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Items where Author is "Nerger, Lars"

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Article

Article
Yang, Q. , Loza, S. N. , Losch, M. , Liu, J. , Zhang, Z. , Nerger, L. and Yang, H. (2015)
Assimilating summer sea-ice concentration into a coupled ice–ocean model using a LSEIK filter ,
Annals of Glaciology, 56 (69), pp. 38-44 .
doi:10.3189/2015AoG69A740 , hdl:10013/epic.43865 Item availablity restricted.
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Article
Yang, Q. , Losa, S. N. , Losch, M. , Tian-Kunze, X. , Nerger, L. , Liu, J. , Kaleschke, L. and Zhang, Z. (2014)
Assimilating SMOS sea ice thickness into a coupled ice-ocean model using a local SEIK filter ,
Journal of Geophysical Research-Oceans .
doi:10.1002/2014JC009963 , hdl:10013/epic.44227 Item availablity restricted.
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Article
Loza, S. , Danilov, S. , Schröter, J. , Janjic Pfander, T. , Nerger, L. and Janssen, F. (2014)
Assimilating NOAA SST data into BSH operational circulation model for the North and Baltic Seas: Part 2. Sensitivity of the forecast's skill to the prior model error statistics ,
Journal of Marine Systems, 129 , pp. 259-270 .
doi:10.1016/j.jmarsys.2013.06.011 , hdl:10013/epic.41927
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Article
Kirchgessner, P. , Nerger, L. and Bunse-Gerstner, A. (2014)
On the choice of an optimal localization radius in ensemble Kalman filter methods ,
Monthly Weather Review, 142 (6), pp. 2165-2175 .
doi:10.1175/MWR-D-13-00246.1 , hdl:10013/epic.43420 Item availablity restricted.
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Article
Nerger, L. , Schulte, S. and Bunse-Gerstner, A. (2014)
On the influence of model nonlinearity and localization on ensemble Kalman smoothing ,
Quarterly Journal of the Royal Meteorological Society, (140), pp. 2249-2259 .
doi:10.1002/qj.2293 , hdl:10013/epic.42910
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Article
Nerger, L. and Hiller, W. (2013)
Software for Ensemble-based Data Assimilation Systems - Implementation Strategies and Scalability ,
Computers & Geosciences, 55 , pp. 110-118 .
doi:10.1016/j.cageo.2012.03.026 , hdl:10013/epic.39644
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Article
Fournier, A. , Nerger, L. and Aubert, J. (2013)
An ensemble Kalman filter for the time-dependent analysis of the geomagnetic field ,
Geochemistry Geophysics Geosystems, 14 (10), pp. 4035-4043 .
doi:10.1002/ggge.20252 , hdl:10013/epic.42705

