<!--Metadata for L2 Aerosol Products-->

<products xmlns="http://oceancolor.gsfc.nasa.gov" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://oceancolor.gsfc.nasa.gov product-1.0.xsd">

    <metadata name="title">
   		<type>string</type>
    </metadata>
    
    <processing_version>v1.0.0</processing_version>
    <conventions>CF-1.6</conventions>
    <metadata_conventions>Unidata Dataset Discovery v1.0</metadata_conventions>
    <license>http://science.nasa.gov/earth-science/earth-science-data/data-information-policy/</license>
    <naming_authority>gov.nasa.gsfc.sci.oceandata</naming_authority>
    <institution>NASA Goddard Space Flight Center, Ocean Biology Processing Group</institution>
    <keywords_vocabulary>NASA Global Change Master Directory (GCMD) Science Keywords</keywords_vocabulary>
    <standard_name_vocabulary>NetCDF Climate and Forecast (CF) Metadata Convention</standard_name_vocabulary>
    <creator_name>NASA/GSFC/OBPG</creator_name>
    <creator_email>data@oceancolor.gsfc.nasa.gov</creator_email>
    <creator_url>http://oceandata.sci.gsfc.nasa.gov</creator_url>
    <project>Ocean Biology Processing Group (NASA/GSFC/OBPG)</project>
    <publisher_name>NASA/GSFC/OBPG</publisher_name>
    <publisher_url>http://oceandata.sci.gsfc.nasa.gov</publisher_url>
    <publisher_email>data@oceancolor.gsfc.nasa.gov</publisher_email>

    <!--
    <identifier_product_doi_authority>http://dx.doi.org</identifier_product_doi_authority>
    <identifier_product_doi>10.5067/PACE/OCI_OC.2014.0</identifier_product_doi>
    -->
    
    <processing_level>L2</processing_level>
    <cdm_data_type>swath</cdm_data_type>
    <geospatial_lat_units>degrees north</geospatial_lat_units>
    <geospatial_lon_units>degrees east</geospatial_lon_units>

    <metadata name="instrument">
   		<type>string</type>
    </metadata>
    <metadata name="platform">
   		<type>string</type>
    </metadata>
    <metadata name="time_coverage_start">
   		<type>string</type>
    </metadata>
    <metadata name="time_coverage_end">
   		<type>string</type>
    </metadata>
    <metadata name="date_created">
   		<type>string</type>
    </metadata>
    <metadata name="start_direction">
   		<type>string</type>
    </metadata>
    <metadata name="end_direction">
   		<type>string</type>
    </metadata>
    <metadata name="day_night_flag">
   		<type>string</type>
    </metadata>
    <metadata name="orbit_number">
   		<type>int</type>
    </metadata>
    <metadata name="start_center_longitude">
   		<type>float</type>
    </metadata>
    <metadata name="start_center_latitude">
   		<type>float</type>
    </metadata>
    <metadata name="end_center_longitude">
   		<type>float</type>
    </metadata>
    <metadata name="end_center_latitude">
   		<type>float</type>
    </metadata>
    <metadata name="northernmost_latitude">
   		<type>float</type>
    </metadata>
    <metadata name="southernmost_latitude">
   		<type>float</type>
    </metadata>
    <metadata name="easternmost_longitude">
   		<type>float</type>
    </metadata>
    <metadata name="westernmost_longitude">
   		<type>float</type>
    </metadata>
    <metadata name="geospatial_lat_max">
   		<type>float</type>
    </metadata>
    <metadata name="geospatial_lat_min">
   		<type>float</type>
    </metadata>
    <metadata name="geospatial_lon_max">
   		<type>float</type>
    </metadata>
    <metadata name="geospatial_lon_min">
   		<type>float</type>
    </metadata>
    <metadata name="earth_sun_distance_correction">
   		<type>double</type>
    </metadata>

    <metadata name="GRingPointLatitude">
   		<type>float</type>
    </metadata>
    <metadata name="GRingPointLongitude">
   		<type>float</type>
    </metadata>
    <metadata name="GRingPointSequenceNo">
   		<type>int</type>
    </metadata>
 
