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NOAA Climate Data Record (CDR) of AVHRR Polar Pathfinder Extended (APP-X) Cryosphere, Version 1 (Version Superseded)

Published by DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: April 12, 2026 at 09:18 PM | Dataset Last Updated: February 05, 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*Note: This dataset version has been superseded by a newer version.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.* NOAA Climate Data Record (CDR) of the extended AVHRR Polar Pathfinder (APP-x) cryosphere contains 19 geophysical variables over the Arctic and Antarctic for the period 1982 - present. All of them have undergone various degrees of validation, though not all are considered CDR quality. The variables are (those considered by the developers to be CDR-quality are identified with an asterisk): Surface temperature, all-sky, snow, ice, and land* Surface albedo, all-sky* Sea ice thickness* Surface type Cloud mask* Cloud particle thermodynamic phase Cloud optical depth Cloud particle effective radius Cloud temperature Cloud pressure Cloud type Downwelling shortwave radiation at the surface* Downwelling longwave radiation at the surface* Upwelling shortwave radiation at the surface* Upwelling longwave radiation at the surface* Upwelling shortwave radiation at the TOA* Upwelling longwave radiation at the TOA* Shortwave cloud radiative forcing at the surface Longwave cloud radiative forcing at the surface APP-x data products are mapped to a 25 km EASE grid at two local solar times: 04:00 and 14:00 for the Arctic, and 02:00 and 14:00 for the Antarctica. Using local solar time rather than standard UTC times provides better information on diurnal differences at all locations.

Resources

13 resources available

  • 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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    Visit Page

  • DSMR Publication at the NOAA Institutional Repository

    TEXT/HTML
    Visit Page
  • VALUE

    Journal of Climate Article

    PLACEHOLDER/VALUE
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  • Remote Sensing of Environment Article

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  • Journal of Geophysical Research Article

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  • VALUE

    Journal of Applied Meteorology and Climatology Article

    PLACEHOLDER/VALUE
    Download

  • Journal of Geophysical Research Article

    TEXT/HTML
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  • NCEI landing page for the APP CDR

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  • Global Change Master Directory (GCMD) Keywords

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  • GCOS Essential Climate Variables

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  • CDR Program Contacts

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Earth Science > Cryosphere Oceanic - Surface - Sea Ice Atmospheric - Upper-air - Cloud Properties Terrestrial - Albedo Atmospheric - Surface - Surface Radiation Budget (including Solar Irradiance) Atmospheric - Surface - Air Temperature Oceanic - Surface - Sea-surface Temperature Geographic Region > Arctic

Complete Metadata
@type dcat:Dataset
accessLevel non-public
contactPoint 
                                            {
  "fn": "DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce",
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}
describedByType application/octet-steam
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.* NOAA Climate Data Record (CDR) of the extended AVHRR Polar Pathfinder (APP-x) cryosphere contains 19 geophysical variables over the Arctic and Antarctic for the period 1982 - present. All of them have undergone various degrees of validation, though not all are considered CDR quality. The variables are (those considered by the developers to be CDR-quality are identified with an asterisk): Surface temperature, all-sky, snow, ice, and land* Surface albedo, all-sky* Sea ice thickness* Surface type Cloud mask* Cloud particle thermodynamic phase Cloud optical depth Cloud particle effective radius Cloud temperature Cloud pressure Cloud type Downwelling shortwave radiation at the surface* Downwelling longwave radiation at the surface* Upwelling shortwave radiation at the surface* Upwelling longwave radiation at the surface* Upwelling shortwave radiation at the TOA* Upwelling longwave radiation at the TOA* Shortwave cloud radiative forcing at the surface Longwave cloud radiative forcing at the surface APP-x data products are mapped to a 25 km EASE grid at two local solar times: 04:00 and 14:00 for the Arctic, and 02:00 and 14:00 for the Antarctica. Using local solar time rather than standard UTC times provides better information on diurnal differences at all locations.
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identifier https://data.noaa.gov/waf/NOAA/NESDIS/ncei/aim/iso/xml/C00941.xml
issued 2016-02-05T00:00:00.000+00:00
keyword 
                                            [
  "Earth Science > Cryosphere",
  "Oceanic - Surface - Sea Ice",
  "Atmospheric - Upper-air - Cloud Properties",
  "Terrestrial - Albedo",
  "Atmospheric - Surface - Surface Radiation Budget (including Solar Irradiance)",
  "Atmospheric - Surface - Air Temperature",
  "Oceanic - Surface - Sea-surface Temperature",
  "Geographic Region > Arctic",
  "Continent > Antarctica",
  "Vertical Location > Land Surface",
  "Vertical Location > Sea Surface",
  "NOAA Climate Data Record (CDR) Program",
  "NOAA OneStop Project",
  "AVHRR > Advanced Very High Resolution Radiometer",
  "NOAA POES > NOAA Polar Orbiting Environmental Satellites",
  "10 km - < 50 km or approximately .09 degree - < .5 degree",
  "Satellite",
  "DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce",
  "DOC/NOAA/NESDIS/STAR > Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce"
]
language 
                                            []
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2016-02-05T00:00:00.000+00:00
publisher 
                                            {
  "name": "DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce",
  "@type": "org:Organization"
}
references 
                                            [
  "https://doi.org/10.25921/AE96-0E57",
  "https://doi.org/10.25923/9gkj-0x21",
  "https://doi.org/10.1175/JCLI3438.1",
  "https://doi.org/10.1016/S0034-4257(97)89497-7",
  "https://doi.org/10.1029/JD094iD15p18521",
  "https://doi.org/10.1175/1520-0450-39.10.1797",
  "https://doi.org/10.1029/2009JC005857",
  "https://doi.org/10.7289/V5BC3WHM"
]
rights otherRestrictions
spatial 180.0,-90.0,-180.0,90.0
temporal 1982-01-01T00:00:00+00:00/2019-01-01T00:00:00+00:00
title NOAA Climate Data Record (CDR) of AVHRR Polar Pathfinder Extended (APP-X) Cryosphere, Version 1 (Version Superseded)

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