Article
Loza, S. , Schröter, J. , Danilov, S. , Nerger, L. , Maßmann, S. and Janssen, F. (2012)
Assimilating NOAA SST data into the BSH operational circulation model for the North and Baltic Seas: Inference about the data ,
Journal of Marine Systems, 105-08 , pp. 152-162 .
doi:10.1016/j.jmarsys.2012.07.008 , hdl:10013/epic.39926
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Article
Nerger, L. , Janjic Pfander, T. , Schröter, J. and Hiller, W. (2012)
A regulated localization scheme for ensemble-based Kalman filters ,
Quarterly Journal of the Royal Meteorological Society, 138 , pp. 802-812 .
doi:10.1002/qj.945 , hdl:10013/epic.39035
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Article
Nerger, L. , Janjic Pfander, T. , Schröter, J. and Hiller, W. (2012)
A Unification of Ensemble Square Root Kalman Filters ,
Monthly Weather Review, 140 , pp. 2335-2345 .
doi:10.1175/MWR-D-11-00102.1 , hdl:10013/epic.39943
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Article
Janjic Pfander, T. , Nerger, L. , Albertella, A. , Schröter, J. and Skachko, S. (2011)
On domain localization in ensemble based Kalman filter algorithms ,
Monthly Weather Review, 139 (7), pp. 2046-2060 .
doi:10.1175/2011MWR3552.1 , hdl:10013/epic.37781
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Article
Loza, S. , Nerger, L. , Janjic Pfander, T. , Schröter, J. and Janssen, F. (2010)
Entwicklung und Implementierung eines Verfahrens zur Datenassimilation von Fernerkundungsdaten in ein operationelles Modell für die Nord- und Ostsee (DOM) ,
DeMarine Umwelt, Jahresbericht 2009-2010, Operationalisierung mariner GMES-Dienste in Deutschland, 57 - 68 .
hdl:10013/epic.38015
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Article
Nerger, L. and Gregg, W. W. (2008)
Improving Assimilation of SeaWiFS Data by the Application of Bias Correction with a Local SEIK Filter ,
Journal of marine systems, 73 (2008), pp. 87-102 .
doi:10.1016/j.jmarsys.2007.09.007 , hdl:10013/epic.30949
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Article
Nerger, L. and Gregg, W. W. (2007)
Assimilation of SeaWiFS data into a global ocean-biogeochemical model using a local SEIK Filter ,
Journal of marine systems, 68 , pp. 237-254 .
doi:10.1016/j.jmarsys.2006.11.009 , hdl:10013/epic.28168
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Article
Nerger, L. , Danilov, S. , Kivman, G. , Hiller, W. and Schröter, J. (2007)
Data assimilation with the Ensemble Kalman Filter and the SEIK filter applied to a finite element model of the North Atlantic ,
Journal of marine systems, 65 (1), pp. 288-298 .
doi:10.1016/j.jmarsys.2005.06.009 , hdl:10013/epic.21593
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Article
Nerger, L. , Danilov, S. , Hiller, W. and Schröter, J. (2006)
Using sea-level data to constrain a finite-element primitive-equation ocean model with a local SEIK filter ,
Ocean dynamics, 56 (5), pp. 634-649 .
doi:10.1007/s10236-006-0083-0 , hdl:10013/epic.23441
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Article
Nerger, L. , Hiller, W. and Schröter, J. (2005)
A Comparison of Error Subspace Kalman Filters ,
Tellus series a-dynamic meteorology and oceanographyA(5), 57 , pp. 715-735 .
doi:10.1111/j.1600-0870.2005.00141.x , hdl:10013/epic.19599
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Article
Nerger, L. , Hiller, W. and Schröter, J. (2005)
PDAF - The Parallel Data Assimilation Framework: Experiences with Kalman Filtering ,
Use of high performance computing in meteorology : proceedings of the Eleventh ECMWF Workshop on the Use of High Performance Computing in Meteorology, Reading, UK, 25 - 29 October 2004 / Eds.: Walter Zwieflhofer; Geoge Mozdzynski, Singapore [u.a.] : World, pp. 63-83 .
hdl:10013/epic.22580
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Article
Nerger, L. , Alcubierre, M. , Benger, W. , Bruegmann, B. , Lanfermann, G. , Seidel, E. and Takahashi, R. (2001)
3D Grazing Collision of Two Black Holes ,
Physical review letters, 87 .
hdl:10013/epic.16104

Thesis

Thesis -PhD
Nerger, L. (2004)
Parallel Filter Algorithms for Data Assimilation in Oceanography ,
PhD thesis, Universität Bremen.
hdl:10013/epic.20800
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Conference