    <group name="sensor_band_parameters">
	<product name="wavelength">
  		<type>int</type>
  		<long_name>wavelengths</long_name>
  		<units>nm</units>
  		<_FillValue>-32767</_FillValue>
  		<valid_min>0</valid_min>
  		<valid_max>1000</valid_max>
	</product>
	<product name="vcal_gain">
  		<type>float</type>
  		<long_name>Vicarious Calibration Gain</long_name>
  		<units>nm</units>
  		<_FillValue>-32767.0</_FillValue>
  		<valid_min>0</valid_min>
  		<valid_max>2.0</valid_max>
	</product>
	<product name="vcal_offset">
  		<type>float</type>
  		<long_name>Vicarious Calibration Offset</long_name>
  		<units>mW cm^-2 um^-1 sr^-1</units>
  		<_FillValue>-32767.0</_FillValue>
  		<valid_min>0.0</valid_min>
  		<valid_max>10.0</valid_max>
	</product>
	<product name="F0">
  		<type>float</type>
  		<long_name>Mean Solar Flux</long_name>
  		<units>W m^-2 um^-1</units>
  		<_FillValue>-32767.0</_FillValue>
  		<valid_min>0.0</valid_min>
  		<valid_max>250.0</valid_max>
	</product>
    </group>

    <group name="scan_line_attributes">
	<product name="year">
  		<type>int</type>
  		<long_name>Scan year</long_name>
  		<units>years</units>
  		<_FillValue>-32767</_FillValue>
  		<valid_min>1900</valid_min>
  		<valid_max>2100</valid_max>
	</product>
	<product name="day">
  		<type>int</type>
  		<long_name>Scan day of year</long_name>
  		<units>days</units>
  		<_FillValue>-32767</_FillValue>
  		<valid_min>0</valid_min>
  		<valid_max>366</valid_max>
	</product>
	<product name="msec">
  		<type>int</type>
  		<long_name>Scan time, milliseconds of day</long_name>
  		<units>milliseconds</units>
  		<_FillValue>-32767</_FillValue>
  		<valid_min>0</valid_min>
  		<valid_max>86400000</valid_max>
	</product>
	<product name="mside">
  		<type>uchar</type>
  		<long_name>"Mirror Side (zero-based)"</long_name>
  		<units>none</units>
  		<_FillValue>255</_FillValue>
  		<valid_min>0</valid_min>
  		<valid_max>1</valid_max>
	</product>
	<product name="slon">
  		<type>float</type>
  		<long_name>Starting Longitude</long_name>
  		<standard_name>longitude</standard_name>
  		<units>degrees_east</units>
  		<_FillValue>-32767.0</_FillValue>
  		<valid_min>-180.0</valid_min>
  		<valid_max>180.0</valid_max>
	</product>
	<product name="clon">
  		<type>float</type>
  		<long_name>Center Longitude</long_name>
  		<standard_name>longitude</standard_name>
  		<units>degrees_east</units>
  		<_FillValue>-32767.0</_FillValue>
  		<valid_min>-180.0</valid_min>
  		<valid_max>180.0</valid_max>
	</product>
	<product name="elon">
  		<type>float</type>
  		<long_name>Ending Longitude</long_name>
  		<standard_name>longitude</standard_name>
  		<units>degrees_east</units>
  		<_FillValue>-32767.0</_FillValue>
  		<valid_min>-180.0</valid_min>
  		<valid_max>180.0</valid_max>
	</product>
	<product name="slat">
  		<type>float</type>
  		<long_name>Starting Latitude</long_name>
  		<standard_name>latitude</standard_name>
  		<units>degrees_north</units>
  		<_FillValue>-32767.0</_FillValue>
  		<valid_min>-90.0</valid_min>
  		<valid_max>90.0</valid_max>
	</product>
	<product name="clat">
  		<type>float</type>
  		<long_name>Center Latitude</long_name>
  		<standard_name>latitude</standard_name>
  		<units>degrees_north</units>
  		<_FillValue>-32767.0</_FillValue>
  		<valid_min>-90.0</valid_min>
  		<valid_max>90.0</valid_max>
	</product>
	<product name="elat">
  		<type>float</type>
  		<long_name>Ending Latitude</long_name>
  		<standard_name>latitude</standard_name>
  		<units>degrees_north</units>
  		<_FillValue>-32767.0</_FillValue>
  		<valid_min>-90.0</valid_min>
  		<valid_max>90.0</valid_max>
	</product>
	<product name="csol_z">
  		<type>float</type>
  		<long_name>Center Solar Zenith Angle</long_name>
  		<units>degrees</units>
  		<_FillValue>-32767.0</_FillValue>
