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Eksporter 132 resultater:

Filtre: Forfatter er Evensen, Geir [Slett Alle Filtre]

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Winther, N. & Evensen, G. A hybrid coordinate ocean model for shelf sea simulation. Ocean Modelling 13, 221-237 (2006).

Last ned: win06a.pdf (1.44 MB)

Winther, N., Morel, Y.G. & Evensen, G. Efficiency of high order numerical schemes for momentum advection. Journal of Marine Systems 67, 31-46 (2007).

Last ned: win07a.pdf (2.55 MB)

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Thorkildsen, F., David, S. & Evensen, G. A Granular Sea-Ice Model. (1997).

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Stordal, A.S., Moraes, R.J., Raanes, P.N. & Evensen, G. p-Kernel Stein Variational Gradient Descent for Data Assimilation and History Matching. Mathematical Geosciences 53, (2021). Abstract

Soares, R., Luo, X., Evensen, G. & Bhakta, T. 4D seismic history matching: Assessing the use of a dictionary learning based sparse representation method. Journal of Petroleum Science and Engineering 195, (2020). Abstract

Soares, R.V., Luo, X. & Evensen, G. Sparse Representation of 4D Seismic Signal Based on Dictionary Learning. SPE Norway One Day (2019).doi:10.2118/195599-MS

Soares, R., Luo, X., Evensen, G. & Bhakta, T. Handling Big Models and Big Data Sets in History-Matching Problems through an Adaptive Local Analysis Scheme. SPE Journal 26, (2021). Abstract

Skjervheim, J.-A., Evensen, G., Aanonsen, S.I., Ruud, B.O. & Johansen, T.A. Incorporating 4D seismic data in reservoir simulation models using ensemble Kalman filter. SPE 95789. (2005).på <http://www.spe.org>

Seiler, A., Evensen, G., Skjervheim, J.-A., Hove, J. & Vabø, J.G. Advanced reservoir management workflow using an EnKF based assisted history matching method. The 2009 SPE Reservoir Simulation Symposium, 65533 (2009). Abstract

Seiler, A., Rivenæs, J.C., Aanonsen, S.I. & Evensen, G. Structural Uncertainty modelling and updating by production data integration. 2009 SPE/EAGE Reservoir Characterization and Simulation Conference (2009).

Seiler, A. Reservoir structural model updating using the Ensemble Kalman Filter. Doctoral Thesis No. 87 (2010).

Seiler, A., Aanonsen, S.I., Evensen, G. & Rivenæs, J.C. Structural Surface Uncertainty Modeling and Updating Using the Ensemble Kalman Filter. SPE/EAGE Reservoir Characterization and Simulation Conference (2010).

Seiler, A., Evensen, G., Skjervheim, J.-A., Hove, J. & Vabø, J.G. Using the EnKF for history matching and uncertainty quantification of complex reservoir models. Computational Methods for Large-Scale Inverse Problems and Quantification of Uncertainty (2009).

Seiler, A., Aanonsen, S.I., Evensen, G. & Rivenæs, J.C. Structural Surface Uncertainty Modeling and Updating Using the Ensemble Kalman Filter. SPE Journal 15, (2010).

Last ned: Structural Surface Uncertainty Modeling and Updating Using the Ensemble Kalman Filter.pdf (1.32 MB)

Sandven, S., mfl. The quantification of the importance of the sea ice budget in the climate system Final report. (2001).

Sakov, P., Evensen, G. & Bertino, L. Asynchronous data assimilation with the EnKF. Tellus A 62A, (2010). Abstract

Last ned: Asynchronous data assimilation with the EnKF.pdf (107.25 KB)

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Raanes, P.N., Stordal, A.S. & Evensen, G. Revising the stochastic iterative ensemble smoother. Nonlinear processes in geophysics 26, (2019).

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Neto, G.M.S., Soares, R., Evensen, G., Davolio, A. & Schiozer, D.J. Subspace Ensemble Randomized Maximum Likelihood with Local Analysis for Time-Lapse-Seismic-Data Assimilation. SPE Journal 26, (2021). Abstract

Natvik, L.-J., Eknes, M. & Evensen, G. A Weak Constraint Inverse for a Zero Dimensional Four Component Marine Ecosystem Model. (1998).

Natvik, L.-J. A data assimilation system for a 3-dimensional biochemical model of the North Atlantic. Doctoral Thesis No. 39 (2001).

Natvik, L.-J. & Evensen, G. Assimilation of ocean colour data into a biochemical model of the North Atlantic. Part 2. Statistical analysis. journal of Marine Systems 155-169 (2003).

Natvik, L.-J. & Evensen, G. Assimilating SeaWiFS ocean color data into a three-dimensional marine ecosystem model: Application to the North Atlantic and the Nordic Seas. Backscatter - Ocean Color Spectrum 27 (2001).

Natvik, L.-J. & Evensen, G. Assimilation of ocean colour data into a biochemical model of the North Atlantic. Part 1. Data assimilation experiments. Journal of Marine Systems 127-153 (2003).

Natvik, L.-J., Evensen, G. & Eknes, M. A Weak Constraint Inverse for a Zero Dimensional Marine Ecosystem Model. Journal of Marine Systems 28, 19-44 (2001).

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Myrmehl, C., Garcon, V. & Evensen, G. Resumé de l´atelier international JGOFS/Modélisation. Modélisation des Cycles Biogéochimiques Marins, Paris, France 1-5 (1996).

Nansen Environmental and Remote Sensing Center	Nansen-Bangladesh International Centre for Coastal, Ocean and Climate Studies	Nansen International Environmental and Remote Sensing Center
Nansen Environmental Research Center – India	Nansen–Zhu International Research Centre	Nansen-Tutu Centre for Marine Environmental Research