Conference -Invited talk
Nerger, L. (2014)
Ensemble Data Assimilation: Algorithms and Software ,
Seminar at National Marine Environmental Forecasting Center (NMEFC), Beijing, China, October 10, 2014 .
hdl:10013/epic.44357
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Conference -Talk
Nerger, L. , Loza, S. , Brüning, T. and Janssen, F. (2014)
The HBM-PDAF assimilation system for operational forecasts in the North and Baltic Seas ,
EuroGOOS 2014, Lisbon, Portugal, 28 October 2014 - 30 October 2014 .
hdl:10013/epic.44356
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Conference -Poster
Nerger, L. and Kirchgessner, P. (2014)
Extending NEMO for ensemble data assimilation on supercomputers with the parallel data assimilation framework PDAF ,
EGU General Assembly, April 27 - May 3, 2014, Vienna, Austria (Geophysical Research Abstracts, Vol. 16, EGU2014-2191) .
hdl:10013/epic.43479
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Conference -Poster
Nerger, L. (2014)
On sequential observation processing in localized ensemble Kalman filters ,
EGU General Assembly, April 27 - May 3, 2014, Vienna, Austria (Geophysical Research Abstracts, Vol. 16, EGU2014-2194) .
hdl:10013/epic.43478
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Conference -Poster
Yang, Q. , Loza, S. , Losch, M. , Tian-Kunze, X. , Nerger, L. , Liu, J. , Kaleschke, L. and Zhang, Z. (2014)
Improving the Arctic sea-ice numerical forecasts by assimilation using a local SEIK filter ,
International Symposium on Sea Ice in a Changing Environment, Hobart, Australia, 10 March 2014 - 14 March 2014 .
hdl:10013/epic.43298
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Conference -Poster
Nerger, L. (2014)
On sequential observation processing in localized ensemble Kalman filters ,
International Symposium on Data Assimilation, February 24-27, Munich, Germany .
hdl:10013/epic.43126
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Conference -Poster
Klus, A. , Nerger, L. and Bunse-Gerstner, A. (2014)
An adaptive error subspace method for ensemble-based Kalman filters ,
International Symposium on Data Assimilation, February 24-27, Munich, Germany .
hdl:10013/epic.43127
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Conference -Invited talk
Nerger, L. (2014)
Aspects of Localization in Ensemble Kalman Filters ,
Seminar at University of Reading, UK, July 3, 2014 .
hdl:10013/epic.44184
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Conference -Poster
Nerger, L. and Kirchgessner, P. (2014)
Extending NEMO for Ensemble Data Assimilation on Supercomputers with the Parallel Data Assimilation Framework PDAF ,
MyOcean Science Days, Open Science Conference on Operational Oceanography in Europe, Toulouse, France, 22 September 2014 - 24 September 2014 .
hdl:10013/epic.44185
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Conference -Poster
Nerger, L. , Ultaf, U. , Barth, A. , Bertino, L. , Brankart, J. M. , Brasseur, P. , Candille, G. , De Mey, P. , Fowler, A. , Kirchgessner, P. , van Leeuwen, P. J. , van Velzen, N. , Verlaan, M. and Beckers, J. M. (2014)
The SANGOMA Tools For Data Assimilation ,
MyOcean Science Days, Open Science Conference on Operational Oceanography in Europe, Toulouse, France, 22 September 2014 - 24 September 2014 .
hdl:10013/epic.44186
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Conference -Invited talk
Fournier, A. , Aubert, J. , Nerger, L. and Sanchez, S. M. (2013)
Data assimilation in terrestrial magnetism: An ensemble Kalman filter approach ,
AGU Fall Meeting, December 9-13, 2013, San Francisco, CA, USA .
hdl:10013/epic.42911

Conference -Conference paper
Loza, S. , Danilov, S. , Schröter, J. , Nerger, L. , Maßmann, S. and Janssen, F. (2013)
Assimilating NOAA’s SST data and in situ T, S profiles into the BSH operational circulation model for the North and Baltic Seas ,
The Future of Operational Oceanography, Congress Center Hamburg, Hamburg, Germany, 8 October 2013 - 10 October 2013 .
hdl:10013/epic.42579
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Conference -Poster
Loza, S. , Danilov, S. , Schröter, J. , Nerger, L. , Maßmann, S. and Janssen, F. (2013)
Assimilating NOAA’s SST data and in situ T, S profiles into the BSH operational circulation model for the North and Baltic Seas ,
Sixth WMO Symposium on Data Assimilation, Maryland, USA, 7 October 2013 - 11 October 2013 .
hdl:10013/epic.42562
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Conference -Poster
Nerger, L. , Schröter, J. and Hiller, W. (2013)
The Error-Subspace Transform Kalman Filter ,
6th WMO Symposium on Data Assimilation, College Park, MD, USA October 7-11, 2013 .
hdl:10013/epic.42506
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Conference -Poster
Nerger, L. , Schröter, J. and Hiller, W. (2013)
Scalable sequential data assimilation with the Parallel Data Assimilation Framework PDAF ,
6th WMO Symposium on Data Assimilation, College Park, MD, USA October 7-11, 2013 .
hdl:10013/epic.42505
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Conference -Invited talk
Nerger, L. , Schulte, S. and Bunse-Gerstner, A. (2013)
Ensemble smoothing under the influence of nonlinearity ,
Seminar at University of Reading, UK, July 2, 2013 .
hdl:10013/epic.41794
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Conference -Invited talk
Nerger, L. (2013)
Using Ensemble Kalman Filters to Assimilate Dynamic Ocean Topography Data into a Global Ocean Model ,
Seminar at University of Bonn, Institute for Geodesy and Geo-Information, Germany, June 20, 2013 .
hdl:10013/epic.41731
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Conference -Talk
Nerger, L. , Schulte, S. and Bunse-Gerstner, A. (2013)
On the impact of nonlinearity on ensemble smoothing ,
EGU General Assembly, April 8 - 12, 2013, Vienna, Austria (Geophysical Research Abstracts, Vol. 15, EGU2013-1981) .
hdl:10013/epic.41379
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Conference -Poster
Loza, S. , Danilov, S. , Schröter, J. , Nerger, L. , Maßmann, S. and Janssen, F. (2013)
Validating an Ensemble based Forecasting System of the North and Baltic Seas ,
EGU General Assembly , Vienna (Austria), 7 April 2013 - 12 April 2013 .
hdl:10013/epic.41401
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Conference -Poster
Nerger, L. , Albertella, A. , Bosch, W. , Janjic Pfander, T. , Schnur, R. , Savcenko, R. , Scheinert, M. , Schröter, J. and Schwabe, J. (2013)
Assimilation of dynamic topography in a global model ,
EGU General Assembly, April 8 - 12, 2013, Vienna, Austria (Geophysical Research Abstracts, Vol. 15, EGU2013-10271) .
hdl:10013/epic.41365
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Conference -Invited talk
Nerger, L. (2013)
Data Assimilation - Practical Aspects and Case Studies ,
Lecture at Korea Institute of Atmospheric Prediction Systems (KIAPS), Seoul, Korea, May 30, 2013 .
hdl:10013/epic.41604
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Conference -Invited talk
Nerger, L. (2013)
Data Assimilation - Theoretical and Algorithmic Aspects ,
Lecture at Korea Institute of Atmospheric Prediction Systems (KIAPS), Seoul, Korea, May 28, 2013 .
hdl:10013/epic.41603
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Conference -Invited talk
Nerger, L. (2013)
Ensemble Data Assimilation: Algorithmic and Practical Aspects ,
Colloquium at Department of Meteorology, Goethe University, Frankfurt am Main, Germany, November 21, 2013 .
hdl:10013/epic.42703

