S3.xml

<graph id="S3">
  <version>1.0</version>

  <!--
      + Read OLCI > Rad2Refl > Reproject
        + Write bands 1-21
        + Write SZA, OZA, SAA, OAA, ozone, water, altitude
      + Read SLSTR > Rad2Refl
        + Resample R > Reproject
          + Write bands 1,5
        + Resample BT > Reproject
          + Write bands 7,8,9

      GPT bug means we can't write out band.tif, but have to use some other name.
      I chose "band_x.tif".
  -->

  <node id="Read_OLCI">
    <operator>Read</operator>
    <parameters>
      <file>${OLCIsource}/xfdumanifest.xml</file>
      <formatName>Sen3</formatName>
      <!-- https://forum.step.esa.int/t/error-when-selecting-multiple-bands-from-slstr-file/15319 -->
      <!-- Sen3 ensures that SLSTR is read as multisize -->
    </parameters>
  </node>

  <node id="Rad2Refl_OLCI">
    <operator>Rad2Refl</operator>
    <sources><source>Read_OLCI</source></sources>
    <parameters>
      <sensor>OLCI</sensor>
      <copyTiePointGrids>true</copyTiePointGrids>
      <copyFlagBandsAndMasks>true</copyFlagBandsAndMasks>
      <copyNonSpectralBands>true</copyNonSpectralBands>
    </parameters>
  </node>

  <node id="Reproject_OLCI">
    <operator>Reproject</operator>
    <sources><source>Rad2Refl_OLCI</source></sources>
    <parameters>
      <crs>EPSG:3413</crs>
      <resampling>Nearest</resampling>
      <noDataValue>NaN</noDataValue>
      <includeTiePointGrids>true</includeTiePointGrids>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa01">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa01_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa01">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa01</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_01_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa02">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa02_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa02">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa02</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_02_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa03">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa03_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa03">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa03</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_03_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa04">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa04_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa04">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa04</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_04_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa05">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa05_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa05">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa05</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_05_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa06">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa06_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa06">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa06</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_06_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa07">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa07_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa07">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa07</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_07_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa08">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa08_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa08">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa08</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_08_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa09">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa09_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa09">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa09</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_09_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa10">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa10_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa10">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa10</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_10_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa11">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa11_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa11">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa11</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_11_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa12">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa12_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa12">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa12</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_12_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa13">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa13_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa13">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa13</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_13_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa14">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa14_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa14">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa14</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_14_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa15">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa15_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa15">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa15</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_15_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa16">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa16_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa16">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa16</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_16_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa17">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa17_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa17">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa17</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_17_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa18">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa18_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa18">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa18</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_18_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa19">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa19_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa19">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa19</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_19_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa20">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa20_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa20">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa20</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_20_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <node id="BandSelect_OLCI_Oa21">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>Oa21_reflectance</sourceBands></parameters>
  </node>
  <node id="Write_OLCI_Oa21">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OLCI_Oa21</sourceProduct></sources>
    <parameters>
      <file>${targetFolder}/r_TOA_21_x.tif</file><formatName>GeoTIFF</formatName>
    </parameters>
  </node>

  <!-- SZA has some valid data where it shouldn't. NaN it away... -->
  <node id="SZA_invalid">
    <operator>BandMaths</operator>
    <sources><sourceProducts>Reproject_OLCI</sourceProducts></sources>
    <parameters>
      <targetBands><targetBand>
          <name>sun_zenith</name><type>float32</type>
          <expression>quality_flags.invalid ? NaN : SZA</expression>
        </targetBand></targetBands>
    </parameters>
  </node>
  <node id="Write_SZA">
    <operator>Write</operator>
    <sources><sourceProduct>SZA_invalid</sourceProduct></sources>
    <parameters><file>${targetFolder}/SZA_x.tif</file><formatName>GeoTIFF</formatName></parameters>
  </node>

  <node id="BandSelect_OZA">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>OZA</sourceBands></parameters>
  </node>
  <node id="Write_OZA">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OZA</sourceProduct></sources>
    <parameters><file>${targetFolder}/OZA_x.tif</file><formatName>GeoTIFF</formatName></parameters>
  </node>

  <node id="BandSelect_SAA">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>SAA</sourceBands></parameters>
  </node>
  <node id="Write_SAA">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_SAA</sourceProduct></sources>
    <parameters><file>${targetFolder}/SAA_x.tif</file><formatName>GeoTIFF</formatName></parameters>
  </node>

  <node id="BandSelect_OAA">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>OAA</sourceBands></parameters>
  </node>
  <node id="Write_OAA">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_OAA</sourceProduct></sources>
    <parameters><file>${targetFolder}/OAA_x.tif</file><formatName>GeoTIFF</formatName></parameters>
  </node>

  <node id="BandSelect_ozone">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>total_ozone</sourceBands></parameters>
  </node>
  <node id="Write_ozone">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_ozone</sourceProduct></sources>
    <parameters><file>${targetFolder}/O3_x.tif</file><formatName>GeoTIFF</formatName></parameters>
  </node>

  <node id="BandSelect_water">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>total_columnar_water_vapour</sourceBands></parameters>
  </node>
  <node id="Write_water">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_water</sourceProduct></sources>
    <parameters><file>${targetFolder}/WV_x.tif</file><formatName>GeoTIFF</formatName></parameters>
  </node>