  		<valid_min>-90.0</valid_min>
  		<valid_max>90.0</valid_max>
	</product>
    </group>
    <group name="navigation_data">
    	<gringpointlongitude>0</gringpointlongitude>
    	<gringpointlatitude>0</gringpointlatitude>
    	<gringpointsequence>1,2,3,4</gringpointsequence>
	<product name="longitude">
  		<type>float</type>
  		<long_name>Longitude</long_name>
  		<standard_name>longitude</standard_name>
  		<units>degrees_east</units>
  		<_FillValue>-32767.0</_FillValue>
  		<valid_min>-180.0</valid_min>
  		<valid_max>180.0</valid_max>
	</product>
	<product name="latitude">
  		<type>float</type>
  		<long_name>Latitude</long_name>
  		<standard_name>latitude</standard_name>
  		<units>degrees_north</units>
  		<_FillValue>-32767.0</_FillValue>
  		<valid_min>-90.0</valid_min>
  		<valid_max>90.0</valid_max>
	</product>
	<product name="cntl_pt_cols">
  		<type>int</type>
  		<long_name>Number of Pixel Control Points</long_name>
  		<_FillValue>-32767</_FillValue>
  		<valid_min>0</valid_min>
  		<valid_max>10000</valid_max>
	</product>
	<product name="cntl_pt_rows">
  		<type>int</type>
  		<long_name>Number of Scan Control Points</long_name>
  		<_FillValue>-32767</_FillValue>
  		<valid_min>0</valid_min>
  		<valid_max>10000</valid_max>
	</product>
	<product name="tilt">
  		<type>float</type>
  		<long_name>Sensor tilt angle</long_name>
  		<units>degrees</units>
  		<_FillValue>-32767.0</_FillValue>
  		<valid_min>-25.0</valid_min>
  		<valid_max>25.0</valid_max>
	</product>
    </group>
    <group name="processing_control">
    	<software_name>dtdb</software_name>
    	<software_version></software_version>
    	<source></source>
    	<calibration_data></calibration_data>
    	<mask_names></mask_names>
	<group name="input_parameters">
  		<ifile></ifile>
  		<ofile></ofile>
  		<l2prod></l2prod>
  		<oformat>netCDF4</oformat>
  		<oformat_depth>8bit</oformat_depth>
  		<calfile></calfile>
  		<fqfile></fqfile>
  		<parfile></parfile>
  		<cldfile></cldfile>
  		<geofile></geofile>
  		<calparfile></calparfile>
  		<metafile></metafile>
  		<pversion></pversion>
  		<suite></suite>
  		<eval>0</eval>
  		<mode>0</mode>
  		<deflate>4</deflate>
  		<spixl>1</spixl>
  		<epixl>-1</epixl>
  		<dpixl>1</dpixl>
  		<sline>1</sline>
  		<eline>-1</eline>
  		<dline>1</dline>
  		<ctl_pt_incr>1</ctl_pt_incr>
  		<proc_ocean>1</proc_ocean>
  		<proc_land>1</proc_land>
  		<proc_sst>1</proc_sst>
	</group>
    </group>
    <group name="geolocation">
	<product name="solz">
		<type>float</type>
		<long_name>Solar Zenith Angle, Cell to Sun</long_name>
		<units>degrees</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>0.0</valid_min>
		<valid_max>180.0</valid_max>
	</product>
	<product name="senz">
		<type>float</type>
		<long_name>Sensor Zenith Angle, Cell to Sensor</long_name>
		<units>degrees</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>0.0</valid_min>
		<valid_max>180.0</valid_max>
	</product>
	<product name="relaz">
		<type>float</type>
		<long_name>Relative Azimuth Angle, Cell to Sensor</long_name>
		<units>degrees</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>-180.0</valid_min>
		<valid_max>180.0</valid_max>
	</product>
	<product name="scattang">
		<type>float</type>
		<long_name>Scattering Angle</long_name>
		<units>degrees</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>0.0</valid_min>
		<valid_max>180.0</valid_max>
	</product>
	<product name="land_water">
		<type>uchar</type>
		<long_name>Land-Water Mask (0=water, 1=land)</long_name>
		<units>none</units>
		<_FillValue>255</_FillValue>
		<valid_min>0</valid_min>
		<valid_max>1</valid_max>
	</product>
	<product name="elev">
		<type>float</type>
		<long_name>Terrain Height at Pixel Location</long_name>