Conference -Poster
Brune, S. , Nerger, L. and Baehr, J. (2013)
Ocean initialization using an ensemble Kalman filter in a coupled climate model ,
International workshop on seasonal to decadal prediction, Toulouse, France, May 13-16, 2013 .
hdl:10013/epic.41619

Conference -Talk
Nerger, L. (2012)
Practical aspects of ensemble-based Kalman filters ,
Workshop "Mathematical and Algorithmic Aspects of Atmosphere-Ocean Data Assimilation", Mathematical Research Institute Oberwolfach, Oberwolfach, Germany, December 2-8, 2012 .
hdl:10013/epic.40456
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Conference -Poster
Loza, S. , Danilov, S. , Schröter, J. , Nerger, L. , Maßmann, S. and Janssen, F. (2012)
Augmenting the BSH operational forecasting system by in situ data assimilation ,
MyOcean Science Days, Geesthacht (Germany), 19 November 2012 - 21 November 2012 .
hdl:10013/epic.40323
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Conference -Poster
Siiriä, S. M. , Axell, L. , Fu, W. , Loza, S. and Nerger, L. (2012)
Baltic sea operational data assimilation: Current state and future plans ,
MyOcean Science Days, Geesthacht, Germany, November 19-21, 2012 .
hdl:10013/epic.40325

Conference -Talk
Nerger, L. , Loza, S. , Schröter, J. , Maßmann, S. and Janssen, F. (2012)
An ensemble-based forecasting system for the North and Baltic Seas using the BSH circulation model and PDAF ,
MyOcean Science Days, Geesthacht, Germany, 19 November 2012 - 21 November 2012 .
hdl:10013/epic.40324
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Conference -Poster
Nerger, L. , Schulte, S. and Bunse-Gerstner, A. (2012)
Ensemble-smoothing under the influence of nonlinearity ,
International Colloquium on Data Assimilation, Offenbach, Germany, October 8-11, 2012 .
hdl:10013/epic.40084
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Conference -Invited talk
Nerger, L. , Hiller, W. and Schröter, J. (2012)
Numerical Aspects of Ensemble Square-root Kalman Filters ,
NUMDIFF-13: Numerical treatment of differential equations, Minisymposium on Computational Models, uncertainty and data assimilation, Halle (Saale), Germany, September 10-14, 2012 .
hdl:10013/epic.39971

Conference -Poster
Nerger, L. , Hiller, W. and Schröter, J. (2012)
The Parallel Data Assimilation Framework PDAF - a flexible software framework for ensemble data assimilation ,
EGU General Assembly, April 23 - 27, 2012, Vienna, Austria (Geophysical Research Abstracts, Vol. 14, EGU2012-1885) .
hdl:10013/epic.39633
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Conference -Poster
Nerger, L. , Hiller, W. and Schröter, J. (2012)
The Error-Subspace Transform Kalman Filter ,
Ocean Sciences Meeting, Salt Lake City, UT, USA, February 20-24, 2012 .
hdl:10013/epic.38902
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Conference -Talk
Nerger, L. (2012)
Recent developments in localization and ensemble square-root Kalman filters ,
Seminar, Global Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, USA, February 16 .
hdl:10013/epic.39056

