[en] The Singular Evolutive Extended Kalman (SEEK) filter has been implemented to assimilate in-situ data in a 1D coupled physical-ecosystem model of the Ligurian Sea. The biogeochemical model describes the partly decoupled nitrogen and carbon cycles of the pelagic food web. The GHER hydrodynamic model (1D version) is used to represent the physical forcings. The data assimilation scheme (SEEK filter) parameterizes the error statistics by means of a set of empirical orthogonal functions (EOFs). Twin experiments are first performed with the aim to choose the suitable experimental protocol (observation and estimation vectors, number of EOFs, frequency of the assimilation,...) and to assess the SEEK filter performances. This protocol is then applied to perform real data assimilation experiments using the DYFAMED data base. By assimilating phytoplankton observations, the method has allowed to improve not only the representation of the phytoplankton community, but also of other variables such as zooplankton and bacteria that evolve with model dynamics and that are not corrected by the data assimilation scheme. The validation of the assimilation method and the improvement of model results are studied by means of suitable error measurements. (c) 2006 Elsevier B.V. All rights reserved.
Research Center/Unit :
MARE - Centre Interfacultaire de Recherches en Océanologie - ULiège
Raick, Caroline ; Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Océanologie
Alvera Azcarate, Aïda ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > GeoHydrodynamics and Environment Research (GHER)
Barth, Alexander ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Océanographie physique
Brankart, J. M.
Soetaert, K.
Grégoire, Marilaure ; Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Océanologie
Language :
English
Title :
Application of a SEEK filter to a 1D biogeochemical model of the Ligurian Sea: Twin experiments and real in-situ data assimilation
scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.
Bibliography
Ballabera-Poy, J., 1998. Assimilation de données avec un filtre de Kalman évolutif de rang réduit dans un modèle aux Equations Primitives. Phd thesis, Université Joseph Fourier-Grenoble 1.
Bethoux J.P., Morin P., Chaumery C., Connan O., Gentili B., and Ruiz-Pino D.P. Nutrients in the Mediterranean Sea, mass balance and statistical analysis of concentrations with respect to environmental change. Marine Chemistry 63 1-2 (1998) 155-169
Bethoux J.P., Morin P., and Ruiz-Pino D.P. Temporal trends in nutrients ratios: chemical evidence of Mediterranean ecosystem changes driven by human activity. Deep-Sea Research II 49 (2002) 2007-2016
Brasseur P., Ballabrera-Poy J., and Verron J. Assimilation of altimetric data in the mid-latitude oceans using the Singular Evolutive Extended Kalman filter with an eddy-resolving primitive equation model. Journal of Marine Systems 22 (1999) 269-294
Carmillet V., Brankart J.-M., Drange H., Evensen G., and Verron J. A singular evolutive extended Kalman filter to assimilate ocean color data in a coupled physical-biochemical model of the North Atlantic ocean. Ocean Modelling 3 (2001) 167-192
Dee D.P., and Silva A.M. Data assimilation in the presence of forecast bias. Quart. Journal of research Meteorological Society 124 (1998) 269-295
Dee D.P., and Todling R. Data assimilation in the presence of forecast bias: the GEOS moisture analysis. Monthly Weather Reviews 128 9 (2000) 3268-3282
Delhez E.J.M., Gregoire M., Nihoul J.C.J., and Beckers J.-M. Dissection of the GHER turbulence closure scheme. Journal of Marine Systems 21 (1999) 379-397
Evensen G. Using the extended Kalman filter with a multilayer quasi-geostrophic ocean model. Journal of Geophysical Research 97 C11 (1992) 17905-17924
Faugeras B., Lévy M., Mémery L., Verron J., Blum J., and Charpentier I. Can biogeochemical fluxes be recovered from nitrate and chlorophyll data? A case study assimilating data in the Northwestern Mediterranean Sea at the JGOFS-DYFAMED station. Journal of Marine Systems 40-41 (2003) 99-125
Gelb A. Applied Optimal Estimation (1974), MIT Press, Cambridge, MA 374 pp.
Hoteit I., and Pham D.-T. An adaptively reduced-order extended Kalman filter for data assimilation in the tropical Pacific. Journal of Marine Systems 45 (2004) 173-188
Hoteit I., Pham D.-T., and Blum J. A simplified reduced order Kalman filtering and application to altimetric data assimilation in Tropical Pacific. Journal of Marine Systems 36 (2002) 101-127
Hoteit I., Triantafyllou G., Petihakis G., and Allen J.I. A singular evolutive extended Kalman filter to assimilate real in situ data in 1-D marine ecosystem model. Annales Geophysicae 21 (2003) 389-397
Hoteit I., Triantafyllou G., and Petihakis G. Towards a data assimilation system for the Cretan Sea ecosystem using a simplified Kalman filter. Journal of Marine Systems 45 (2004) 145-171
Ide K., Benett A., Courtier P., Ghil M., and Lorenc A. Unified notation for data assimilation: operational, sequential and variational. Journal of Meteorological Society of Japan 75 (1997) 181-189
Jazwinski A.H. Stochastic Processes and Filtering Theory (1970), Academic Press 376 pp.
Kalman R.E. A new approach to linear filtering and prediction problems. Transactions of the ASME-Journal of Basic Engineering 82 (1960) 13-45
Kasibhatla P., Heimann M., Rayner P., Mahowald N., Prinn R.G., and Hartley D.E. Inverse Methods in Global Biogeochemical Cycles (2000), American Geophysical Union
Kriest I., and Evans G.T. 1D vertically resolved model for phytoplankton aggregation. Earth and Planetary Sciences 109 4 (2000) 453-459
Lacroix G., and Grégoire M. Revisited ecosystem model (MODECOGeL) of the Ligurian Sea: seasonal and interannual variability due to atmospheric forcing. Journal of Marine Systems 37 4 (2002) 229-258
Lacroix G., and Nival P. Influence of meteorological variability on primary production dynamics in the Ligurian Sea (NW Mediterranean Sea) with a hydrodynamic/biological model. Journal of Marine Systems 16 (1998) 23-50
Magri, S., 2002. Assimilation de données dans un modèle d'écosystème marin couplé à un modéle de la couche de mélange acéanique de la mer Ligure. Phd thesis, Université Joseph Fourier-Grenoble 1.
