gov.noaa.ncdc:C00977 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 2023-09-13 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA Climate Data Record (CDR) of AVHRR Daily and Monthly Aerosol Optical Thickness (AOT) over Global Oceans, Version 3.0 (Version Superseded) AVHRR Aerosol Optical Thickness 2016-12-01 publication Version 3.0 doi:10.7289/V5BZ642P NCEI DSI 3627_03 gov.noaa.ncdc:C00977 NOAA National Centers for Environmental Information publisher Zhao, Xuepeng DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Meteorologist +1 828-271-4412 Xuepeng.Zhao@noaa.gov principalInvestigator Zhao, Xuepeng DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Meteorologist +1 828-271-4412 Xuepeng.Zhao@noaa.gov author DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce NOAA CDR Program collaborator DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce NOAA CDR Program author imageDigital *Note: This dataset version has been superseded by a newer version. It is highly recommended that users access the current version. Users should only use this version for special cases, such as reproducing studies that used this version.* The product is the aerosol optical thickness (AOT) at 0.63 micron, which is retrieved from NOAA PATMOS-x level-2B orbital radinace and cloud CDR products. The retrieval is performed for selected spatial (0.1 by 0.1 degree) and temporal (1 time per day per satellite) resolution in cloud free condition during daytime. The final product is daily averaged from all satellite retrivals and in a 0.1 by 0.1 degree equal angle grid (total 1800x3600 grids over the globe). Due to the relatively large uncertainties associated with surface reflectance over water glint area and land surface as well as limited AVHRR retrieval channels, the current algorithm only performs retrieval over none-glint water surface (specifically at the anti-solar side of the orbit and viewing angle is larger than 40 degree away from the specular ray). The final CDR AOT products include daily and monthly products This dataset can be utilized in air quality monitoring as well as climate and environmental change studies. completed superseded historicalArchive 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 DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce NOAA Climate Data Record Program Office +1 828-271-4800 +1 828-271-4876 Federal Building, Room 468 151 Patton Avenue Asheville NC 28801-5001 USA avhrr_aot_contacts@noaa.gov 8:00 - 6:00 Eastern pointOfContact notPlanned https://www.ncei.noaa.gov/pub/data/metadata/images/C00977_AOT.jpg AOT Trends JPEG Earth Science > Atmosphere > Aerosols 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 Atmospheric - Composition - Aerosol Properties 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 NOAA Climate Data Record (CDR) Program NOAA OneStop Project 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 Satellite product Vertical Location > Troposphere stratum 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 Geographic Region > Global 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 AVHRR > Advanced Very High Resolution Radiometer AVHRR-2 > Advanced Very High Resolution Radiometer-2 AVHRR-3 > Advanced Very High Resolution Radiometer-3 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 POES: NOAA Polar Orbiting Environmental Satellites 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 > 1 km dataResolution Global Change Master Directory (GCMD) Vertical 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 Hourly - < Daily 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 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 > 1 km dataResolution Global Change Master Directory (GCMD) Vertical 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 Hourly - < Daily 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 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 > 1 km dataResolution Global Change Master Directory (GCMD) Vertical 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 Hourly - < Daily 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 DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce 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 *Note: This dataset version has been superseded by a newer version. It is highly recommended that users access the current version. Users should only use this version for special cases, such as reproducing studies that used this version.