Conference -Poster
Kirchgessner, P. , Nerger, L. and Bunse-Gerstner, A. (2012)
Localization in ensemble data assimilation ,
International Symposium on data assimilation, Deutscher Wetterdienst Offenbach, 8 October 2012 - 11 October 2012 .
hdl:10013/epic.40181
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Conference -Poster
Nerger, L. , Hiller, W. and Schröter, J. (2011)
Scalable sequential data assimilation with the Parallel Data Assimilation Framework PDAF ,
Germany Symposium an Data Assimilation, Offenbach, Germany .
hdl:10013/epic.38336
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Conference -Poster
Nerger, L. , Janjic Pfander, T. , Hiller, W. and Schröter, J. (2011)
A regulated localization method for ensemble-based Kalman filters ,
Germany Symposium an Data Assimilation, Offenbach, Germany .
hdl:10013/epic.38350
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Conference -Talk
Nerger, L. (2011)
Aspects of the practical application of ensemble-based Kalman filters ,
Seminar, Große Systeme in der Datenassimilation, July 12, 2011, University of Bremen .
hdl:10013/epic.38333
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Conference -Talk
Nerger, L. (2011)
An Overview on Data Assimilation ,
Workshop zur Modellierung und Datenassimilation, German Maritime and Hydrographic Agency (BSH), Hamburg, Germany, January 19, 2011 .
hdl:10013/epic.38744
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Conference -Poster
Loza, S. , Schröter, J. , Danilov, S. , Nerger, L. , Janjic Pfander, T. , Maßmann, S. and Janssen, F. (2011)
Assimilating NOAA SST data into BSH operational circulation model for the North and Baltic Seas: What can we learn about the model and data? ,
EGU, ViennaApril. .
hdl:10013/epic.37329
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Conference -Invited talk
Nerger, L. (2011)
The Data Assimilation Zoo. Section: Kalman Filters ,
University of Maryland, Department of Atmospheric and Oceanic Science, College Park, MD, USA, March 9 .
hdl:10013/epic.37139

Conference -Talk
Loza, S. N. , Schröter, J. , Danilov, S. , Nerger, L. , Maßmann, S. and Janssen, F. (2011)
Developing a data assimilation system for the BSH operational model of the North and Baltic Seas: Results and Perspectives. ,
Symposium on "The Future of Operational Oceanography", Hamburg, 25 October 2011 - 27 October 2011 .
hdl:10013/epic.39013

Conference -Poster
Janjic Pfander, T. , Nerger, L. , Albertella, A. , Schröter, J. and Skachko, S. (2011)
Domain Localization in ensemble based Kalman filter algorithms ,
6th International Ensemble Kalman filter Workshop June 20-22 .
hdl:10013/epic.37722

Conference -Poster
Janjic Pfander, T. , Nerger, L. , Albertella, A. , Schröter, J. and Skachko, S. (2011)
Domain localization in ensemble based Kalman filter algorithms ,
EGU 2011 Vienna, April 3-8 .
hdl:10013/epic.37349
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Conference -Talk
Loza, S. , Schröter, J. , Danilov, S. , Nerger, L. , Janjic Pfander, T. and Janssen, F. (2011)
Implementing SEIK filter for NOAA SST data assimilation into BSH operational circulation model for the North and Baltic Seas: Inference about the model and data ,
EnKF workshop, Ulvik (Norway), June .
hdl:10013/epic.37912
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Conference -Poster
Nerger, L. , Janjic Pfander, T. , Schröter, J. and Hiller, W. (2011)
On the relation of the SEIK and ETKF filter methods ,
EGU General Assembly, April 4 - 8, 2011, Vienna, Austria (Geophysical Research Abstracts, Vol. 13, EGU2011-3338. .
hdl:10013/epic.37441
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Conference -Invited talk
Nerger, L. (2011)
The Parallel Data Framework PDAF for scalable sequential data assimilation ,
Workshop on Programming Environments for Data Assimilation: Software and Applications, Deltares, Delft, Netherlands, January 31 .
hdl:10013/epic.36971

Conference -Poster
Nerger, L. , Hiller, W. and Schröter, J. (2011)
Scalable sequential data assimilation with the Parallel Data Assimilation Framework PDAF ,
IMUM 2011 - The 10th International Workshop on Multiscale (Un-)structured Mesh Numerical Modelling for coastal, shelf and global ocean dynamics, Bremerhaven, Germany, August 22-25 .
hdl:10013/epic.37889

