The BETHY/JSBACH Carbon Cycle Data Assimilation System: experiences and challenges

We present the concept of the Carbon Cycle Data Assimilation System and describe its evolution over the last two decades from an assimilation system around a simple diagnostic model of the terrestrial biosphere to a system for the calibration and initialization of the land component of a comprehensive earth system model. We critically review the capability of this modeling framework to integrate multiple data streams, to assess their mutual consistency and with the model, to reduce uncertainties in the simulation of the terrestrial carbon cycle, to provide, in a traceable manner, reanalysis products with documented uncertainty, and to assist the design of the observational network. We highlight some of the challenges we met and experience we gained and suggest directions for future development.

KAMINSKI Thomas;  KNORR Wolfgang;  SCHURMANN G.;  SCHOLZE M.;  RAYNER P.;  ZAEHLE Sonke;  BLESSING S.;  DORIGO W.;  GAYLER V.;  GIERING Ralf;  GOBRON Nadine;  GRANT J.;  HEIMANN Martin;  HOOKER-STROUT A.;  HOUWELING S.;  KATO T.;  KATTGE J.;  KELLEY D.;  KEMP S.;  KOFFI N'Dri;  KOSTLER C.;  MATHIEU Pierre Philippe;  PINTY Bernard;  REICK C.;  RODENBECK C.;  SCHNUR Reiner;  SCIPAL K.;  SEBALD C.;  STACKE T;  TERWISSCHA VAN SCHELTINGA A.;  VOSSBECK Michael;  WIDMANN H.;  ZIEHN T.; 

2014-01-27

AMER GEOPHYSICAL UNION

JRC84968

0148-0227,   

http://onlinelibrary.wiley.com/doi/10.1002/jgrg.20118/abstract,    https://publications.jrc.ec.europa.eu/repository/handle/JRC84968,   

10.1002/jgrg.20118,