SSTICE_DATA_FILENAME does not allow for multiple sst data files

[jedwards4b]

The fortran allows for multiple files in variable stream_fldfilename however there is currently no way to
set more than one file without modifying the code.

[dabail10]

Do we need to fix this in CICE5? Mariana is working on the new prescribed ice with CDEPS for CICE6.

[jedwards4b]

I opened it in cice5 because a user is trying to read in multiple sst data files in cesm2.1.3 - I will submit a PR to fix it.

[jedwards4b]

After looking into this problem we have found that it would not be easy to address. The workaround is to make changes in your source as follows:
edit the file components/cice/cime_config/namelist_definition_cice.xml
and make the following change:

@@ -1877,8 +1877,8 @@
     </values>
   </entry>
 
-  <entry id="stream_fldfilename" modify_via_xml="SSTICE_DATA_FILENAME">
-    <type>char</type>
+  <entry id="stream_fldfilename">
+    <type>char(400)</type>
     <category>icepresc</category>

Then list your files in user_nl_cice:

stream_fldfilename =filename1, filename2, filename3, ...

[dabail10]

I guess I don't understand what code changes are needed? The variable stream_fldfilename is already a character string array in ice_prescribed_mod.F90. This is CICE5. I haven't looked at CICE6 yet.

[dabail10]

Does the XML string SSTICE_DATA_FILENAME take a character string of arrays? Also, do you only want 10 files possible? The fortran code allows for 400.

[dabail10]

Nevermind. I just read the title. :)

[jedwards4b]

Updated the comment to reflect the possibility of 400 files.

[dabail10]

So, do you want to change CESM_CICE5 or just have the workaround available?