Marty J.-C. The DYFAMED time-series program (French-JGOFS). Deep-Sea Research II 49 (2002) 1963-1964
Marty J.-C., and Chiaverini J. Seasonal and interannual variations in phytoplankton production at DYFAMED time-series station, northwestern Mediterranean Sea. Deep-Sea Research II 49 (2002) 2017-2030
Marty J.-C., Chiaverini J., Pizay M.-D., and Avril B. Seasonal and interannual dynamics of nutrients and phytoplankton pigments in the western Mediterranean Sea at DYFAMED time-series station (1991-1999). Deep Sea Research II 49 (2002) 1965-1985
Mémery L., Lévy M., Vérant S., and Merlivat L. The relevant time scales in estimating the air sea CO2 exchange in a mid latitude region. Deep Sea Research II 49 11 (2002) 2067-2092
Nihoul J.C.J., and Djenidi S. Perspectives in three dimensional modelling of the marine system. In: Nihoul J.C.J., and Jaymart B.M. (Eds). Three dimensional Models of Marine and Estuarine dynamics (1987), Elsevier, Amsterdam 1-34
Parent L., Testut C.E., Brankart J.M., Verron J., Brasseur P., and Gourdeau L. Comparative assimilation of Topex/Poseidon and ERS altimeter data of TAO temperature data in the tropical Pacific ocean during 1994-1998, and the mean sea-surface height issue. Journal of Marine Systems 40-41 (2003) 381-401
Pham D.T., Verron J., and Gourdeau L. Singular Evolutive Kalman filters for data assimilation in oceanography. Earth and Planetary Sciences 326 (1998) 255-260
Pham D.T., Verron J., and Roubaud M.-C. A Singular Evolutive Kalman filter for data assimilation in oceanography. Journal of Marine Systems 16 3-4 (1998) 323-340
Raick C., Delhez E.J.M., Soetaert K., and Gregoire M. Study of the seasonal cycle of the biogeochemical process in the Ligurian Sea using an 1D interdisciplinary model. Journal of Marine Systems 55 3-4 (2005) 177-203
Soetaert K., deClippere V., and Herman P.M.J. Femme, a flexible environment for mathematically modelling the environment. Ecological modelling 151 (2002) 177-193
Tamburini C., Garcin J., Ragot M., and Bianchi A. Biopolymer hydrolysis and bacterial production under ambient hydrostatic pressure through a 2000m water column in the NW Mediterranean. Deep-Sea Research II 49 (2002) 2093-2107
Tanaka T., and Rassoulzadegan F. Full-depth profile (0-2000 m) of bacteria, heterophic nanoflagellates and ciliates in the NW Mediterranean sea: Vertical partitioning of microbial trophic structures. Deep-Sea Research II 49 (2002) 2093-2107
Taylor K.E. Summarizing multiple aspects of model performance in a single diagram. Journal of Geophysical Research 106 (2001) 7186-7192
Testut C.-E., Brasseur P., Brankart J.-M., and Verron J. Assimilation of sea-surface temperature and altimetric observations during 1992-1993 into an eddy permitting primitive equation model of the North Atlantic Ocean. Journal of Marine Systems 40-41 (2003) 291-316
Triantafyllou G., Hoteit I., and Petihakis G. A singular evolutive interpolated Kalman filter for efficient data assimilation in a 3-D complex physical-biogeochemical model of the Cretan Sea. Journal of Marine Systems 40-41 (2003) 213-231
Verron J., Gourdeau L., Pham D.T., Murtugudde R., and Busalacchi A.J. An extended Kalman filter to assimilate satellite altimeter data into a nonlinear numerical model of the tropical Pacific Ocean: method and validation. Journal of Geophysical Research 104 (1999) 5441-5458
Vidussi F., Claustre H., Manca B.B., Luchetta A., Marty J.-C., and Chiaverini J. Phytoplankton pigment distribution in relation to upper thermocline circulation in the eastern Mediterranean Sea during winter. Journal of Geophysical Research 106 C9 (2001) 19,939-19,956
Vidussi F., Marty J.-C., and Chiaverini J. Phytoplankton pigment variations during the transition from spring bloom to oligotrophy in the northwestern Mediterranean Sea. Deep-Sea Research I 47 (2000) 423-445
Similar publications
Sorry the service is unavailable at the moment. Please try again later.
This website uses cookies to improve user experience. Read more
Save & Close
Accept all
Decline all
Show detailsHide details
Cookie declaration
About cookies
Strictly necessary
Performance
Strictly necessary cookies allow core website functionality such as user login and account management. The website cannot be used properly without strictly necessary cookies.
This cookie is used by Cookie-Script.com service to remember visitor cookie consent preferences. It is necessary for Cookie-Script.com cookie banner to work properly.
Performance cookies are used to see how visitors use the website, eg. analytics cookies. Those cookies cannot be used to directly identify a certain visitor.
Used to store the attribution information, the referrer initially used to visit the website
Cookies are small text files that are placed on your computer by websites that you visit. Websites use cookies to help users navigate efficiently and perform certain functions. Cookies that are required for the website to operate properly are allowed to be set without your permission. All other cookies need to be approved before they can be set in the browser.
You can change your consent to cookie usage at any time on our Privacy Policy page.
