gov.noaa.ncdc:C01705 eng; USA utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact 2024-12-31 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) EPSG Geodetic Parameter Dataset Registry 2008-11-12 publication International Association of Oil and Gas Producers (OGP) Geomatics Committee http://www.epsg-registry.org/ Data Search Application EPSG Geodetic Parameter Dataset Registry Application Interface to the EPSG Geodetic Parameter Dataset Registry search custodian International Association of Oil and Gas Producers (OGP) Geomatics Committee http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::3411 Download Coordinate Reference System data in GML Coordinate Reference System data in GML download custodian urn:ogc:def:crs:EPSG::3411 EPSG Geodetic Parameter Dataset Registry 2008-11-12 publication International Association of Oil and Gas Producers (OGP) Geomatics Committee http://www.epsg-registry.org/ Data Search Application EPSG Geodetic Parameter Dataset Registry Application Interface to the EPSG Geodetic Parameter Dataset Registry search custodian International Association of Oil and Gas Producers (OGP) Geomatics Committee http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::3412 Download Coordinate Reference System data in GML Coordinate Reference System data in GML download custodian urn:ogc:def:crs:EPSG::3412 NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration, Version 5 Sea Ice Concentration CDR 2024-11-01 publication Version 5 doi:10.7265/rjzb-pf78 NCEI DSI 3628_05 gov.noaa.ncdc:C01705 Meier, Walt National Snow and Ice Data Center author Fetterer, Florence National Snow and Ice Data Center author Fetterer, Florence National Snow and Ice Data Center principalInvestigator Windnagel, Ann K. National Snow and Ice Data Center author Windnagel, Ann K. National Snow and Ice Data Center collaborator Steward, James Scott National Snow and Ice Data Center author Steward, James Scott National Snow and Ice Data Center collaborator Stafford, Trey National Snow and Ice Data Center author Stafford, Trey National Snow and Ice Data Center collaborator NOAA National Centers for Environmental Information publisher imageDigital This data set provides a Climate Data Record (CDR) of sea ice concentration from passive microwave data at a 25 km resolution beginning in late October 1978. It is generated using daily gridded brightness temperatures from the GCOM-W Advanced Microwave Scanning Radiometer - 2 (AMSR2), the Aqua AMSR-E sensor, the Defense Meteorological Satellite Program (DMSP) series of Special Sensor Microwave Imager/Sounder (SSMIS) and Special Sensor Microwave Imager (SSM/I) passive microwave radiometers onboard F-17, F-13, F-11, and F-8, and the Nimbus Scanning Multichannel Microwave Radiometer (SMMR). The sea ice concentrations are an estimate of the fraction of ocean area covered by sea ice for both the north and south Polar Regions. The data are provided at daily and monthly resolutions from late October 1978 through most recent processing in NetCDF-4 CF 1.10 format. The data cover the Arctic and Antarctic regions. The related Near-real-time (NRT) NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration is not included in this data submission to NCEI. The daily NRT product is considered to be preliminary data and hosted at NSIDC. The quarterly data submissions to NCEI consist of Final data only. This dataset provides a high quality Climate Data Record (CDR) of Sea Ice Concentration from passive microwave sensors. The Sea Ice Concentration CDR provides a consistent, daily and monthly, time series of sea ice concentrations for both the north and south Polar Regions on a 25 km x 25 km grid. These data comprise an estimate of the fraction of ocean area covered by sea ice that is produced by combining concentration estimates created using two algorithms developed at the NASA Goddard Space Flight Center (GSFC): Nasa Team and Bootstrap. This blend of algorithms produces the best possible passive microwave estimate of sea ice concentration by leveraging the strengths of each algorithm. onGoing NOAA National Centers for Environmental Information Customer Engagement Branch 1-828-271-4800 1-828-271-4876 151 Patton Avenue Veach-Baley Federal Building, Room 468 Asheville NC 28801-5001 USA ncei.orders@noaa.gov https://www.ncei.noaa.gov HTTPS Web Browser NOAA National Centers for Environmental Information (NCEI) NCEI home page with information, data access and contact information. information 8:00 - 6:00 Eastern pointOfContact quarterly https://www.ncei.noaa.gov/pub/data/metadata/images/C01705.png NOAA/NSIDC Sea Ice Concentration, Version 5 CDR PNG Earth Science > Climate Indicators > Cryospheric Indicators > Sea Ice Concentration Earth Science > Oceans > Sea Ice > Sea Ice Concentration theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Oceanic - Surface - Sea Ice theme Global Climate Observing System (GCOS) Essential Climate Variables (ECVs) 2017 publication Release 2017 World Meteorological Organization, United Nations https://public.wmo.int/en/programmes/global-climate-observing-system/essential-climate-variables HTTP Information GCOS Essential Climate Variables Overview of the GCOS Essential Climate Variables. information custodian Ocean > Arctic Ocean Geographic Region > Polar place Global Change Master Directory (GCMD) Location Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher NOAA Climate Data Record (CDR) Program project Global Change Master Directory (GCMD) Project Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher SMMR > Scanning Multichannel Microwave Radiometer SSM/I > Special Sensor Microwave/Imager SSMIS > Special Sensor Microwave Imager/Sounder AMSR-E > Advanced