Full Resolution Full Swath Geolocated and Calibrated TOA Radiance
The Medium Resolution Imaging Spectrometer (MERIS) is one of 10 sensors deployed in March of 2002 on board the polar-orbiting Envisat-1 environmental research satellite by the European Space Agency (ESA). The MERIS instrument is a moderate-resolution wide field-of-view push-broom imaging spectroradiometer capable of sensing in the 390 nm to 1040 nm spectral range. Being a programmable instrument, it had the unique capability of selectively adjusting the width and location of its 15 bands through ground command. The instrument has a 68.5-degree field of view and a swath width of 1150 meters, providing a global coverage every 3 days at 300 m resolution. Communication with the Envisat-1 satellite was lost suddenly on the 8th of April, 2012, just weeks after celebrating its 10th year in orbit. All attempts to re-establish contact were unsuccessful, and the end of the mission was declared on May 9th, 2012. The 4th reprocessing cycle, in 2020, has produced both the full-resolution and reduced-resolution L1 and L2 MERIS products. EN1_MDSI_MER_FRS_1P is the short-name for the MERIS Level-1 full resolution, full swath, geolocated and calibrated top-of-atmosphere (TOA) radiance product. This product contains the TOA upwelling spectral radiance measurements. The in-band reference irradiances for the 15 MERIS bands are computed by averaging the in-band solar irradiance for each pixel. Each pixel’s in-band solar irradiance is computed by integrating the reference solar spectrum with the band-pass of each pixel. The Level-1 product contains 22 data files: 15 files contain radiances for each band (one band per file) along with associated error estimates, and 7 annotation data files. It also includes a Manifest file that provides metadata information describing the product.
Resources
4 resources available
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Original Metadata
ISO -
Resource 2
BIN -
Resource 3
BIN -
Resource 4
BIN
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"026:00"
]
|
| contactPoint |
{
"fn": "Earthdata Forum",
"@type": "vcard:Contact",
"hasEmail": "mailto:earthdata-support@nasa.gov"
}
|
| description | The Medium Resolution Imaging Spectrometer (MERIS) is one of 10 sensors deployed in March of 2002 on board the polar-orbiting Envisat-1 environmental research satellite by the European Space Agency (ESA). The MERIS instrument is a moderate-resolution wide field-of-view push-broom imaging spectroradiometer capable of sensing in the 390 nm to 1040 nm spectral range. Being a programmable instrument, it had the unique capability of selectively adjusting the width and location of its 15 bands through ground command. The instrument has a 68.5-degree field of view and a swath width of 1150 meters, providing a global coverage every 3 days at 300 m resolution. Communication with the Envisat-1 satellite was lost suddenly on the 8th of April, 2012, just weeks after celebrating its 10th year in orbit. All attempts to re-establish contact were unsuccessful, and the end of the mission was declared on May 9th, 2012. The 4th reprocessing cycle, in 2020, has produced both the full-resolution and reduced-resolution L1 and L2 MERIS products. EN1_MDSI_MER_FRS_1P is the short-name for the MERIS Level-1 full resolution, full swath, geolocated and calibrated top-of-atmosphere (TOA) radiance product. This product contains the TOA upwelling spectral radiance measurements. The in-band reference irradiances for the 15 MERIS bands are computed by averaging the in-band solar irradiance for each pixel. Each pixel’s in-band solar irradiance is computed by integrating the reference solar spectrum with the band-pass of each pixel. The Level-1 product contains 22 data files: 15 files contain radiances for each band (one band per file) along with associated error estimates, and 7 annotation data files. It also includes a Manifest file that provides metadata information describing the product. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Original Metadata",
"format": "ISO",
"mediaType": "text/xml",
"conformsTo": "http://www.isotc211.org/2005/gmi",
"description": "The metadata's original source.",
"downloadURL": "https://cmr.earthdata.nasa.gov/search/concepts/C2151211533-LAADS.iso19115"
},
{
"@type": "dcat:Distribution",
"format": "BIN",
"mediaType": "application/octet-stream",
"downloadURL": "https://earth.esa.int/eogateway/search?skipDetection=true&text=&category=Document%2520library&filter=Envisat%2CMERIS"
},
{
"@type": "dcat:Distribution",
"format": "BIN",
"mediaType": "application/octet-stream",
"downloadURL": "https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/489/EN1_MDSI_MER_FRS_1P"
},
{
"@type": "dcat:Distribution",
"format": "BIN",
"mediaType": "application/octet-stream",
"downloadURL": "https://ladsweb.modaps.eosdis.nasa.gov/search/order/2/EN1_MDSI_MER_FRS_1P--489"
}
]
|
| identifier | 10.5270/EN1-w5xkqmx |
| keyword |
[
"earth-science-cloud-properties-atmosphere-clouds-cloud-properties-cloud-ceiling",
"earth-science-clouds-atmosphere-cloud-microphysics-cloud-precipitable-water",
"earth-science-infrared-wavelengths-spectral-engineering-infrared-radiance",
"earth-science-landscape-land-surface-landscape-ecology",
"earth-science-ocean-optics-oceans-ocean-color",
"earth-science-ultraviolet-wavelengths-spectral-engineering-ultraviolet-radiance",
"earth-science-visible-wavelengths-spectral-engineering-visible-radiance"
]
|
| license | https://www.usa.gov/government-works |
| modified | 2026-05-11 |
| programCode |
[
"026:000"
]
|
| publisher |
{
"name": "NASA/GSFC/SED/ESD/HBSL/BISB/LAADS",
"@type": "org:Organization"
}
|
| spatial |
"["CARTESIAN",[{"NorthBoundingCoordinate":90,"WestBoundingCoordinate":-180,"EastBoundingCoordinate":180,"SouthBoundingCoordinate":-90}]]"
|
| temporal | 2002-05-17/2012-04-08 |
| theme |
[
"Earth Science"
]
|
| title | Full Resolution Full Swath Geolocated and Calibrated TOA Radiance |
