Assimilation of OC-CCI data for parameter estimation in the coupled ocean biogeochemical model MITgcm-REcoM


Contact
himansu.kesari.pradhan [ at ] awi.de

Abstract

MITgcm-REcoM is used to simulate biogeochemistry in a global ocean configuration. The Regulated Ecosystem Model REcoM simulates biogeochemical processes using two phytoplankton groups (small phytoplanktons and diatoms) in a quota-formulation using separate variables for carbon and chlorophyll. The model has been shown to produce realistic phytoplankton carbon concentrations with spatially constant parameters controlling the processes. To further improve the model representation we plan to estimate spatially varying parameters so that the biogeochemical processes can adapt to regional environmental conditions. The parameter estimation will be performed by assimilating ocean color data from OC-CCI using an ensemble filter provided by the Parallel Data Assimilation Framework (PDAF). We discuss the performance of the global model configuration with fixed parameters as well as data assimilation component and plans for the parameter estimation.



Item Type
Conference (Poster)
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Peer revision
Not peer-reviewed
Publication Status
Published
Event Details
Colour and Light in the Ocean from Earth Observation (CLEO), 06 Sep 2016 - 08 Sep 2016, ESA Centre for Earth Observation (ESRIN), Frascati, Italy.
Eprint ID
41783
Cite as
Pradhan, H. K. , Völker, C. , Losa, S. N. and Nerger, L. (2016): Assimilation of OC-CCI data for parameter estimation in the coupled ocean biogeochemical model MITgcm-REcoM , Colour and Light in the Ocean from Earth Observation (CLEO), ESA Centre for Earth Observation (ESRIN), Frascati, Italy, 6 September 2016 - 8 September 2016 .


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