Envisat MERIS Full Resolution - Level 1 [MER_FRS_1P/ME_1_FRG] 2010-11
The MERIS Level 1 Full Resolution (FR) product contains the Top of Atmosphere (TOA) upwelling spectral radiance measures. The in-band reference irradiances for the 15 MERIS bands are computed by averaging the in-band solar irradiance of each pixel. The in-band solar irradiance of each pixel is computed by integrating the reference solar spectrum with the band-pass of each pixel. The MERIS FR Level 1 product has Sentinel 3-like format starting from the 4th reprocessing data released to users in July 2020. Each measurement and annotation data file is in NetCDF 4. The Level 1 product is composed of 22 data files: 15 files containing radiances at each band (one band per file), accompanied by the associated error estimates, and 7 annotation data files. The 15 sun spectral flux values provided in the instrument data file of the Level 1 products are the in-band reference irradiances adjusted for the Earth-sun distance at the time of measurement. The band-pass of each pixel is derived from on-ground and in-flight characterisation via an instrument model. The values "Band wavelength" and "Bandwidth" provided in the Manifest file of the Level 1b products are the averaged band-pass of each pixel over the instrument field of view. Auxiliary data are also listed in the Manifest file associated to each product. The Level 1 FR product covers the complete instrument swath. The product duration is not fixed and it can span up to the time interval of the input Level 0 (for a maximum of 20 minutes). Thus the estimated size of the Level 1 FR is dependent on the start/stop time of the acquired segment. During the Envisat mission, acquisition of MERIS Full Resolution data was subject to dedicated planning based on on-demand ordering and coverage of specific areas according to operational recommendations and considerations. See yearly and global density maps to get a better overview of the MERIS FR coverage.
Links
- MERIS auxiliary data - Auxiliary Data (describedby)
- MERIS Sentinel3-like L1/L2 Product Format Specification - Product Specifications (describedby)
- MERIS 4th Data Reprocessing Information - Product Specifications (describedby)
- More MERIS Documents - Other (describedby)
- MERIS Software and Tools - Tools (describedby)
- Envisat mission - Description of Envisat mission (describedby)
- MERIS instrument - Description of MERIS instrument (describedby)
- Newest First - Envisat MERIS (describedby)
- ENVISAT Software tools - Software Tools (describedby)
- Get Help? - ESA Earth Observation User Services Portal (describedby)
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- EN1_MDSI_MER_FRS_1P_20101122T095646_20101122T101527_045640_0367_20180102T004714_0100 (item)
- EN1_MDSI_MER_FRS_1P_20101122T113702_20101122T120313_045641_0368_20180102T014410_0100 (item)
- EN1_MDSI_MER_FRS_1P_20101122T233558_20101122T235012_045648_0375_20180102T023348_0100 (item)
- EN1_MDSI_MER_FRS_1P_20101123T055933_20101123T061851_045652_0379_20180102T043527_0100 (item)
- EN1_MDSI_MER_FRS_1P_20101123T092015_20101123T092921_045654_0381_20180102T063939_0100 (item)
- EN1_MDSI_MER_FRS_1P_20101123T142113_20101123T142929_045657_0384_20180102T064737_0100 (item)
- EN1_MDSI_MER_FRS_1P_20101123T160113_20101123T160727_045658_0385_20180102T071541_0100 (item)
- EN1_MDSI_MER_FRS_1P_20101124T020457_20101124T020806_045664_0391_20180102T085447_0100 (item)
- EN1_MDSI_MER_FRS_1P_20101124T084316_20101124T090001_045668_0395_20180102T114217_0100 (item)
- EN1_MDSI_MER_FRS_1P_20101124T102346_20101124T104224_045669_0396_20180102T115244_0100 (item)
- EN1_MDSI_MER_FRS_1P_20101124T134505_20101124T135120_045671_0398_20180109T152156_0100 (item)
- EN1_MDSI_MER_FRS_1P_20101124T170454_20101124T171213_045673_0400_20180102T115946_0100 (item)
- EN1_MDSI_MER_FRS_1P_20101124T184458_20101124T185101_045674_0401_20180102T134618_0100 (item)
- EN1_MDSI_MER_FRS_1P_20101124T222354_20101124T223436_045676_0403_20180102T142335_0100 (item)
- EN1_MDSI_MER_FRS_1P_20101125T112720_20101125T115153_045684_0411_20180102T194947_0100 (item)
- EN1_MDSI_MER_FRS_1P_20101125T144758_20101125T145653_045686_0413_20180102T202216_0100 (item)
- EN1_MDSI_MER_FRS_1P_20101125T162809_20101125T163608_045687_0414_20180102T205012_0100 (item)
- EN1_MDSI_MER_FRS_1P_20101125T232557_20101125T233930_045691_0418_20180102T220848_0100 (item)
- EN1_MDSI_MER_FRS_1P_20101126T054949_20101126T061719_045695_0422_20180102T235836_0100 (item)
- EN1_MDSI_MER_FRS_1P_20101126T125239_20101126T125913_045699_0426_20180103T011427_0100 (item)
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