  <node id="BandSelect_altitude">
    <operator>BandSelect</operator>
    <sources><source>Reproject_OLCI</source></sources>
    <parameters><sourceBands>altitude</sourceBands></parameters>
  </node>
  <node id="Write_altitude">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_altitude</sourceProduct></sources>
    <parameters><file>${targetFolder}/height_x.tif</file><formatName>GeoTIFF</formatName></parameters>
  </node>

  <!--
      SLSTR Top of Atmosphere reflectances (r_TOA_SX): 1,5
      SLSTR Brightness Temperatures (BT_SX): 7,8,9
  -->

  <!--
      SLSTR operators
  -->

  <node id="Read_SLSTR">
    <operator>Read</operator>
    <parameters>
      <file>${SLSTRsource}/xfdumanifest.xml</file>
      <formatName>Sen3</formatName>
      <!-- https://forum.step.esa.int/t/error-when-selecting-multiple-bands-from-slstr-file/15319 -->
      <!-- Sen3 ensures that SLSTR is read as multisize -->
    </parameters>
  </node>

  <node id="Rad2Refl_SLSTR">
    <operator>Rad2Refl</operator>
    <sources><source>Read_SLSTR</source></sources>
    <parameters>
      <sensor>SLSTR_500m</sensor>
      <copyTiePointGrids>true</copyTiePointGrids>
      <copyFlagBandsAndMasks>true</copyFlagBandsAndMasks>
      <copyNonSpectralBands>true</copyNonSpectralBands>
    </parameters>
  </node>

  <node id="Resample_SLSTR_R">
    <operator>Resample</operator>
    <sources>
      <sourceProduct refid="Rad2Refl_SLSTR"/>
    </sources>
    <parameters>
      <referenceBand>S1_reflectance_an</referenceBand>
      <upsampling>Nearest</upsampling>
      <downsampling>First</downsampling>
      <flagDownsampling>First</flagDownsampling>
      <resampleOnPyramidLevels>true</resampleOnPyramidLevels>
    </parameters>
  </node>

  <node id="Reproject_SLSTR_R">
    <operator>Reproject</operator>
    <sources><source>Resample_SLSTR_R</source></sources>
    <parameters>
      <crs>EPSG:3413</crs>
      <resampling>Nearest</resampling>
      <noDataValue>NaN</noDataValue>
      <includeTiePointGrids>true</includeTiePointGrids>
    </parameters>
  </node>

  <node id="Resample_SLSTR_BT">
    <operator>Resample</operator>
    <sources>
      <sourceProduct refid="Read_SLSTR"/>
    </sources>
    <parameters>
      <referenceBand>S1_radiance_an</referenceBand>
      <upsampling>Nearest</upsampling>
      <downsampling>First</downsampling>
      <flagDownsampling>First</flagDownsampling>
      <resampleOnPyramidLevels>true</resampleOnPyramidLevels>
    </parameters>
  </node>

  <node id="Reproject_SLSTR_BT">
    <operator>Reproject</operator>
    <sources><source>Resample_SLSTR_BT</source></sources>
    <parameters>
      <crs>EPSG:3413</crs>
      <resampling>Nearest</resampling>
      <noDataValue>NaN</noDataValue>
      <includeTiePointGrids>true</includeTiePointGrids>
    </parameters>
  </node>

  <!--
      SLSTR bands selection and writing
  -->

  <node id="BandSelect_01">
    <operator>BandSelect</operator>
    <sources>
      <source>Reproject_SLSTR_R</source>
    </sources>
    <parameters>
      <sourceBands>S1_reflectance_an</sourceBands>
    </parameters>
  </node>

  <node id="Write_01">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_01</sourceProduct></sources>
    <parameters><file>${targetFolder}/r_TOA_S1.tif</file><formatName>GeoTIFF</formatName></parameters>
  </node>

  <node id="BandSelect_05">
    <operator>BandSelect</operator>
    <sources>
      <source>Reproject_SLSTR_R</source>
    </sources>
    <parameters>
      <sourceBands>S5_reflectance_an</sourceBands>
    </parameters>
  </node>

  <node id="Write_05">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_05</sourceProduct></sources>
    <parameters><file>${targetFolder}/r_TOA_S5.tif</file><formatName>GeoTIFF</formatName></parameters>
  </node>

  <node id="BandSelect_07">
    <operator>BandSelect</operator>
    <sources>
      <source>Reproject_SLSTR_BT</source>
    </sources>
    <parameters>
      <sourceBands>S7_BT_in</sourceBands>
    </parameters>
  </node>

  <node id="Write_07">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_07</sourceProduct></sources>
    <parameters><file>${targetFolder}/BT_S7.tif</file><formatName>GeoTIFF</formatName></parameters>
  </node>

  <node id="BandSelect_08">
    <operator>BandSelect</operator>
    <sources>
      <source>Reproject_SLSTR_BT</source>
    </sources>
    <parameters>
      <sourceBands>S8_BT_in</sourceBands>
    </parameters>
  </node>

  <node id="Write_08">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_08</sourceProduct></sources>
    <parameters><file>${targetFolder}/BT_S8.tif</file><formatName>GeoTIFF</formatName></parameters>
  </node>

  <node id="BandSelect_09">
    <operator>BandSelect</operator>
    <sources>
      <source>Reproject_SLSTR_BT</source>
    </sources>
    <parameters>
      <sourceBands>S9_BT_in</sourceBands>
    </parameters>
  </node>

  <node id="Write_09">
    <operator>Write</operator>
    <sources><sourceProduct>BandSelect_09</sourceProduct></sources>
    <parameters><file>${targetFolder}/BT_S9.tif</file><formatName>GeoTIFF</formatName></parameters>
  </node>

</graph>