Conference -Poster
Nerger, L. , Janjic Pfander, T. , Schröter, J. and Hiller, W. (2011)
A regulated localization method for ensemble-based Kalman filters ,
6th international EnKF-Workshop, Ulvik Norway, June 20-22 .
hdl:10013/epic.37887
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Conference -Invited talk
Janjic Pfander, T. , Nerger, L. and Schröter, J. (2010)
About domain localization in ensemble based Kalman filter algorithms ,
TU Delft, NetherlandsApril 2010. .
hdl:10013/epic.34892
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Conference -Talk
Loza, S. , Schröter, J. , Janjic Pfander, T. , Nerger, L. , Danilov, S. and Janssen, F. (2010)
Assimilating NOAA SST data into BSH operational circulation model for North and Baltic Seas ,
COSPAR 2010, Bremen, Germany. .
hdl:10013/epic.35586
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Conference -Poster
Loza, S. , Schröter, J. , Nerger, L. , Janjic Pfander, T. , Danilov, S. and Janssen, F. (2010)
Developing a data assimilation system for operational BSH circulation model of North and Baltic Seas: Local SEIK implementation for NOAA SST data assimilation ,
MyOcean Science Days, ToulouseDecember. .
hdl:10013/epic.36350
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Conference -Poster
Loza, S. , Schröter, J. , Nerger, L. , Janjic Pfander, T. , Danilov, S. and Janssen, F. (2010)
Development of a data assimilation system for BSHcmod operational model of the North and Baltic Seas ,
EGU, ViennaMay. .
hdl:10013/epic.35435
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Conference -Talk
Nerger, L. , Hiller, W. and Schröter, J. (2010)
Scalable sequential data assimilation with the Parallel Data Assimilation Framework PDAF ,
2010 Ocean Sciences Meeting, Portland, Oregon, February 20-26 .
hdl:10013/epic.34332
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Conference -Poster
Nerger, L. , Loza, S. , Schröter, J. , Hiller, W. and Janssen, F. (2010)
Towards Operational Data Assimilation in the North and Baltic Seas with the Parallel Data Assimilation Framework ,
MyOcean Science Days, Toulouse, France, December 1-2 .
hdl:10013/epic.36769
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Conference -Talk
Janjic Pfander, T. , Nerger, L. , Schröter, J. and Danilov, S. (2009)
Assimilation of geostrophic velocity and height data into a finite element ocean model ,
EGU 2009, Vienna. .
hdl:10013/epic.32779

Conference -Invited talk
Nerger, L. (2009)
Ensemble Data Assimilation ,
NERC FREE (Flood Risk From Extreme Events) Ensemble Workshop, Reading, UK, September 23-24 .
hdl:10013/epic.33445

Conference -Talk
Nerger, L. (2009)
An Overview on Data Assimilation ,
Workshop on sequential data assimilation with the General Estuarine Ocean Model. GKSS, Geesthacht, Germany, March 10-11 .
hdl:10013/epic.34702

Conference -Poster
Nerger, L. , Janjic Pfander, T. , Hiller, W. and Schröter, J. (2009)
SEIK - the unknown ensemble Kalman filter ,
5th WMO Symposium on Data Assimilation, Melbourne, Australia, October 5 - 9 .
hdl:10013/epic.33446
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Conference -Talk
Nerger, L. (2008)
Entwicklung und Implementierung eines Verfahrens zur Datenassimilation von ernerkundungsdaten in ein operationelles Modell für Nord- und Ostsee ,
Tagung: DeCOVER, DeMARINE und DeSECURE - Deutsche Schnittstellenprojekte zu GMES. 18.06 - 19.06.2008, Bonn, Germany. .
hdl:10013/epic.30811

Conference -Poster
Nerger, L. and Gregg, W. W. (2008)
Estimation of Model Bias by the Assimilation of Satellite Ocean Chlorophyll Data into a Global Model ,
Ocean Sciences Meeting, Orlando, FL, USA, March .
hdl:10013/epic.31317

Conference -Invited talk
Schröter, J. , Danilov, S. , Sidorenko, D. , Wang, Q. , Timmermann, R. , Nerger, L. , Huerta-Casas, A. , Maßmann, S. , Böning, C. , Janjic Pfander, T. , Behrens, J. , Androssov, A. , Richter, F. , Hiller, W. , Harig, S. and Brunnabend, S. E. (2008)
FEOM, status and plans ,
Seventh International Workshop on Unstructured Grid Numerical Modelling of Coastal, Shelf and Ocean Flows, September 17-19 2008, Halifax, Canada.. .
hdl:10013/epic.31441