* See the Algorithm Theoretical Basis Document for a description of the use limitations for this dataset. Products apply to over-ocean only. The values at polar latitudes (outside 60 degree north or south) are degraded due to surface contamination from ice and degraded cloud screening at polar latitudes. The quality of the output CDR data is dependent on the quality of the input data. As such, the near real-time data is labeled as an Interim operational CDR (ICDR) or preliminary CDR instead of a final CDR, indicating that it has not yet been fully vetted for climate applications. The near real-time ICDR/preliminary data will transition to final CDR status after the data have undergone further analysis and processing. The expected time lag of the final CDR transition is approximately one year. The state of a data file is indicated within each file name. otherRestrictions Cite as: Zhao, Xuepeng; and NOAA CDR Program (2017): NOAA Climate Data Record (CDR) of AVHRR Daily and Monthly Aerosol Optical Thickness (AOT) over Global Oceans, Version 3.0. [indicate subset used]. NOAA National Centers for Environmental Information. doi:10.7289/V5BZ642P [date accessed]. *This dataset version has been superseded by a newer version. Users should only use this version for special cases, such as reproducing previous studies that used this version. Refer to the metadata for more information.* otherRestrictions See the Use Agreement for this CDR available on the CDR page. 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. NCEI Dataset Landing Page for the Current Version https://doi.org/10.25921/w3zj-4y48 Landing Page NCEI Dataset Landing Page for the Current Version Landing page for the Current Version. information crossReference collection Data Stewardship Maturity Report for NOAA Climate Data Record (CDR) of AVHRR Daily and Monthly Aerosol Optical Thickness over Global Oceans, Version 3.0 2022 publication NOAA Institutional Repository publisher https://doi.org/10.25923/6qz4-q284 HTTPS Web Browser DSMR Publication at the NOAA Institutional Repository Report documenting the Scientific Data Stewardship Maturity for this dataset. information crossReference sciencePaper Climatology Analysis of Aerosol Effect on Marine Water Cloud from Long-Term Satellite Climate Data Records 2016-04-02 publication 8 doi:10.3390/rs8040300 DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce principalInvestigator https://doi.org/10.3390/rs8040300 HTTPS Web Browser Climatology Analysis of Aerosol Effect on Marine Water Cloud from Long-Term Satellite Climate Data Records Open Access Science Journal information source sciencePaper A global survey of the effect of cloud contamination on the aerosol optical thickness and its long-term trend derived from operational AVHRR satellite observations 2013-04-03 publication DOI: 10.1002/jgrd.50278 Journal of Geophysical Research - Atmospheres https://doi.org/10.1002/jgrd.50278 HTTPS Web Browser A global survey of the effect of cloud contamination on the aerosol optical thickness and its long-term trend derived from operational AVHRR satellite observations Zhao, T. X.-P., P. K. Chan, and A. K. Heidinger (2013), A global survey of the effect of cloud contamination on the aerosol optical thickness and its long-term trend derived from operational AVHRR satellite observations, J. Geophys. Res. Atmos., 118, 2849-2857, doi:10.1002/jgrd.50278. information source sciencePaper grid 10000 eng; USA climatologyMeteorologyAtmosphere 1 -180.0 180.0 -90.0 90.0 ground condition 1981-01-01 2016-09-30 1 AOT_AVHRR_v03r00[-preliminary]_daily-avg_[YYYYMMDD]_c[YYYYMMDD].nc physicalMeasurement time int time (time) latitude float (latitude) longitude float (longitude) aot1 float NOAA Climate Data Record (CDR) of daily aerosol optical thickness over global oceans derived from PATMOS-x AVHRR channel 1 (0.63 micron) level2b orbital clear-sky radiance (atmosphere_optical_thickness_due_to_ambient_aerosol) lat_bounds float lon_bounds float time_bounds int AOT_AVHRR_v03r00[-preliminary]_monthly-avg_[YYYYMM]_c[YYYYMMDD].nc physicalMeasurement time int time (time) latitude float (latitude) longitude float (longitude) aot1 float NOAA Climate Data Record (CDR) of monthly aerosol optical thickness over global oceans derived from PATMOS-x AVHRR channel 1 (0.63 micron) level2b orbital clear-sky radiance (atmosphere_optical_thickness_due_to_aerosol) lat_bounds float lon_bounds float time_bounds int 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 