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Items where Author is "Janjic Pfander, Tijana"

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Article

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
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
Albertella, A. , Savchenko, R. , Janjic Pfander, T. , Rummel, R. , Bosch, W. and Schröter, J. (2012)
High resolution dynamic ocean topography in the Southern Ocean from GOCE ,
Geophys. J. Int. , (190), pp. 922-930 .
doi:10.1111/j.1365-246X.2012.05531.x , hdl:10013/epic.42121
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Article
Janjic Pfander, T. , Schröter, J. , Savcenko, R. , Bosch, W. , Albertella, A. , Rummel, R. and Klatt, O. (2012)
Impact of combining GRACE and GOCE gravity data on ocean circulation estimates ,
Ocean Science, 8 , pp. 65-79 .
doi:10.5194/os-8-65-2012 , hdl:10013/epic.38893

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. , Schröter, J. , Albertella, A. , Bosch, W. , Rummel, R. , Savcenko, R. , Schwabe, J. and Scheinert, M. (2011)
Assimilation of geodetic dynamic ocean topography using ensemble based Kalman filter ,
Journal of Geodynamics .
doi:10.1016/j.jog.2011.07.001 , hdl:10013/epic.39621

Article
Janjic Pfander, T. , Schröter, J. , Savcenko, R. , Bosch, W. , Albertella, A. , Rummel, R. and Klatt, O. (2011)
Impact of combining GRACE and GOCE gravity data on ocean circulation estimates ,
Ocean Sci. Discuss, 8 , pp. 1535-1573 .
doi:10.5194/osd-8-1535-2011 , hdl:10013/epic.39481

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
Janjic, Z. , Janjic Pfander, T. and Vasic, R. (2010)
A Class of Conservative Fourth Order Advection Schemes and Impact of Enhanced Formal Accuracy on Extended Range Forecasts ,
Early Online Release Monthly Weather Review. .
doi:10.1175/2010MWR3448.1 , hdl:10013/epic.36915

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
Rollenhagen, K. , Timmermann, R. , Janjic Pfander, T. , Schröter, J. and Danilov, S. (2009)
Assimilation of sea ice motion in a Finite Element Sea Ice Model ,
Jourmal of Geophysical Research, 114, C05007 .
doi:10.1029/2008JC005067 , hdl:10013/epic.32605
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Article
Skachko, S. , Danilov, S. , Janjic Pfander, T. , Schröter, J. , Sidorenko, D. , Savcenko, R. and Bosch, W. (2008)
Sequential assimilation of multi-mission dynamical topography into a global finite-element ocean model ,
Ocean Science, 4 , pp. 307-318 .
hdl:10013/epic.31849

Article
Janjic Pfander, T. and Cohn, S. E. (2006)
Treatment of Observation Error due to Unresolved Scales in Atmospheric Data Assimilation ,
Monthly Weather Review, 134 , pp. 2900-2915 .
hdl:10013/epic.31848

Article
Wulfmeyer, V. and Janjic Pfander, T. (2005)
Twenty-Four-Hour Observations of the Marine Boundary Layer Using Ship-borne NOAA High-Resolution Doppler Lidar. ,
Journal of Applied Meteorology, 44 (11), pp. 1723-1744 .
hdl:10013/epic.35584

Article
Janjic Pfander, T. (1998)
Comments on A finite-volume integration method for computing pressure gradient force in general vertical coordinates, by Shian-Jiann Lin (July B, 1997, 123, 1749- 1762). ,
Quart. J. Roy. Meteor. Soc., 124 , pp. 2527-2529 .
hdl:10013/epic.35640

Thesis

Thesis -PhD
Janjic Pfander, T. (2001)
Error due to Unresolved Scales in Estimation Problems for Atmospheric Data Assimilation. ,
PhD thesis, University of Maryland, College Park, Maryland.
hdl:10013/epic.35639

Conference

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 -Poster
Janjic Pfander, T. , Verlaan, M. and Loza, S. (2012)
Spectral consistency for ensemble square root filters ,
5th EnKF workshop, Rensselaerville, USA, 22 May 2012 - 24 May 2012 .
hdl:10013/epic.39681

Conference -Talk
Janjic Pfander, T. , Albertella, A. , Savcenko, R. , Schroeter, J. , Bosch, W. , Rummel, R. and Klatt, O. (2012)
Dynamical ocean topography from satellite measurements and its impact on Southern Ocean circulation estimates ,
Multidisciplinary Simulation, Estimation and Assimilation Systems Seminar Series, MIT, Cambridge, USA, 11 May 2012 - unspecified .
hdl:10013/epic.39682

