<?xml version="1.0"?> 
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  <product>
    <filename>L3_ENV_MER_T550_y__20020101_GLOB_SI_ACR_9277x9277_-90+90+-180+180_0000</filename>
    <level>3</level>
    <period>yearly</period>
  </product>
  <documentation>
    <doc_atbd>xxxxx_ATBD_xxxxx</doc_atbd>
    <doc_iodd>xxxxx_IODD_xxxxx</doc_iodd>
  </documentation>
  <instrument_information>
    <instrument_short_name>MERIS</instrument_short_name>
    <instrument_long_name>Medium Resolution Imaging Spectrometer</instrument_long_name>
    <plateform_name>ENVISAT</plateform_name>
  </instrument_information>
  <processing_information>
    <processing_centre>ACRI-ST</processing_centre>
    <processing_software_name>MKL3</processing_software_name>
    <processing_software_version>MKL3/4.0a</processing_software_version>
    <processing_utc>25-MAR-0006 21:51:43.000000</processing_utc>
    <processing_parameters> 8 2160 2 0.600000 0 1 -180.000000 180.000000 -90.000000 90.000000 0</processing_parameters>
  </processing_information>
  <input_files_information>
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  <time_coverage>
    <start_utc>01-MAY-2002 01:51:37.680648</start_utc>
    <start_mjdp>    851.077519451944</start_mjdp>
    <stop_utc>31-DEC-2002 23:26:20.995223</stop_utc>
    <stop_mjdp>   1095.976631889155</stop_mjdp>
  </time_coverage>
  <grid_information>
    <aoi_name>global</aoi_name>
    <grid_type>2</grid_type>
    <grid_name>sinusoidal</grid_name>
    <longitude_discretisation>
      <minimum>    -180.000</minimum>
      <maximum>     180.000</maximum>
      <step_deg>    0.083333</step_deg>
      <step_km>    9.276625</step_km>
      <longitude_units>degrees_east</longitude_units>
    </longitude_discretisation>
    <latitude_discretisation>
      <minimum>     -90.000</minimum>
      <maximum>      90.000</maximum>
      <step_deg>    0.083333</step_deg>
      <step_km>    9.276625</step_km>
      <latitude_units>degrees_north</latitude_units>
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    <registration>5</registration>
    <straddle>0</straddle>
    <earth_radius>    6378.137</earth_radius>
    <nb_bins_equator>4320</nb_bins_equator>
    <nb_bins_latitude>2160</nb_bins_latitude>
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    <var_code>10</var_code>
    <var_short_name>T550</var_short_name>
    <var_long_name>Aerosol optical thickness over land and water (550nm)</var_long_name>
    <var_unit>dl</var_unit>
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        <gain> 1.511291e-01</gain>
        <offset> 1.000000e+00</offset>
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        <offset> 0.000000e+00</offset>
        <equation>value=code</equation>
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      <name>mean</name>
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        <mode>1</mode>
        <gain> 1.006146e-04</gain>
        <offset> 5.073575e-03</offset>
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      </coding>
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      <name>stdev</name>
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      <coding>
        <mode>1</mode>
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        <offset> 0.000000e+00</offset>
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    <data_set>
      <name>fmin</name>
      <format>SS</format>
      <coding>
        <mode>1</mode>
        <gain> 4.882962e-05</gain>
        <offset> 0.000000e+00</offset>
        <equation>value=offset+code*gain</equation>
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      <name>fmax</name>
      <format>SS</format>
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        <mode>1</mode>
        <gain> 4.863739e-05</gain>
        <offset> 6.299021e-03</offset>
        <equation>value=offset+code*gain</equation>
      </coding>
    </data_set>
  </variable_information>
  <coverage_statistics>
    <size_grid>5940422</size_grid>
    <nb_bins>5006083</nb_bins>
    <pct_bins>       84.27</pct_bins>
    <nb_valid_bins>5006083</nb_valid_bins>
    <pct_valid_bins>      100.00</pct_valid_bins>
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