Adding MEDUSA to XIOS files

field_def.xml

To me, it looks like Julien has removed all the Biogeochemistry fields from the GO6 package version of this file to create his version, field_def_dyn.xml, and moved them into field_def_bgc.xml.

I'd like to use the GO6 package version of field_def.xml and only have the extra fields needed in field_def_bgc.xml. To this end I've created /home/h06/mstringe/fcm/medusa/xios/field_def_bgc.xml.

iodef.xml

I need to change code, so we have

    ⟨field_definition src="./field_def_bgc.xml"/⟩
    ⟨field_definition src="./field_def.xml"/⟩

and add

        ⟨file id="file11" name_suffix="_ptrc_T" description="Medusa sms variables" ⟩
          ⟨field_group group_ref="groupMEDUSA" /⟩
          ⟨field_group group_ref="groupIDTRA" /⟩
          ⟨field_group group_ref="groupCFC" /⟩
          ⟨field_group group_ref="groupAGE" /⟩
        ⟨/file⟩

        ⟨file id="file12" name_suffix="_diad_T" description="Medusa diagnostic variables" ⟩
          ⟨field_group group_ref="groupMEDUSA_dia" /⟩
          ⟨field_group group_ref="groupMEDUSA_3dd" /⟩
          ⟨field_group group_ref="groupMEDUSA_dms" /⟩
          ⟨field_group group_ref="groupIDTRA_dia" /⟩
          ⟨field_group group_ref="groupCFC_dia" /⟩
          ⟨field_group group_ref="groupMEDUSA_cmip6" /⟩
        ⟨/file⟩

just before the line `⟨/file_group⟩', where the file numbers should follow on from the previous file number.