---
access_dt: ~
aliases:
  - context: identifier
    lexicon: datagov
    term: 0ac6f1b8-0261-4d0c-bf2c-563a3eddb33d
    url: ~
  - context: dataset
    lexicon: datagov
    term: noaa-climate-data-record-cdr-of-avhrr-daily-and-monthly-aerosol-optical-thickness-over-global-o
    url: ~
attributes: ~
cite_metadata: ~
cited_by: []
contributors:
  - display_name: 'Data Archive : National Oceanic and Atmospheric Administration National Centers for Environmental Information '
    href: http://52.38.26.42:8080/contributor/22967.yaml
    id: 22967
    organization:
      country_code: US
      display_name: National Oceanic and Atmospheric Administration National Centers for Environmental Information
      identifier: national-oceanic-atmospheric-administration-national-centers-environmental-information
      name: National Oceanic and Atmospheric Administration National Centers for Environmental Information
      organization_type_identifier: federal
      type: organization
      url: https://www.ncei.noaa.gov/
    organization_uri: /organization/national-oceanic-atmospheric-administration-national-centers-environmental-information
    person: {}
    person_id: ~
    person_uri: ~
    role_type_identifier: data_archive
    uri: /contributor/22967
data_qualifier: ~
description: 'This NOAA Climate Data Record (CDR) of Aerosol Optical Thickness (AOT) is derived from data taken over global oceans from the PATMOS-x AVHRR level-2b channel 1 (0.63 micron) orbital clear-sky radiance. The retrieval is performed for selected spatial (8-km) and temporal (1 time per day) resolution in cloud free condition during daytime over global oceans. The AVHRR AOT CDR version 2 extends from 1981 to 2009 and includes both daily and monthly data in an equal angle grid (0.1x0.1 degree). Version 2 has improved cloud screening and data processing from version 1. 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 non-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).'
description_attribution: ~
display_name: 'NOAA Climate Data Record (CDR) of AVHRR Daily and Monthly Aerosol Optical Thickness over Global Oceans, Version 2.0'
doi: ~
end_time: ~
files: []
href: http://52.38.26.42:8080/dataset/noaa-ncdc-c00858.yaml
identifier: noaa-ncdc-c00858
instrument_measurements: []
lat_max: 90.0
lat_min: -90.0
lon_max: 180.0
lon_min: -180.0
name: 'NOAA Climate Data Record (CDR) of AVHRR Daily and Monthly Aerosol Optical Thickness over Global Oceans, Version 2.0'
native_id: ~
parents: []
processing_level: ~
publication_year: ~
references: []
release_dt: ~
scale: ~
scope: ~
spatial_extent: ~
spatial_ref_sys: ~
spatial_res: ~
start_time: ~
temporal_extent: ~
temporal_resolution: ~
type: dataset
uri: /dataset/noaa-ncdc-c00858
url: http://dx.doi.org/10.7289/V5SB43PD
variables: ~
version: ~
vertical_extent: ~