Conference -Poster
Janjic Pfander, T. , Albertella, A. , Schröter, J. , Savcenko, R. , Rummel, R. and Bosch, W. (2012)
Assimilation of geodetic dynamic ocean topography with ensemble based Kalman filter ,
EGU, 22 April 2012 - 27 April 2012 .
hdl:10013/epic.39684
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Conference -Poster
Janjic Pfander, T. , Timmermann, R. and Schröter, J. (2012)
Improved representation of Southern Ocean fronts in a finite element ocean model ,
EGU, Vienna, 22 April 2012 - 27 April 2012 .
hdl:10013/epic.39683

Conference -Poster
Janjic Pfander, T. , Albertella, A. , Schröter, J. , Savcenko, R. , Rummel, R. and Bosch, W. (2012)
Impact of assimilation of dynamical ocean topography on Southern Ocean circulation estimates ,
Grace Science Team Meeting, Potsdam, September 2012 - unspecified .
hdl:10013/epic.42179
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Conference -Poster
Albertella, A. , Savchenko, R. , Janjic Pfander, T. , Rummel, R. , Bosch, W. and Schröter, J. (2012)
MDT from GOCE ,
Grace Science Team Meeting, Potsdam, September 2012 - unspecified .
hdl:10013/epic.42180
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Conference -Invited talk
Schröter, J. , Janjic Pfander, T. , Albertella, A. , Savchenko, R. , Rummel, R. , Bosch, W. , Schwabe, J. and Scheinert, M. (2012)
Sea Surface Topography and Mass Transport of the Antarctic Circumpolar Current (GEOTOP) ,
Grace Science Team Meeting, Potsdam, September 2012 - unspecified .
hdl:10013/epic.42178
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Conference -Poster
Albertella, A. , Janjic Pfander, T. , Savcenko, R. and Horwath, M. (2011)
The impact of the new gravity field models on the Mean Dynamic Ocean Topography and the derived geostrophic velocities ,
AGU Fall Meeting, San Francisco, USA, 5 December 2011 - 9 December 2011 .
hdl:10013/epic.38591
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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
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 ,
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
Albertella, A. , Savcenko, R. , Janjic Pfander, T. , Rummel, R. , Bosch, W. and Schröter, J. (2011)
Dynamic Ocean Topography in the Southern hemisphere from GOCE and multi-mission altimeter data ,
IUGG.06.11-07.07.2011 Melbourne. .
hdl:10013/epic.37736

Conference -Talk
Janjic Pfander, T. , Schröter, J. , Savcenko, R. , Bosch, W. , Albertella, A. , Rummel, R. and Klatt, O. (2011)
Ensemble based Kalman filter approach for assimilation of dynamical ocean topography from radar altimetry and GRACE/GOCE geoid ,
6th International Ensemble Kalman Filter Workshop, June 20-22 .
hdl:10013/epic.37720

Conference -Talk
Janjic Pfander, T. , Schröter, J. , Savcenko, R. , Bosch, W. , Albertella, A. , Rummel, R. and Klatt, O. (2011)
Impact of assimilation of dynamic ocean topography from radar altimetry and GRACE/GOCE geoid on Weddell Gyre ,
EGU 2011, ViennaApril. .
hdl:10013/epic.37547

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
Janjic Pfander, T. (2011)
Overview of localization techniques for ensemble based Kalman filter algorithms ,
Seminar, Große Systeme in der Datenassimilation, 5.7.2011, University Bremen. .
hdl:10013/epic.37734
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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 -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 -Invited talk
Janjic Pfander, T. , Schroeter, J. , Savcenko, R. , Bosch, W. , Albertella, A. , Rummel, R. and Klatt, O. (2010)
Assimilation of dynamic ocean topography from radar altimetry and GRACE/GOCE geoid into global ocean model using ensemble based Kalman filter ,
National Centers for Environmental Prediction Environmental Modeling Center (EMC) Seminar.12.2010. .
hdl:10013/epic.36438

Conference -Talk
Janjic Pfander, T. , Schröter, J. , Albertell, A. , Bosch, W. , Rummel, R. and Savcenko, R. (2010)
Assimilation of geodetic dynamical ocean topography data ,
COSPAR 2010, Bremen, Germany. .
hdl:10013/epic.35585
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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
Janjic Pfander, T. , Nereger, L. , Albertella, A. , Schröter, J. and Skachko, S. (2010)
Domain localization in ensemble based Kalman filter algorithms ,
MyOcean Science Days, Toulouse, December 1-3 .
hdl:10013/epic.36918

Conference -Conference paper
Albertella, A. , Rummel, R. , Savcenko, R. , Bosch, W. , Janjic Pfander, T. , Schröter, J. , Gruber, T. and Bouman, J. (2010)
Dynamic Ocean Topography from GOCE - Some Preparatory Attempts ,
in:Lacoste-Francis, H. (eds.) Proceedings of ESA Living Planet Symposium, ESA publication SP-686, ESA/ESTEC, ISBN (Online) 978-92-9221-250-6, ISSN .
hdl:10013/epic.35641

