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Number of items: 67.

Not peer-reviewed

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 -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. , 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 -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 -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 -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 -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 -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 -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 -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 -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 -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 -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

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 -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 -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 -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 -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

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

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 -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 -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 -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. (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. 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

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 -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 -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 -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

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 -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 -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 -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 -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 -Invited talk

Nerger, L. (2007)
The SEIK Filter and its Application in Oceanography ,

Norwegian Meteorological Institute, Oslo, November 8 .

hdl:10013/epic.28475

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 -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 -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. , 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

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

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 -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 -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 -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 -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 -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 -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. , 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