIDC NRT Climate Data Record V1, Antarctic, 25km, Near Real-Time, 2016-Present, Monthly Alert: There is a newer version of this dataset. Please use Version 2 of the NSIDC NRT Sea Ice Concentration CDR with ERDDAP ID: nsidcG10016v2shmday. Link: https://polarwatch.noaa.gov/erddap/griddap/nsidcG10016v2shmday.graph. Version 1 Summary: 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. Variables containing standard deviation, quality flags, and projection information are also included.\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][ygrid][xgrid]):\nseaice_conc_monthly_cdr (NOAA/NSIDC Climate Data Record of Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration, 1)\nstdev_of_seaice_conc_monthly_cdr (Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration Source Estimated Standard Deviation)\nmelt_onset_day_seaice_conc_monthly_cdr (Monthly Day of Snow Melt Onset Over Sea Ice, 1)\nqa_of_seaice_conc_monthly_cdr (Passive Microwave Monthly Southern Hemisphere Sea Ice Concentration QC flags)\n https://polarwatch.noaa.gov/erddap/info/nsidcCDRiceNRTshmday/index.htmlTable https://nsidc.org/data/g10016 (external link) https://polarwatch.noaa.gov/erddap/rss/nsidcCDRiceNRTshmday.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=nsidcCDRiceNRTshmday&showErrors=false&email= NSIDC > National Snow and Ice Data Center, NOAA nsidcCDRiceNRTshmday
https://polarwatch.noaa.gov/erddap/griddap/nsidcCDRiceNRTnhmday https://polarwatch.noaa.gov/erddap/griddap/nsidcCDRiceNRTnhmday.graph https://polarwatch.noaa.gov/erddap/files/nsidcCDRiceNRTnhmday/ Z-DEPRECATED - Sea Ice Concentration, NOAA/NSIDC NRT Climate Data Record, Arctic, 25km, Near Real-Time, 2017-Present, Monthly Alert: There is a newer version of this dataset. Please use Version 2 of the NSIDC NRT Sea Ice Concentration CDR with ERDDAP ID: nsidcG10016v2nhmday. Link: https://polarwatch.noaa.gov/erddap/griddap/nsidcG10016v2nhmday.graph. Version 1 Summary: 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. Variables containing standard deviation, quality flags, and projection information are also included.\n\ncdm_data_type = Grid\nVARIABLES (all of which use the dimensions [time][ygrid][xgrid]):\nseaice_conc_monthly_cdr (NOAA/NSIDC Climate Data Record of Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration, 1)\nstdev_of_seaice_conc_monthly_cdr (Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration Source Estimated Standard Deviation)\nmelt_onset_day_seaice_conc_monthly_cdr (Monthly Day of Snow Melt Onset Over Sea Ice, 1)\nqa_of_seaice_conc_monthly_cdr (Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration QC flags)\n https://polarwatch.noaa.gov/erddap/info/nsidcCDRiceNRTnhmday/index.htmlTable https://nsidc.org/data/g10016 (external link) https://polarwatch.noaa.gov/erddap/rss/nsidcCDRiceNRTnhmday.rss https://polarwatch.noaa.gov/erddap/subscriptions/add.html?datasetID=nsidcCDRiceNRTnhmday&showErrors=false&email= NSIDC > National Snow and Ice Data Center, NOAA nsidcCDRiceNRTnhmday

 
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