Conference -Invited talk
Nerger, L. and Gregg, W. W. (2008)
Improving Assimilation of SeaWiFS Data by the Application of Bias Correction with a Local SEIK Filter ,
Global Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, USA, March 10 .
hdl:10013/epic.30591

Conference -Poster
Janjic Pfander, T. , Nerger, L. and Schröter, J. (2008)
On domain localization in ensemble based Kalman Flter algorithms ,
WWRP Workshop, 10-13 November 2008, Buenos Aires, Argentina. .
hdl:10013/epic.31510

Conference -Talk
Nerger, L. (2008)
Sequential data assimilation on high-performance computers with the Parallel Data Assimilation Framework ,
13th ECMWF Workshop on High Performance Computing in Meteorology, Reading, UK, November 3--7 .
hdl:10013/epic.31509
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Conference -Invited talk
Nerger, L. (2008)
The local SEIK filter and its application for state estimation in a global biogeochemical model ,
University of Reading, Environmental Systems Science Centre, Reading, UK, November 6 .
hdl:10013/epic.31883

Conference -Poster
Nerger, L. and Gregg, W. W. (2007)
Assimilation of Satellite Ocean Chlorophyll Data with Bias Correction for Biogeochemical State Estimation ,
Young Scientists Workshop "Data assimilation, dealing with uncertainties, and the prediction capabilities of models in water research" of the DFG -Senate Commission on Water Research (KoWa), October 8-11, Lueneburg, Germany. .
hdl:10013/epic.28027

Conference -Poster
Nerger, L. and Gregg, W. W. (2007)
Assimilation of satellite ocean chlorophyll data for biogeochemical state estimation - univariate and multivariate aspects ,
AGU Joint Meeting, Acapulco, Mexico, May 22-25 .
hdl:10013/epic.26778

Conference -Invited talk
Nerger, L. (2007)
Data Assimilation into Ocean-Biogeochemical Models ,
University of Kiel, Germany, February 1 .
hdl:10013/epic.26274

Conference -Poster
Nerger, L. and Gregg, W. W. (2007)
Multivariate Assimilation of Satellite Ocean Chlorophyll Data into a Global Model ,
NASA MAP Science Team Meeting, Adelphi, MD, USA, March 7-9 .
hdl:10013/epic.26448

Conference -Invited talk
Nerger, L. (2007)
The SEIK Filter and its Application in Oceanography ,
Norwegian Meteorological Institute, Oslo, November 8 .
hdl:10013/epic.28475

Conference -Poster
Nerger, L. and Gregg, W. W. (2007)
State estimation in an ocean-biogeochemical model by assimilation of satellite ocean chlorophyll data ,
Workshop ``Data Assimilation in Support of Coastal Ocean Observing Systems'', Oregon State University, Corvallis, OR, April 3--5 .
hdl:10013/epic.26504

Conference -Invited talk
Nerger, L. (2006)
Assimilation with the Ensemble Kalman Filter and the SEIK Filter in the North Atlantic ,
Informal seminar at at Johns Hopkins University, Department of Earth and Planetary Sciences, Baltimore, USA, April 12 .
hdl:10013/epic.25854

Conference -Talk
Nerger, L. and Gregg, W. W. (2006)
Constraining a global three-dimensional ocean biogeochemical model by SeaWiFS ocean Chlorophyll data using a local SEIK Filter ,
Ocean Sciences Meeting, February 20-24, 2006, Honolulu, USA. .
hdl:10013/epic.25853

Conference -Poster
Nerger, L. and Gregg, W. W. (2006)
Multivariate Assimilation of Satellite Ocean Chlorophyll Data Into a Global Model - Prospects and Challenges ,
AGU Fall Meeting, San Francisco, CA, USA, December 11-15 .
hdl:10013/epic.26091
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Conference -Poster
Nerger, L. , Hiller, W. and Schröter, J. (2005)
The SEIK Filter - an alternative to the Ensemble Kalman Filter!? ,
4th WMO International Symposium on Assimilation of Observations in Meteorology and Oceanography, April 18-22, 2005, Prague, Czech Republic. .
hdl:10013/epic.23014
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Conference -Poster
Nerger, L. , Danilov, S. , Kivman, G. , Hiller, W. and Schröter, J. (2004)
Comparison of the Ensemble Kalman Filter and the SEIK filter applied to a finite element model of the North Atlantic ,
EGU 1st General Assembly, Nice, France, April 25 - 30 .
hdl:10013/epic.20984

