S3A_OL_1_ERR_1

OLCI/SENTINEL-3A L1 Reduced Resolution Top of Atmosphere Reflectance

Version 1 eng
  • Abstract
    The Ocean and Land Colour Instrument (OLCI) on board European Earth Observation satellite mission, SENTINEL-3, is a push-broom imaging spectrometer that measures solar radiation reflected by the Earth at a ground spatial resolution of around 300m, over all surfaces, in 21 spectral bands. OLCI is based on the imaging design of ENVISAT's Medium Resolution Imaging Spectrometer (MERIS). It has a 1270km wide swath. For more information about the instrument and the mission, visit "Sentinel Online" at https://sentinel.esa.int/web/sentinel/home. The OLCI Level-1B product, S3A_OL_1_ERR, is Level 1 Reduced Resolution (~1.2km) Top of the Atmosphere Reflectance product. This is composed of an information package map, called a manifest, 22 measurement data files, and seven annotation data files. The 21 measurement data files (one for each band) top of Atmosphere (TOA) radiances, calibrated to geophysical units (W.m-2. sr-1 µm-1), georeferenced onto the Earth's surface, spatially resampled onto an evenly spaced grid. Seven annotation files information on illumination and observation geometry, environment data (meteorological data) and quality and classification flags. Both measurement data files and annotation data files are written in netCDF 4 format. The manifest file is in XML format and contains metadata associated with the instrument and the processing. The S3A_OL_1_EFR is generated in Earth Observation (EO) processing mode and all parameters in this product are provided for each re-gridded pixel on the product image and for each removed pixel. The OL_1_EFR product package is described below: Element name Description Manifest.safe SENTINEL-SAFE product manifest Oa##_radiance.nc Radiance for OLCI acquisition bands 01 to 21 Time_coordinates.nc Time stamp annotations Geo_coordinates.nc High resolution georeferencing data Quality_flags.nc Classification and quality flags Tie_geo_coordinates.nc Low resolution georeferencing data Tie_geometries.nc Sun and view angles Tie_meteo.nc ECMWF meteorology data Instrument_data.nc Instrument data note: Oa## represents all the OLCI channels (Oa1 to Oa21). For more information about the product, read the SENTINEL-3 OLCI User Guide at https://sentinel.esa.int/web/sentinel/user-guides/sentinel-3-olci

Data Identification Fields:

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    Data Dates
    Creation
    Processing Level

    1B

    Quality
    Quality information is provided in product metadata or check the data Sentinel-3 website.
    Collection Progress

    Planned

    Use Constraints
    The Sentinel-3A data is available publicly through LAADS Website at no cost to registered users who have agreed to the terms and conditions set by NASA and the European Space Agency (ESA) to access the data.
    Access Constraints

    Read data access conditions at: https://sentinel.esa.int/web/sentinel/sentinel-data-access-description

    Science Keywords
    • EARTH SCIENCE
    • SPECTRAL/ENGINEERING
    • INFRARED WAVELENGTHS
    • REFLECTED INFRARED
    • EARTH SCIENCE
    • SPECTRAL/ENGINEERING
    • PLATFORM CHARACTERISTICS
    • EARTH SCIENCE
    • SPECTRAL/ENGINEERING
    • PLATFORM CHARACTERISTICS
    • ATTITUDE CHARACTERISTICS
    • EARTH SCIENCE
    • SPECTRAL/ENGINEERING
    • VISIBLE WAVELENGTHS
    • VISIBLE RADIANCE
Other Descriptive Keywords
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ISO Topic Categories
  • IMAGERY/BASE MAPS/EARTH COVER

Acquisition Information Fields:

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Platforms
  • Earth Observation Satellites
    SENTINEL-3
    Instruments
    • OLCI
Projects
Project Short Name Campaigns Project Dates
GMES No campaigns listed. No dates provided.

Temporal Information Fields:

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Spatial Information Fields:

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Location Keywords

Data Centers

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  • NASA/GSFC/SED/ESD/HBSL/BISB/MODAPS
    DISTRIBUTOR
    MODIS Adaptive Processing System, Biospheric Information Systems Branch, Hydrospheric and Biospheric Sciences Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA

    This data center does not have any addresses listed.

    This data center does not have any contact mechanisms listed.

Data Contacts

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  • Technical Contact
    LAADS USER SUPPORT TEAM

    LAADS User Support Team
    NASA/GSFC
    Mail Code: 619
    Greenbelt, MD 20771

  • Technical Contact
    Sentinel Data Technical support

    This contact does not have any addresses listed.

  • ASAD
    Metadata Author
    ASAD ULLAH

    This contact does not have any addresses listed.

  • Data Center Contact
    MODAPS USER SUPPORT TEAM

    NASA/GSFC/SED/ESD/HBSL/BISB/MODAPS

    MODAPS USER SUPPORT TEAM
    NASA/GSFC
    Mail Code: 619
    Greenbelt, MD 20771

Collection Citations Fields:

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    Collection Citations
    • OLCI/SENTINEL-3A L1 Reduced Resolution Top of Atmosphere Reflectance

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      Released:

      • Not provided