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<font face="Times New Roman">Hi Gary,<br>
<br>
To be sure, the experiment_id for the CCCMA dataset shown below
was (if correct) "historicalMisc". When they published it, they
chose to name the experiment "volcanic aerosol". This is
informational but is not used by the ESG search engines or in any
other automatic processing that I know of. (I thought whoever was
publishing would just put in experiment="historicalMisc", so it
would be consistent with the experiment_id global attribute.)<br>
<br>
I don't think we've provided much guidance about this (outside the
DRS document), but for each different combination of forcings in
the historicalMisc runs, you should assign a different
"physics_version" number (i.e., the "p" in the ensemble
identifier, which in the example below is "p3"). You should also
record in the global "forcing" attribute in the netCDF file each
of the forcings included in each of your historical(Misc) runs.
If you do an ensemble of runs with the same forcing, they should
all have the same "p" value and be distinguished by the "r"
values. The standard abbreviations for each forcing are provided
in the last appendix of the DRS document and also can be found at
<a class="moz-txt-link-freetext" href="http://cmip-pcmdi.llnl.gov/cmip5/docs/cmip5_data_reference_Appendix1-2.pdf">http://cmip-pcmdi.llnl.gov/cmip5/docs/cmip5_data_reference_Appendix1-2.pdf</a>
[Note that the output_requirements, available at </font><font
face="Times New Roman"><a class="moz-txt-link-freetext" href="http://cmip-pcmdi.llnl.gov/cmip5/docs/CMIP5_output_metadata_requirements.pdf">http://cmip-pcmdi.llnl.gov/cmip5/docs/CMIP5_output_metadata_requirements.pdf</a></font><font
face="Times New Roman"> , describes the "forcing" attribute.]<br>
<br>
I would like to put together a table that provides a key showing
which forcings are included for each model and for each value of
"p"; I just haven't gotten to this yet.<br>
<br>
Please let me know if you can think of any way to make this
clearer to everyone.<br>
<br>
Best regards,<br>
Karl<br>
<br>
<br>
</font><br>
On 2/16/12 7:31 AM, Gary Strand wrote:
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At what point (publishing?) does one of an "historicalMisc"
experiment (as defined and required by the CMIP5 tables) get
displayed as:<br>
<br>
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<br>
I would like our (NCAR) "historicalMisc" datasets have a bit
more information available than just the standard (as
described in the DRS document) "historical simulation but
with other individual forcing agents or combinations of
forcings."<br>
<br>
We have a whole slew of variations that are not readily
distinguishable (and less likely usable) by the above
generic description.<br>
<br>
Thanks!<br>
<br>
Gary Strand<br>
<a class="moz-txt-link-abbreviated" href="mailto:strandwg@ucar.edu">strandwg@ucar.edu</a><br>
<br>
<br>
<br>
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