Conference -Talk
Nerger, L. , Danilov, S. , Kivman, G. , Hiller, W. and Schröter, J. (2004)
Data Assimilation with the Ensemble Kalman Filter and the SEIK Filter applied to a Finite Element Model of the North Atlantic ,
36th International Liège Colloquium on Ocean Dynamics, Liege, Belgium, May 3-7 .
hdl:10013/epic.20987

Conference -Talk
Schröter, J. , Kivman, G. , Nerger, L. and Danilov, S. (2004)
Interannual variability of the meridional heat transport and overturning in the North Atlantic ,
EGU General Assembly 2004, 25-30 April, Nice, France. .
hdl:10013/epic.21152

Conference -Poster
Nerger, L. , Kivman, G. , Hiller, W. , Danilov, S. and Schröter, J. (2004)
The North Atlantic heat budget studied by assimilation of satellite altimetry using the SEIK filter ,
CLIVAR Workshop on North Atlantic Thermohaline Circulation Variability September 13-16, Kiel, Germany. .
hdl:10013/epic.23346

Conference -Talk
Nerger, L. , Hiller, W. and Schröter, J. (2004)
PDAF - The Parallel Data Assimilation Framework: Experiences with Kalman Filtering ,
11th ECMWF Workshop on Use of High Performance Computing in Meteorology, October 25-29, 2004, Reading, UK. .
hdl:10013/epic.21998
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Conference -Talk
Nerger, L. , Hiller, W. and Schröter, J. (2004)
A Parallel Data Assimilation Framework on HLRN: Experiences with Kalman-Filtering ,
HLRN-Workshop on Current Issues in Atmosphere/Ocean Modeling and Data Assimilation, Bremerhaven, Germany, May 10-11 .
hdl:10013/epic.20991

Conference -Invited talk
Nerger, L. , Hiller, W. and Schröter, J. (2004)
Parallel Error Subspace Kalman Filters ,
Seminar at Global Modeling and Assimilation Office, NASA Goddard Space Flight Center, USA, September 7 .
hdl:10013/epic.22004

Conference -Talk
Nerger, L. , Hiller, W. and Schröter, J. (2004)
SEIK vs. EnKF: On the benefit of higher order sampling and error subspace formulation ,
EGU 1st General Assembly, Nice, France, April 25 - 30 .
hdl:10013/epic.20986

Conference -Talk
Schröter, J. , Kivman, G. , Nerger, L. , Danilov, S. , Sidorenko, D. and Seufer, V. (2004)
The circulation in the North Atlantic derived from new geodetic missions ,
EGU General Assembly 2004, 25-30 April, Nice, France. .
hdl:10013/epic.21154

Conference -Poster
Nerger, L. , Hiller, W. , Schröter, J. , Kivman, G. and Danilov, S. (2003)
A Data Assimilation study with the Kalman Filter on a finite element ocean model ,
EGS-AGU-EUG Joint Assembly, Nice, FranceApril 2003. .
hdl:10013/epic.19006
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Conference -Poster
Nerger, L. , Hiller, W. and Schröter, J. (2003)
The SEEK Filter Revisited ,
EGS-AGU-EUG Joint Assembly, Nice, FranceApril 2003. .
hdl:10013/epic.19005
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Conference -Poster
Nerger, L. , Hiller, W. and Schröter, J. (2002)
A Comparison of Data Assimilation with the Ensemble Kalman Filter and the SEEK Filter applied to non-linear Shallow Water Equations ,
EGS XXVII General Assembly, Nice, April 21-26 .
hdl:10013/epic.17171
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Conference -Talk
Nerger, L. (1999)
Initial data for grazing collisions of black holes: numerical examination and evolution (In German: Anfangsdaten fuer streifende Kollisionen Schwarzer Loecher: Numerische Untersuchung und Evolution) ,
Conference "Aktuelle Entwicklungen der Gravitationstheorie", Bad Honneff, September 6-9 .
hdl:10013/epic.26449

"Berichte zur Polar- und Meeresforschung"

"Berichte zur Polar- und Meeresforschung" PhD
Nerger, L. (2004)
Parallel filter algorithms for data assimilation in oceanography = Parallele Filteralgorithmen zur Datenassimilation in der Ozeanographie ,
Berichte zur Polar- und Meeresforschung (Reports on Polar and Marine Research), Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 487 , 175 p. .
hdl:10013/epic.10492
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