Conference -Talk
Albertella, A. , Rummel, R. , Savcenko, R. , Bosch, W. , Janjic Pfander, T. , Schröter, J. , Gruber, T. and Bouman, J. (2010)
Dynamic Ocean Topography from GOCE: Some Preparatory Attempts ,
ESA Living Planet Symposium, 28 June- 2 July 2010, Bergen, Norway. .
hdl:10013/epic.35567

Conference -Poster
Janjic Pfander, T. , Schröter, J. , Albertella, A. , Savcenko, R. , Bosch, W. and Rummel, R. (2010)
Mass and heat transport estimates by assimilation of geodetic dynamical ocean topography data ,
2010 AGU Fall MeetingDecember .
hdl:10013/epic.36439

Conference -Talk
Janjic, Z. , Janjic Pfander, T. and Vasic, R. (2010)
Multi-scale Eulerian model within the new National Environmental Modeling System ,
EGU 2010 Vienna. .
hdl:10013/epic.34736

Conference -Poster
Janjic Pfander, T. , Schröter, J. , Albertella, A. , Savcenko, R. , Bosch, W. and Rummel, R. (2010)
Preliminary results on impact of combining GRACE and GOCE data on ocean circulation estimates ,
Grace Science Meeting, Potsdam 11.11.2010-12.11.2010. .
hdl:10013/epic.36251
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Conference -Poster
Janjic Pfander, T. , Albertella, A. , Savcenko, R. , Schwabe, J. , Schröter, J. , Rummel, R. , Bosch, W. and Scheinert, M. (2010)
Sea surface topography and mass transport of the Antartic circumpolar current ,
DFG Colloquim of the Priority Program "Mass transport and mass distribution in the Earth system" (SPP 1257), Potsdam.10.2010. .
hdl:10013/epic.37738

Conference -Poster
Janjic Pfander, T. (2010)
Sea surface topography and mass transport of the Antartic circumpolar current ,
DFG Colloquim of the Priority Program "Mass transport and Mass Distribution in the Earth system" (SPP 1257), Potsdam.10.2010. .
hdl:10013/epic.37739

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 -Poster
Janjic Pfander, T. , Albertella, A. , Skachko, S. , Schröter, J. and Rummel, R. (2009)
Observational error covariance specification in ensemble based Kalman filter algorithms ,
5th WMO Symposium on Data Assimilation, Melbourne, Australia, October 5-9 .
hdl:10013/epic.33723
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Conference -Conference paper
Janjic Pfander, T. , Albertella, A. , Skachko, S. , Schröter, J. and Rummel, R. (2009)
Observational error covariance specification in ensemble based Kalman filter algorithms ,
Proceedings of 5th WMO Symposium on the Assimilation of Observations for Meteorology, Oceanography and Hydrology Melbourne 5-9 October 2009. .
hdl:10013/epic.34202

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 -Poster
Skachko, S. , Janjic Pfander, T. , Danilov, S. , Schröter, J. , Sidorenko, D. , Savcenko, R. and Bosch, W. (2009)
Sequential assimilation of multi-mission dynamical topography into a global finite-element ocean model ,
EGU 2009, Vienna. .
hdl:10013/epic.32581
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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 -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 -Poster
Rollenhagen, K. , Timmermann, R. , Janjic Pfander, T. and Schröter, J. (2007)
Assimilation of sea-ice velocity in a Finite Element Sea-Ice Model ,
North Atlantic Subpolar Gyre Workshop, Kiel, GermanyMarch 2007. .
hdl:10013/epic.27934
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Conference -Poster
Skachko, S. , Danilov, S. , Janjic Pfander, T. , Schröter, J. and Sidorenko, D. (2007)
Estimating circulation in Antarctic Circumpolar Current via sequential assimilation of multi-mission altimetry data ,
Joined International Symposium GSTM/ DFG-SPP1257, GFZ Potsdam GermanyOctober 2007. .
hdl:10013/epic.28181
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Conference -Poster
Janjic Pfander, T. , Skachko, S. , Danilov, S. and Schröter, J. (2007)
Hybrid SEIK algorithm for oceanographic data assimilation ,
IUGG XXIV 2007 Perugia Italy. .
hdl:10013/epic.30650
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Conference -Talk
Rollenhagen, K. , Timmermann, R. , Janjic Pfander, T. and Schröter, J. (2007)
Sea Ice Drift Assimilation in a Finite Element Sea Ice Model using a Singular Evolutive Interpolated Kalman Filter ,
General Assembly of the European Geophysical Union, Vienna, Austria, April 2007. .
hdl:10013/epic.27933
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Conference -Talk
Rollenhagen, K. , Timmermann, R. , Janjic Pfander, T. and Schröter, J. (2007)
Sea Ice Drift Data Assimilation in a Finite Element Sea Ice Model using a Singular Evolutive Interpolated Kalman Filter ,
IICWG Workshop on Sea Ice Modeling and Data Assimilation, OsloMay 2007. .
hdl:10013/epic.27932

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