		<units>meters</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>-1000</valid_min>
		<valid_max>10000</valid_max>
	</product>
    </group>
    <group name="ancillary">
	<product name="cloud_mask">
		<type>uchar</type>
		<long_name>Cloud Mask  1 = cloud, 0 = clear</long_name>
		<units>none</units>
		<_FillValue>255</_FillValue>
		<valid_min>0</valid_min>
		<valid_max>1</valid_max>
	</product>
	<product name="windspeed">
		<type>float</type>
		<long_name>Wind Speed based on NCEP reanalysis</long_name>
		<units>meters per second</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>0.0</valid_min>
		<valid_max>100.0</valid_max>
	</product>
	<product name="windangle">
		<type>float</type>
		<long_name>Wind Direction based on NCEP reanalysis</long_name>
		<units>degrees</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>0.0</valid_min>
		<valid_max>360.0</valid_max>
	</product>
	<product name="water_vapor">
		<type>float</type>
		<long_name>Total precipitable water vapor</long_name>
		<units>mm</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>0.0</valid_min>
		<valid_max>100.0</valid_max>
	</product>
	<product name="pressure">
		<type>float</type>
		<long_name>Surface air pressure</long_name>
		<units>Pa</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>0.0</valid_min>
		<valid_max>110000.0</valid_max>
	</product>
    </group>
    <group name="observations">
	<product name="rhot_410">
		<type>float</type>
		<long_name>Observed TOA Reflectances at 0.41 micron</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>0.0</valid_min>
		<valid_max>1.3</valid_max>
	</product>
	<product name="rhot_445">
		<type>float</type>
		<long_name>Observed TOA Reflectances at 0.445 micron</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>0.0</valid_min>
		<valid_max>1.3</valid_max>
	</product>
	<product name="rhot_490">
		<type>float</type>
		<long_name>Observed TOA Reflectances at 0.490 micron</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>0.0</valid_min>
		<valid_max>1.3</valid_max>
	</product>
	<product name="rhot_550">
		<type>float</type>
		<long_name>Observed TOA Reflectances at 0.55 micron</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>0.0</valid_min>
		<valid_max>1.3</valid_max>
	</product>
	<product name="rhot_670">
		<type>float</type>
		<long_name>Observed TOA Reflectances at 0.67 micron</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>0.0</valid_min>
		<valid_max>1.3</valid_max>
	</product>
	<product name="rhot_865">
		<type>float</type>
		<long_name>Observed TOA Reflectances at 0.865 micron</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>0.0</valid_min>
		<valid_max>1.3</valid_max>
	</product>
	<product name="rhot_1240">
		<type>float</type>
		<long_name>Observed TOA Reflectances at 1.24 micron</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>0.0</valid_min>
		<valid_max>1.3</valid_max>
	</product>
	<product name="rhot_1380">
		<type>float</type>
		<long_name>Observed TOA Reflectances at 1.38 micron</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>0.0</valid_min>
		<valid_max>1.3</valid_max>
	</product>
	<product name="rhot_1610">
		<type>float</type>
		<long_name>Observed TOA Reflectances at 1.61 micron</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>0.0</valid_min>
		<valid_max>1.3</valid_max>
	</product>
	<product name="rhot_2250">
		<type>float</type>
		<long_name>Observed TOA Reflectances at 2.25 micron</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>0.0</valid_min>
		<valid_max>1.3</valid_max>
	</product>
    </group>
    <group name="geophysical_data">
	<product name="fmf_550">
		<type>float</type>
		<long_name>Fine Mode Fraction of AOD at 550 nm</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>0.0</valid_min>
		<valid_max>1.0</valid_max>
	</product>
	<product name="angstrom">
		<type>float</type>
