Ticket #940 (assigned Task)

Opened 7 years ago

Last modified 7 years ago

New simulation relationship required

Reported by: charlotte Owned by: gerry
Priority: blocker Milestone: V1.2 Questionnaire release
Component: WP6 - CMIP5 Questionnaire Version: 1.1
Keywords: simulation relationship Cc: allyn mark sylvia
Requirement: http://metaforclimate.eu/Work-Package-2/Developing-the-CIM/Project-Requirements-summary.htm


I would like to add a new simulation relationship:  isEnsembleAbout

CMIP5 specifies a set of core experiments that modelling must do their best to complete and then tiers of experiments for centres to perform if computational time allows.

Often the tiers include extra ensemble members for simulations that have already been performed (and the data already delivered). The extra ensemble runs are noted with -E extensions in the CMIP5 expeiment design but are given the same experiment name in the DRS world view (and the same name in the questionnaire output).

I would like a user returning to the questionnaire to be able to say that the simulation (ensemble) they are describing is an ensemble about a simulation they have already described.

Change History

comment:1 Changed 7 years ago by charlotte

  • Owner changed from gerry to charlotte
  • Status changed from new to assigned


Yes you need this extension as we are no longer following the experiment plan in terms of referencing.

I don't think "isEnsembleAbout" is the right word  -   "isEnsembleExtensionOf" is closer to what is actually being done (but I'm still not entirely happy with it).

One of the things that often changes for the extending ensemble members is that we lose the high frequency diagnostics and even the number of diagnostics delivered.  I don't think we collect this information directly, but I think we need to encourage people to spell out in the text descriptions how they differ from the 'main' run. 



comment:2 Changed 7 years ago by charlotte

  • Owner changed from charlotte to gerry
  • Status changed from assigned to new

how about "expandsEnsembleOf"

comment:3 Changed 7 years ago by gerry

  • Status changed from new to assigned

Hi, did we get any resolution of this? I think Mark's "isEnsembleExtensionOf" is pretty close? I can make this change easily in the qn upon agreement of a suitable term. I'll keep the ticket open however until we have a good message to the user in place asking them to give us good information on what is different between original simulation run and this extended exnsemble run.

comment:4 Changed 7 years ago by charlotte

Then we should go with "isEnsembleExtensionOf" 

Text for users:

The "isEnsembleExtensionOf" relationship is intended to be used for describing the simulations associated with ensemble extension (-E) experiments.

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