= Publications and Presentations = == Presentations == PDAF has been presented at different conferences. Here are some slides from these presentations: [http://epic.awi.de/Publications/Ner2011a.pdf The Parallel Data Assimilation Framework PDAF for scalable sequential data assimilation],[[BR]] Workshop on Programming Environments for Data Assimilation: Software and Applications, Deltares, Delft, Netherlands, January 31, 2011. [http://epic.awi.de/Publications/Ner2010a.pdf Scalable sequential data assimilation with the Parallel Data Assimilation Framework PDAF],[[BR]] 2010 Ocean Sciences Meeting, Portland, Oregon, February 20-26, 2010. [http://epic.awi.de/Publications/Ner2008d.pdf Sequential data assimilation on high-performance computers with the Parallel Data Assimilation Framework],[[BR]] 13th ECMWF Workshop on High Performance Computing in Meteorology, Reading, UK, November 3-7, 2008. [http://epic.awi.de/Publications/Ner2004g.pdf PDAF - The Parallel Data Assimilation Framework: Experiences with Kalman Filtering],[[BR]] 11th ECMWF Workshop on Use of High Performance Computing in Meteorology, Reading, UK, October 25-29, 2004. == Publications about PDAF == Nerger, L., Hiller, W. (2012). Software for Ensemble-based Data Assimilation Systems - Implementation Strategies and Scalability. Computers and Geosciences. In press. [http://dx.doi.org/10.1016/j.cageo.2012.03.026 doi:10.1016/j.cageo.2012.03.026] ([http://pdaf.awi.de/files/Scalability_PDAF.pdf accepted manuscript]) Nerger, L., Hiller, W., 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; George Mozdzynski, Singapore: World Scientific, 63-83. == Publications involving PDAF == === 2012 === Nerger, L., Janjić, T., Schröter, J., Hiller, W. (2012). A unification of ensemble square root Kalman filters. Monthly Weather Review, '''140''', 2335-2345. [http://dx.doi.org/doi:10.1175/MWR-D-11-00102.1 doi:10.1175/MWR-D-11-00102.1] Nerger, L., Janjić, T., Schröter, J., Hiller, W. (2012). A regulated localization scheme for ensemble-based Kalman filters. Quarterly Journal of the Royal Meteorological Society, 138, 802-812. ([http://dx.doi.org/doi:10.1002/qj.945 doi:10.1002/qj.945]) Janjić, T., Schröter, J., Savcenko, R., Bosch, W., Albertella, A., Rummel, R., Klatt, O. (2012). Impact of combining GRACE and GOCE gravity data on ocean circulation estimates. Ocean Science, 8, 65-79 )[http://dx.doi.org/doi:10.5194/os-8-65-2012 doi:10.5194/os-8-65-2012]) === 2011 === Janjić, T., Nerger, L., Albertella, A., Schröter, J., Skachko, S. (2011). On domain localization in ensemble based Kalman filter algorithms. Monthly Weather Review, 139, 2046-2060 ([http://dx.doi.org/10.1175/2011MWR3552.1 doi:10.1175/2011MWR3552.1]). Janjic Pfander, T., Schröter, J., Albertella, A., Bosch, W., Rummel, R., Savcenko, R., Schwabe, J., Scheinert, M. (2011). Assimilation of geodetic dynamic ocean topography using ensemble based Kalman filter. Journal of Geodynamics. in press. ([http://dx.doi.org/10.1016/j.jog.2011.07.001 doi:10.1016/j.jog.2011.07.001]) === 2009 === Rollenhagen, K., Timmermann, R., Janjic, T., Schröter, J., Danilov, S.(2009). Assimilation of sea ice motion in a Finite Element Sea Ice Model, Journal of Geophysical Research, 114, C05007, [http://dx.doi.org/10.1029/2008JC005067 doi:10.1029/2008JC005067]. === 2008 === Skachko, S., Danilov, S., Janjic, T., Schröter, J., Sidorenko, D., Savcenko, R., Bosch, W.(2008). Sequential assimilation of multi-mission dynamical topography into a global finite-element ocean model, Ocean Science, 4, 307-318, http://www.ocean-sci.net/4/307/2008/os-4-307-2008.html. Nerger, L., 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) 87-102, [http://dx.doi.org/10.1016/j.jmarsys.2007.09.007 doi:10.1016/j.jmarsys.2007.09.007]. === 2007 === Nerger, L., Gregg, W. W.(2007). Assimilation of SeaWiFS data into a global ocean-biogeochemical model using a local SEIK Filter, Journal of Marine Systems, 68, 237-254, [http://dx.doi.org/10.1016/j.jmarsys.2006.11.009 doi:10.1016/j.jmarsys.2006.11.009]. Nerger, L., Danilov, S., Kivman, G., Hiller, W., 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(1/4), 288-298., [http://dx.doi.org/10.1016/j.jmarsys.2005.06.009 doi:10.1016/j.jmarsys.2005.06.009]. === 2006 === Nerger, L., Danilov, S., Hiller, W., Schröter, J.(2006). Using sea-level data to constrain a finite-element primitive-equation ocean model with a local SEIK filter, Ocean Dynamics, 56(5/6), 634-649., [http://dx.doi.org/10.1007/s10236-006-0083-0 doi:10.1007/s10236-006-0083-0]. === 2005 === Nerger, L., Hiller, W., Schröter, J.(2005). A Comparison of Error Subspace Kalman Filters, Tellus series A-Dynamic Meteorology and Oceanography, 57A(5), 715-735, [http://dx.doi.org/10.1111/j.1600-0870.2005.00141.x doi:10.1111/j.1600-0870.2005.00141.x]. === 2004 === Nerger, L.(2004). Parallel Filter Algorithms for Data Assimilation in Oceanography, PhD Thesis, University of Bremen, 2004 ([http://www.awi.de/en/infrastructure/library/awi_periodicals/reports_on_polar_and_marine_research/ Reports on Polar and Marine Research], 487, 174 pp.)