NOAA Climate Data Record (CDR) of Visible and Near Infrared Reflectance from AVHRR, Version 1.0
The AVHRR visible gains and offsets convert GAC pixel level counts to radiances and are provided for each visible band encompassing TIROS-N, NOAA-6 through NOAA-19 and Metop-A and B satellites. The resulting radiances are referenced to the Aqua-MODIS band 1 and 2 absolute calibration. Instructions are also given to convert AVHRR-3 (NOAA-15 to Metop-B) GAC high and low gain counts to the proper radiance. The gains vary temporally and are given as a function of day since launch, where the launch date is provided. The satellite and band specific solar constants are also provided to convert radiances into reflectances based on the solar incoming irradiance used by the MODIS Science Team. The resulting radiance uncertainty is given in %. The calibration coefficients are only valid for the start and end dates listed for each satellite. Three data variables are derived from 4 km AVHRR Global Area Coverage data: Calibrated 0.63 micron channel reflectance (unitless), Calibrated 0.86 micron reflectance (unitless), Calibrated 1.61 micron reflectance (unitless)
Complete Metadata
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|---|---|
| accessLevel | non-public |
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|
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| description | The AVHRR visible gains and offsets convert GAC pixel level counts to radiances and are provided for each visible band encompassing TIROS-N, NOAA-6 through NOAA-19 and Metop-A and B satellites. The resulting radiances are referenced to the Aqua-MODIS band 1 and 2 absolute calibration. Instructions are also given to convert AVHRR-3 (NOAA-15 to Metop-B) GAC high and low gain counts to the proper radiance. The gains vary temporally and are given as a function of day since launch, where the launch date is provided. The satellite and band specific solar constants are also provided to convert radiances into reflectances based on the solar incoming irradiance used by the MODIS Science Team. The resulting radiance uncertainty is given in %. The calibration coefficients are only valid for the start and end dates listed for each satellite. Three data variables are derived from 4 km AVHRR Global Area Coverage data: Calibrated 0.63 micron channel reflectance (unitless), Calibrated 0.86 micron reflectance (unitless), Calibrated 1.61 micron reflectance (unitless) |
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| identifier | gov.noaa.ncdc:C00860 |
| isPartOf | NOAA Climate Data Record (CDR) of Clear-Sky Radiation Properties, Version 1.0 |
| issued | 2015-08-01T00:00:00.000+00:00 |
| keyword |
[
"Earth Science > Atmosphere > Atmospheric Radiation > Reflectance",
"Earth Science > Atmosphere > Atmospheric Radiation > Shortwave Radiation",
"Earth Science > Atmosphere > Atmospheric Radiation > Solar Radiation",
"Earth Science > Atmosphere > Clouds > Cloud Radiative Transfer",
"Earth Science > Atmosphere > Clouds > Cloud Properties",
"Earth Science > Land Surface > Surface Radiative Properties > Albedo",
"Earth Science > Land Surface > Surface Radiative Properties > Reflectance",
"Atmospheric - Composition - Earth Radiation Budget",
"Atmospheric - Composition - Surface Radiation Budget",
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"Vertical Location > Boundary Layer",
"Vertical Location > Stratosphere",
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"AVHRR-2 > Advanced Very High Resolution Radiometer-2",
"AVHRR-3 > Advanced Very High Resolution Radiometer-3",
"GOES I-M IMAGER",
"TIROS-N > Television Infrared Observation Satellite-N",
"NOAA-6 > National Oceanic & Atmospheric Administration-6",
"NOAA-7 > National Oceanic & Atmospheric Administration-7",
"NOAA-8 > National Oceanic & Atmospheric Administration-8",
"NOAA-9 > National Oceanic & Atmospheric Administration-9",
"NOAA-10 > National Oceanic & Atmospheric Administration-10",
"NOAA-11 > National Oceanic & Atmospheric Administration-11",
"NOAA-12 > National Oceanic & Atmospheric Administration-12",
"NOAA-14 > National Oceanic & Atmospheric Administration-14",
"NOAA-15 > National Oceanic & Atmospheric Administration-15",
"NOAA-16 > National Oceanic & Atmospheric Administration-16",
"NOAA-17 > National Oceanic & Atmospheric Administration-17",
"NOAA-18 > National Oceanic & Atmospheric Administration-18",
"NOAA-19 > National Oceanic & Atmospheric Administration-19",
"METOP-A > Meteorological Operational Satellite - A",
"METOP-B > Meteorological Operational Satellite - B",
"GOES-1 > Geostationary Operational Environmental Satellite 1",
"GOES-2 > Geostationary Operational Environmental Satellite 2",
"GOES-3 > Geostationary Operational Environmental Satellite 3",
"GOES-4 > Geostationary Operational Environmental Satellite 4",
"GOES-5 > Geostationary Operational Environmental Satellite 5",
"GOES-6 > Geostationary Operational Environmental Satellite 6",
"GOES-7 > Geostationary Operational Environmental Satellite 7",
"GOES-8 > Geostationary Operational Environmental Satellite 8",
"GOES-9 > Geostationary Operational Environmental Satellite 9",
"GOES-10 > Geostationary Operational Environmental Satellite 10",
"GOES-11 > Geostationary Operational Environmental Satellite 11",
"GOES-12 > Geostationary Operational Environmental Satellite 12",
"GOES-13 > Geostationary Operational Environmental Satellite 13",
"1 km - < 10 km or approximately .01 degree - < .09 degree",
"Hourly - < Daily",
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| landingPage | https://www.ncdc.noaa.gov |
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2015-08-01T00:00:00.000+00:00 |
| publisher |
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|
| references |
[
"https://doi.org/10.7289/V5HT2M8T"
]
|
| rights | otherRestrictions |
| spatial | 180.0,-90.0,-180.0,90.0 |
| temporal | 1978-11-05T00:00:00+00:00/2015-12-31T00:00:00+00:00 |
| title | NOAA Climate Data Record (CDR) of Visible and Near Infrared Reflectance from AVHRR, Version 1.0 |
