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| Titel |
Evaluation of simulated ocean carbon in the CMIP5 earth system models |
| VerfasserIn |
James Orr, Patrick Brockmann, Roland Séférian, Jerome Servonnat, Laurent Bopp |
| Konferenz |
EGU General Assembly 2013
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250084091
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| Zusammenfassung |
| We maintain a centralized model output archive containing output from the previous
generation of Earth System Models (ESMs), 7 models used in the IPCC AR4 assessment.
Output is in a common format located on a centralized server and is publicly available
through a web interface. Through the same interface, LSCE/IPSL has also made available
output from the Coupled Model Intercomparison Project (CMIP5), the foundation for the
ongoing IPCC AR5 assessment. The latter includes ocean biogeochemical fields from more
than 13 ESMs. Modeling partners across 3 EU projects refer to the combined AR4-AR5
archive and comparison as OCMIP5, building on previous phases of OCMIP (Ocean Carbon
Cycle Intercomparison Project) and making a clear link to IPCC AR5 (CMIP5). While now
focusing on assessing the latest generation of results (AR5, CMIP5), this effort is
also able to put them in context (AR4). For model comparison and evaluation, we
have also stored computed derived variables (e.g., those needed to assess ocean
acidification) and key fields regridded to a common 1°x1° grid, thus complementing the
standard CMIP5 archive. The combined AR4-AR5 output (OCMIP5) has been used to
compute standard quantitative metrics, both global and regional, and those have been
synthesized with summary diagrams. In addition, for key biogeochemical fields we
have deconvolved spatiotemporal components of the mean square error in order to
constrain which models go wrong where. Here we will detail results from these
evaluations which have exploited gridded climatological data. The archive, interface, and
centralized evaluation provide a solid technical foundation, upon which collaboration
and communication is being broadened in the ocean biogeochemical modeling
community. Ultimately we aim to encourage wider use of the OCMIP5 archive. |
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