Microwave Scanning Radiometer-EOS AMSR2 > Advanced Microwave Scanning Radiometer 2 instrument Global Change Master Directory (GCMD) Instrument Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher NIMBUS > Nimbus-7 DMSP 5D-2/F8 > Defense Meteorological Satellite Program-F8 DMSP 5D-2/F11 > Defense Meteorological Satellite Program-F11 DMSP 5D-2/F13 > Defense Meteorological Satellite Program-F13 DMSP 5D-3/F17 > Defense Meteorological Satellite Program-F17 AQUA > Earth Observing System, AQUA GCOM-W1 > Global Change Observation Mission 1st-Water platform Global Change Master Directory (GCMD) Platform Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher 10 km - < 50 km or approximately .09 degree - < .5 degree dataResolution Global Change Master Directory (GCMD) Horizontal Data Resolution Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Daily - < Weekly Weekly - < Monthly dataResolution Global Change Master Directory (GCMD) Temporal Data Resolution Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher National Centers for Environmental Information National Oceanic and Atmospheric Administration at the National Snow and Ice Data Center dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Atmospheric water vapor is a weather effect that can modulate the passive microwave signature of the surface, particularly at the 19 GHz frequency, causing ice concentration to be overestimated. During melt conditions, the algorithm tends to underestimate concentration. Over open water, ocean waves and/or atmospheric emission (especially by liquid water clouds) can increase the surface emission signal and result in false ice retrieval. Errors can come from problems with the sensor, from weather effects, and from inadequacies in the algorithm. For example, a satellite's orbit may drift over time, which may degrade an instrument's data quality. otherRestrictions Cite as: Meier, W. N., Fetterer, F., Windnagel, A. K., Stewart, J. S., and Stafford, T. 2023. NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration, Version 5. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.7265/rjzb-pf78. otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration, Version 5 Version 5 National Snow and Ice Data Center author https://doi.org/10.7265/rjzb-pf78 HTTPS Web Browser NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration, Version 5 information crossReference grid 12500 eng; USA oceans 1. CDR V5 processing will take place on an Ubuntu 22.04 virtual machine on NSIDC's internal computing infrastructure. 2. The CDR V5 virtual machine is provisioned with the software and data dependencies required for running the CDR software (e.g., Python 3.10, NFS mounts to our input data) 3. Software requirements and runtime instructions are documented in the seaice_ecdr repository: https://github.com/nsidc/seaice_ecdr/ 4. Intermediate and final data files are NetCDF 1 -180 180 -89.84 -31.1 1 -180 180 30.1 90.00 ground condition 1978-10-25 1 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. netCDF-4 https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.ncdc.noaa:C01705/html HTTPS Landing Page NCEI Dataset Landing Page Landing page for the dataset. information https://doi.org/10.7265/rjzb-pf78 HTTPS Download NSIDC Data Set Landing Page Dataset landing page with general information and data access links. download dataset This dataset was produced by the National Snow and Ice Data Center and is archived by the NOAA National Centers for Environmental Information (NCEI). See the CDR Algorithm Description and the CDR Data Flow Diagram for a description of the processing steps. National Snow and Ice Data Center processor CDR Version 5 CDR Source Code NOAA National Centers for Environmental Information publisher https://www.ncei.noaa.gov/pub/data/sds/cdr/CDRs/Sea_Ice_Concentration/SourceCode_01B-11.tar.gz HTTPS Web Browser CDR Source Code This source code is for reference only. The source code is provided to maintain transparency of the algorithm and processes used in creating the Climate Data Record (CDR). The source code is not intended to be portable to any computer system(s) beyond that of the original CDR producer's environment. download CDR Data Flow Diagram NOAA National Centers for Environmental Information publisher https://www.ncei.noaa.gov/pub/data/sds/cdr/CDRs/Sea_Ice_Concentration/DataFlowDiagram_01B-11.pdf HTTPS Web Browser CDR Data Flow Diagram Data processing flowchart for the CDR. information CDR Algorithm Description NOAA National Centers for Environmental Information publisher https://www.ncei.noaa.gov/pub/data/sds/cdr/CDRs/Sea_Ice_Concentration/AlgorithmDescription_01B-11.pdf HTTPS Web Browser CDR Algorithm Description Algorithm Theoretical Basis Document for the CDR. information See CDR Algorithm Citation DMSP SSM/I-SSMIS Daily Polar Gridded Brightness Temperatures, Version 6 DMSP SSM/I-SSMIS Daily Polar Gridded Brightness Temperatures, Version 6 6 nsidc-0001 https://nsidc.org/data/nsidc-0001/versions/6 HTTPS Web Browser DMSP SSM/I-SSMIS Daily Polar Gridded Brightness Temperatures, Version 6 information 1987-07-09 2011-10-03 Nimbus-7 SMMR Polar Gridded Radiances and Sea Ice Concentrations, Version 1 Nimbus-7 SMMR Polar Gridded Radiances and Sea Ice Concentrations, Version 1 1 nsidc-0007 https://nsidc.org/data/nsidc-0007/versions/1 HTTPS Web Browser Nimbus-7 SMMR Polar Gridded Radiances and Sea Ice Concentrations, Version 1 information 1978-10-25 1987-07-08 repository NOAA National Centers for Environmental Information NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015. 2015-04-22T00:00:00 asNeeded Bulk metadata change applied on 2024-12-31. See version control repository history for metadata change details.