Geo table

The geo table document defines the location related variables used.

An example of the document contents is given below, for a comprehensive description of all the possible content options see the schema document. Data continuation and abbreviated content expressed as …:

The root level tag contains a reference to the schema document which is used to validate the content of the XML document:

<geo_tables xmlns="http://www.simo-project.org/simo"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://www.simo-project.org/simo ../schemas/geo_table.xsd">

A basic geo table named “dem”:

…
   <geo_table name="dem" desc="Digital elevation model">
      <filename>dem.latlonarray</filename>
      <ulx>20.0041666667</ulx>
      <uly>70.0958333333</uly>
      <nrow>1245</nrow>
      <ncol>1394</ncol>
      <xdim>0.00833333333333</xdim>
      <ydim>0.00833333333333</ydim>
      <nvar>1</nvar>

The coordinate attributes GEO_X and GEO_Y from comp_unit level are used as input of the geo table model:

…
      <coordinate_variables>
         <longitude>
            <variable>GEO_X</variable>
            <level>comp_unit</level>
         </longitude>
         <latitude>
            <variable>GEO_Y</variable>
            <level>comp_unit</level>
         </latitude>
      </coordinate_variables>

The result of the model is the value of ALT attribute in comp_unit level:

…
      <targets>
         <target>
            <variable>ALT</variable>
            <level>comp_unit</level>
         </target>
      </targets>
   </geo_table>
…
</geo_tables>