Supported ENVISAT Products

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MERIS Level 2 Flag Codings

  Flags of ENVISAT MER_RR__2P_flags Products

Identifier Bit Index Description
"LAND" 23 Land product available
"CLOUD" 22 Cloud product available
"WATER" 21 Water product available
"PCD_1_13" 20 Uncertain normalized surface reflectance
"PCD_14" 19 Uncertain total water vapour content
"PCD_15" 18 Uncertain algal pigment index 1 or cloud top pressure or top of atmosphere vegetation index
"PCD_16" 17 Uncertain yellow substance and total suspended matter or rectified reflectances
"PCD_17" 16 Uncertain algal pigment index 2 or bottom of atmosphere vegetation index
"PCD_18" 15 Uncertain PAR or cloud albedo or land surface pressure
"PCD_19" 14 Uncertain aerosol type and optical thickness or cloud optical thickness
"COASTLINE" 13 Coastline pixel
"COSMETIC" 12 Cosmetic pixel (flag from level-1B)
"SUSPECT" 11 Suspect pixel (flag from level-1B)
"ABSOA_CONT" 10 Continental absorbing aerosol
"ABSOA_DUST" 9 Dust-like absorbing aerosol
"CASE2_S" 8 Turbid water
"CASE2_ANOM" 7 & 21 Anomalous scattering water
"TOAVI_BRIGHT" 7 & 23 Bright pixel flagged by TOAVI processing
"CASE2_Y" 6 & 21 Yellow substance loaded water
"TOAVI_BAD" 6 & 23 Bad pixel flagged by MGVI processing
"ICE_HAZE" 5 & 21 Ice at high aerosol load pixel
"TOAVI_CSI" 5 & 23 Cloud, snow or ice flagged by MGVI
"MEDIUM_GLINT" 4 & 21 Corrected for glint
"TOAVI_WS" 4 & 23 Water or deep shadow flagged by TOAVI
"DDV" 3 Dense dark vegetation
"HIGH_GLINT" 2 & 21 High (uncorrected) glint
"TOAVI_INVAL_REC" 2 & 23 Invalid rectification flagged by TOAVI
"P_CONFIDENCE" 1 The two pressure estimates do not compare successfully
"LOW_PRESSURE" 0 Computed pressure lower than ECMWF one