World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Estimation of Positive Sum-to-one Constrained Zooplankton Grazing Preferences with the Denkf: a Twin Experiment : Volume 8, Issue 4 (08/08/2012)

By Simon, E.

Click here to view

Book Id: WPLBN0004020597
Format Type: PDF Article :
File Size: Pages 16
Reproduction Date: 2015

Title: Estimation of Positive Sum-to-one Constrained Zooplankton Grazing Preferences with the Denkf: a Twin Experiment : Volume 8, Issue 4 (08/08/2012)  
Author: Simon, E.
Volume: Vol. 8, Issue 4
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2012
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Bertino, L., Dumont, D., Samuelsen, A., & Simon, E. (2012). Estimation of Positive Sum-to-one Constrained Zooplankton Grazing Preferences with the Denkf: a Twin Experiment : Volume 8, Issue 4 (08/08/2012). Retrieved from http://worldebookfair.org/


Description
Description: Nansen Environmental and Remote Sensing Center, Norway. We consider the estimation of the grazing preferences parameters of zooplankton in ocean ecosystem models with ensemble-based Kalman filters. These parameters are introduced to model the relative diet composition of zooplankton that consists of phytoplankton, small size-classes of zooplankton and detritus. They are positive values and their sum is equal to one. However, the sum-to-one constraint cannot be guaranteed by ensemble-based Kalman filters when parameters are bounded. Therefore, a reformulation of the parameterization is proposed. We investigate two types of variable transformations for the estimation of positive sum-to-one constrained parameters that lead to the estimation of a new set of parameters with normal or bounded distributions. These transformations are illustrated and discussed with twin experiments performed with the 1-D coupled model GOTM-NORWECOM with Gaussian anamorphosis extensions of the deterministic ensemble Kalman filter (DEnKF).

Summary
Estimation of positive sum-to-one constrained zooplankton grazing preferences with the DEnKF: a twin experiment

Excerpt
Anderson, J. L.: An ensemble adjustment Kalman filter for data assimilation, Month. Weath. Rev., 129, 2884–2903, 2001.; Bertino, L., Evensen, G., and Wackernagel, H.: Sequential D}ata {A}ssimilation {T}echniques in {O}ceanography, {International Statistical Review, 71, 223–241, 2003.; Aksnes, D., Ulvestad, K., Bali{ñ}o, B., Berntsen, J., and Svendsen, E. : Ecological modelling in coastal waters: towards predictive physical-chemical-biological simulation models, Ophelia, 41, 5–36, 1995.; Bertino, L. and Lisæter, K. A.: The TOPAZ monitoring and prediction system for the Atlantic and Arctic Oceans, J. Operat. Oceanogr., 1, 15–19, 2008.; Buitenhuis, E., Le Quéré, C., Aumont, O., Beaugrand, G., Bunker, A., Hirst, A., Ikeda, T., O'Brien, T., Piontkovski, S., and Straile, D.: Biogeochemical fluxes through mesozooplankton, Global Biogeochem. Cy., 20, GB2003, doi:10.1029/2005GB002511, 2006.; Buitenhuis, E. T., Rivkin, R. B., Sailley, S., and Le Quéré, C.: Biogeochemical fluxes through microzooplankton, Global Biogeochem. Cy., 24, GB4015, doi:10.1029/2009GB003601, 2010.; Burchard, H., Bolding, K., and Villareal, M. R.: GOTM, a general ocean turbulence model: theory, implementation and test cases, European Commission Technical Report, Brussels, 1999.; Burchard, H., Deleersnijder, E., and Meister, A.: Application of modified Patankar schemes to stiff biogeochemical models for the water column, Ocean Dynam., 55, 326–337, 2005.; Campbell, J. W.: The lognormal distribution as a model for bio-optical variability in the sea, J. Geophys. Res., 100, 13237–13254, 1995.; P{ä}tsch, J., K{ü}hn, W., Moll, A., and Lenhart, H.: ECOHAM}4 user guide, { Technical Report 1-2009, {I}nstitut für {M}eereskunde, Hamburg, Germany, 2009.; Doron, M., Brasseur, P., and Brankart, J.-M.: Stochastic estimation of biogeochemical parameters of a 3D ocean coupled physical-biogeochemical model: twin experiments, J. Mar. Syst., 87, 3–4, 2011.; Evans, G. T. and Parslow, J. S.: A model of annual plankton cycles, Biol. Oceanogr., 3, 327–347, 1985.; Evensen, G.: Sequential data assimilation with a nonlinear quasi-geostrophic model using M}onte {C}arlo methods to forecast error statistics, {J. Geophys. Res., 99, 10143–10182, 1994.; Evensen, G.: The E}nsemble {K}alman filter: theorotical formulation and practical implementation, {Ocean Dynam., 53, 343–367, 2003.; Evensen, G.: The E}nsemble {K}alman filter for combined state and parameter estimation, {IEEE Control Systems Magazine, 29, 83–104, 2009.; Gelman A.: Method of Moments Using Monte Carlo Simulation, J. Comput. Graph. Stat., 4, 36–54, 1995.; Gelman, A., Bois, F., and Jiang, J.: Physiological Pharmacokinetic Analysis Using Population Modeling and Informative Prior Distributions, J. Am. Stat. Assoc., 91, 1400–1412, 1996.; Gentleman, W., Leising, A., Frost, B., Strom, S., and Murray J.: Functional responses for zooplankton feeding on multiple resources: a review of assumptions and biological dynamics, Deep Sea Res. Pt. II, 50, 2847–2875, 2003.; Gregg, W. W. and Casey, N. W.: Global and regional evaluation of the S}ea{W}i{FS chlorophyll data set, Remote Sens. Environ., 93, 463–479, 2004.; Lauvernet, L., Brankart, J.-M., Castruccio, F., Broquet, G., Brasseur, P., and Verron, J.: A truncated G}aussian filter for data assimilation with inequality constraints: {A}pplication to the hydrostatic stability condition in ocean models, {Ocean Modell., 27, 1–17, 2009.; Nurmela, K. J.: Constructing spherical codes by global optimization methods, Research Report 32, Helsinki University of Technology, Finland, 1995.; Sakov, P. and Oke, P. R.: A deterministic formulation of the ensemble Kalman filter: an alternative to ensemble square root filter, Tellus, 60A, 361–371, 2008.; Sakov, P., Evensen, G., and Bertino, L.: Asynchronous data assimilation with the EnKF, Tellus, 62A, 24–29, 2010.; Simon, E. and Bert

 

Click To View

Additional Books


  • Tidal Modulation of Two-layer Hydraulic ... (by )
  • Thermodynamic Properties of Standard Sea... (by )
  • Influence of Frontal Cyclone Evolution o... (by )
  • The Link Between the Barents Sea and Ens... (by )
  • Enhancing the Accuracy of Automatic Eddy... (by )
  • The M3A Multi-sensor Buoy Network of the... (by )
  • Decadal Variability of Heat Content in S... (by )
  • An Empirical Stochastic Model of Sea-sur... (by )
  • Scale Oriented Embedded Modeling of the ... (by )
  • Numerical Implementation and Oceanograph... (by )
  • The Low-resolution Ccsm2 Revisited: New ... (by )
  • Distribution of Overwintering Calanus in... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Fair are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.