NOAA Climate Data Record (CDR) of AVHRR Polar Pathfinder Extended (APP-X) Cryosphere, Version 2
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. The latest update to version 2 includes folding in the APP FCDR updates (updated calibration coefficients for AVHRR GAC visible channels) along with improved algorithms for the land mask, cloud mask, and ice thickness.
Complete Metadata
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|---|---|
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|
| describedByType | application/octet-steam |
| description | 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. The latest update to version 2 includes folding in the APP FCDR updates (updated calibration coefficients for AVHRR GAC visible channels) along with improved algorithms for the land mask, cloud mask, and ice thickness. |
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|
| identifier | gov.noaa.ncdc:C01580 |
| issued | 2019-01-01T00:00:00.000+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 | 2019-01-01T00:00:00.000+00:00 |
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{
"name": "DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce",
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|
| references |
[
"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/10.25921/X2X1-JR34"
]
|
| rights | otherRestrictions |
| spatial | 180.0,-90.0,-180.0,90.0 |
| temporal | 1982-01-01T00:00:00+00:00/1982-01-01T00:00:00+00:00 |
| title | NOAA Climate Data Record (CDR) of AVHRR Polar Pathfinder Extended (APP-X) Cryosphere, Version 2 |