The NetCDF data files comply with the Climate and Forecast (CF) Metadata Conventions and the NetCDF Attribute Convention for Dataset Discovery (ACDD). netCDF 4 The NetCDF data files comply with the Climate and Forecast (CF) Metadata Conventions and the NetCDF Attribute Convention for Dataset Discovery (ACDD). https://doi.org/10.7289/V5BZ642P HTTPS Landing Page NCEI Dataset Landing Page Landing page for the dataset. information https://www.ncei.noaa.gov/contact HTTPS Web Browser Contact NCEI Contact NCEI for more information and to request access to the archived data. Requests are subject to NCEI order fulfillment constraints. offline dataset The data were produced by and are archived at the NOAA National Centers for Environmental Information (NCEI). For a description of the processing steps, see the Algorithm Theoretical Basis Document and Data Flow Diagram for this dataset. DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce processor AVHRR Aerosol Optical Thickness (AOT) Source Code Package DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce distributor https://www.ncei.noaa.gov/pub/data/sds/cdr/CDRs/Aerosol_Optical_Thickness/ 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. information Flow Chart of Version 2 AVHRR Aerosol Optical Thickness Retrieval 2013-07-12 publication Rev 2 CDRP-DIA-0274 DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce publisher https://www.ncei.noaa.gov/pub/data/sds/cdr/CDRs/Aerosol_Optical_Thickness/DataFlowDiagram.pdf HTTPS Web Browser CDR Data Flow Diagram Flowcharts for the CDR product. information Climate Algorithm Theoretical Basis Document for AVHRR Aerosol Optical Thickness (AOT) 2016-09-06 publication Revision 3 CDRP-ATBD-0096 DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce NOAA Climate Data Record Program Office +1 (828) 271-4800 +1 (828) 271-4328 151 Patton Avenue Veach-Baley Federal Building, Room 447 Asheville NC 28801-5001 USA cdr_program.ncdc@noaa.gov 8:00 - 6:00 Eastern publisher https://www.ncei.noaa.gov/pub/data/sds/cdr/CDRs/Aerosol_Optical_Thickness/AlgorithmDescription_01B-04.pdf HTTPS Web Browser Climate Algorithm Theoretical Basis Document ATBD for the CDR product. download See Algorithm Citation Data were derived using PATMOS-X v5.3 data NOAA Climate Data Record (CDR) of Reflectance and Brightness Temperatures from AVHRR Pathfinder Atmospheres - Extended (PATMOS-x), Version 5.3 2014-07-13 publication v5.3 DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce distributor https://doi.org/10.7289/V56W982J HTTPS Web Browser NCEI Landing Page for AVHRR Reflectance - PATMOS-x Source dataset landing page. information 1 -180.0 180.0 -90.0 90.0 1981-01-01 2016-09-30 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 series Data Stewardship Data Stewardship Maturity Assessment MM-Stew The Data Stewardship Maturity Matrix (DSMM) is a unified framework that defines criteria for each of nine components based on measurable practices, which can be used to apply a progressive, 6-level rating to an individual dataset, representing stewardship maturity stages rated as Not Assessed or Not Available (Level 0), adHoc (Level 1), minimum (Level 2), intermediate (Level 3), advanced (Level 4), and optimal (Level 5). Data Stewardship Maturity Assessment was evaluated by the metadata content editor for the NOAA OneStop project using the Scientific Data Stewardship Maturity Assessment Model Template v4.0. The Scientific Data Stewardship Maturity Assessment Model Template 2015-06-23 publication NCDC-CICS-SMM_0001_Rev.1 v4.0 06/23/2015 doi:10.10.6084/m9.figshare.1211954 Peng, Ge CICS-NC/NCEI author https://doi.org/10.6084/m9.figshare.1211954 HTTPS Web Browser The Scientific Data Stewardship Maturity Assessment Model Template Landing page for quality evaluation procedure. information documentDigital 2017-04-18T00:00:00 advanced minimal advanced advanced intermediate minimal intermediate intermediate intermediate NOAA Climate Data Record (CDR) of AVHRR Daily and Monthly Aerosol Optical Thickness over Global Oceans, Version 3.0 2017-04-18 publication v01r00 DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce publisher Data Stewardship Maturity Assessment was evaluated by the metadata content editor for the NOAA OneStop project using the Scientific Data Stewardship Maturity Assessment Model Template v4.0. asNeeded Bulk metadata change applied on 2023-06-23. See version control repository history for metadata change details.