		<long_name>Angstrom Exponent (550/865 nm) over water, (490/670 nm) over land</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>-0.5</valid_min>
		<valid_max>2.5</valid_max>
	</product>
	<product name="aerosol_type">
		<type>short</type>
		<long_name>Aerosol Type: 0=dust, \
    1=smoke, 2=high altitude smoke, 3=pyrocumulonimbus clouds, 4=non-smoke fine mode, \
    5=mixed, 6=background, 7=fine dominated, 8=missing/no retrieval</long_name>
		<units>none</units>
		<_FillValue>-32767</_FillValue>
		<valid_min>0</valid_min>
		<valid_max>7</valid_max>
	</product>
	<product name="quality">
		<type>short</type>
		<long_name>Quality Flag for Aerosol retrievals, 0=none, 1=poor, \
    2=Moderate, 3=Good</long_name>
		<units>none</units>
		<_FillValue>-32767</_FillValue>
		<valid_min>0</valid_min>
		<valid_max>3</valid_max>
	</product>
	<product name="l2_flags">
		<type>uint</type>
		<long_name>Level-2 Processing Flags</long_name>
		<units>none</units>
		<_FillValue>4294967295</_FillValue>
		<valid_min>0</valid_min>
		<valid_max>4294967294</valid_max>
      <flag_masks>1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824</flag_masks> 
      <flag_meanings>ATMFAIL LAND PRODWARN HIGLINT HILT HISATZEN COASTZ SPARE STRAYLIGHT CLDICE COCCOLITH TURBIDW HISOLZEN SPARE LOWLW CHLFAIL NAVWARN ABSAER SPARE MAXAERITER MODGLINT CHLWARN ATMWARN SPARE SEAICE NAVFAIL FILTER SPARE5 BOWTIEDEL HIPOL PRODFAIL</flag_meanings>
	</product>
	<product name="aot_380">
		<type>float</type>
		<long_name>Optical thickness for 0.38 micron reference</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>-0.01</valid_min>
		<valid_max>5.0</valid_max>
		<valid_logmin>-2.0</valid_logmin>
		<valid_logmax>2.0</valid_logmax>
	</product>
	<product name="aot_490">
		<type>float</type>
		<long_name>Optical thickness for 0.49 micron reference</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>-0.01</valid_min>
		<valid_max>5.0</valid_max>
		<valid_logmin>-2.0</valid_logmin>
		<valid_logmax>2.0</valid_logmax>
	</product>
	<product name="aot_550">
		<type>float</type>
		<long_name>Optical thickness for 0.55 micron reference</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>-0.01</valid_min>
		<valid_max>5.0</valid_max>
		<valid_logmin>-2.0</valid_logmin>
		<valid_logmax>2.0</valid_logmax>
	</product>
	<product name="aot_670">
		<type>float</type>
		<long_name>Optical thickness for 0.67 micron reference</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>-0.01</valid_min>
		<valid_max>5.0</valid_max>
		<valid_logmin>-2.0</valid_logmin>
		<valid_logmax>2.0</valid_logmax>
	</product>
	<product name="aot_865">
		<type>float</type>
		<long_name>Optical thickness for 0.865 micron reference</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>-0.01</valid_min>
		<valid_max>5.0</valid_max>
		<valid_logmin>-2.0</valid_logmin>
		<valid_logmax>2.0</valid_logmax>
	</product>
	<product name="aot_1240">
		<type>float</type>
		<long_name>Optical thickness for 1.24 micron reference</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>-0.01</valid_min>
		<valid_max>5.0</valid_max>
		<valid_logmin>-2.0</valid_logmin>
		<valid_logmax>2.0</valid_logmax>
	</product>
	<product name="aot_1610">
		<type>float</type>
		<long_name>Optical thickness for 1.61 micron reference</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>-0.01</valid_min>
		<valid_max>5.0</valid_max>
		<valid_logmin>-2.0</valid_logmin>
		<valid_logmax>2.0</valid_logmax>
	</product>
	<product name="aot_2250">
		<type>float</type>
		<long_name>Optical thickness for 2.25 micron reference</long_name>
		<units>none</units>
		<_FillValue>-32767.0</_FillValue>
		<valid_min>-0.01</valid_min>
		<valid_max>5.0</valid_max>
		<valid_logmin>-2.0</valid_logmin>
		<valid_logmax>2.0</valid_logmax>
	</product>
    </group>
</products>
    
