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NOAA Climate Data Record (CDR) of AVHRR Daily and Monthly Aerosol Optical Thickness (AOT) over Global Oceans, Version 3.0 (Version Superseded)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: April 12, 2026 at 09:19 PM | Dataset Last Updated: December 01, 2016 at 12:00 AM
*Note: This dataset version has been superseded by a newer version.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

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  • NCEI Dataset Landing Page

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  • Contact NCEI

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  • NCEI Dataset Landing Page for the Current Version

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  • DSMR Publication at the NOAA Institutional Repository

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  • Climatology Analysis of Aerosol Effect on Marine Water Cloud from Long-Term Satellite Climate Data Records

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  • 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

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  • Global Change Master Directory (GCMD) Keywords

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  • GCOS Essential Climate Variables

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  • NOAA National Centers for Environmental Information (NCEI)

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Earth Science > Atmosphere > Aerosols Atmospheric - Composition - Aerosol Properties NOAA Climate Data Record (CDR) Program NOAA OneStop Project Satellite Vertical Location > Troposphere Geographic Region > Global AVHRR > Advanced Very High Resolution Radiometer

Complete Metadata
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description *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
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identifier https://data.noaa.gov/waf/NOAA/NESDIS/ncei/aim/iso/xml/C00977.xml
issued 2016-12-01T00:00:00.000+00:00
keyword 
[
  "Earth Science > Atmosphere > Aerosols",
  "Atmospheric - Composition - Aerosol Properties",
  "NOAA Climate Data Record (CDR) Program",
  "NOAA OneStop Project",
  "Satellite",
  "Vertical Location > Troposphere",
  "Geographic Region > Global",
  "AVHRR > Advanced Very High Resolution Radiometer",
  "AVHRR-2 > Advanced Very High Resolution Radiometer-2",
  "AVHRR-3 > Advanced Very High Resolution Radiometer-3",
  "POES: NOAA Polar Orbiting Environmental Satellites",
  "10 km - < 50 km or approximately .09 degree - < .5 degree",
  "> 1 km",
  "Hourly - < Daily",
  "10 km - < 50 km or approximately .09 degree - < .5 degree",
  "> 1 km",
  "Hourly - < Daily",
  "10 km - < 50 km or approximately .09 degree - < .5 degree",
  "> 1 km",
  "Hourly - < Daily",
  "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"
]
language 
[]
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2016-12-01T00:00:00.000+00:00
publisher 
{
  "name": "NOAA National Centers for Environmental Information",
  "@type": "org:Organization"
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references 
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  "https://doi.org/10.25921/w3zj-4y48",
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  "https://doi.org/10.3390/rs8040300",
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]
rights otherRestrictions
spatial 180.0,-90.0,-180.0,90.0
temporal 1981-01-01T00:00:00+00:00/2016-09-30T00:00:00+00:00
title NOAA Climate Data Record (CDR) of AVHRR Daily and Monthly Aerosol Optical Thickness (AOT) over Global Oceans, Version 3.0 (Version Superseded)

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