Dr. Sebastian Grayek

Hydrodynamik und Datenassimilation
Wissenschaftler
Tel: +49 (0) 4152 87-1504
Fax: +49 (0) 4152 87-41504
E-Mail Kontakt

  • Reseach interest: Develop and evaluate methods and concepts for the modelling and monitoring of the coastal marine environment. This includes the research and development in the fields of Earth System Models, numerical model coupling, data assimilation, observation system evaluation and observation system simulation experiments.
  • Current Projects PACES 2 (Topic 4; WP1): Operational analyses and forecasting

Research

Since 2015 Junior Researcher in the Institute for Coastal Research at the Helmholtz-Zentrum Geesthacht Centre for Materials and Coastal Research (HZG); Projects: PACES 2 (Topic 4; WP1): Operational analyses and forecasting

2012-2015 Junior Researcher Researcher in the Institute for Coastal Research at the Helmholtz-Zentrum Geesthacht Centre for Materials and Coastal Research (HZG); Project: MyOcean 2 (WP19.2)

2010-2012 Junior Researcher in the Institute for Chemistry and Biology of the Marine Environment (ICBM) of the University of Oldenburg; Project: WIMO (Wissenschaftliche Monitoringkonzepte für die Deutsche Bucht, ‘Monitoring Concepts for the German Bight‘)

2008-2009 Junior Researcher in the Institute for Coastal Research at the Helmholtz-Zentrum Geesthacht Centre for Materials and Coastal Research (HZG); Project: COSYNA (Coastal Observing System for Northern and Arctic)

2006-2010 Junior Researcher Scientist in the Institute for Chemistry and Biology of the Marine Environment (ICBM) of the University of Oldenburg; Project: Spatial and Temporal Resolution Limits for Regional Mass Transport and Mass Distribution (STREMP)

Education

2011 PhD in Marine Environmental Science; University of Oldenburg, Institute for Chemistry and Biology of the Marine Environment (ICBM), Oldenburg, Germany; Thesis: Data Assimilation in European Regional and Coastal Seas (Black Sea and German Bight).

2006 Diploma in Marine Environmental Science; University of Oldenburg, Institute for Chemistry and Biology of the Marine Environment (ICBM), Oldenburg, Germany; Thesis: Feeding Behavior of Dinoflagellates at the Helgoland Reede during the Spring Bloom 2005

  • Stanev, E. V., Grayek, S., Claustre, H., Schmechtig, C., Poteau, A. (2017). Water intrusions and particle signatures in the Black Sea: a Biogeochemical-Argo float investigation. Ocean Dynamics, 67(9), 1119-1136
  • Stanev, E. V., Schulz-Stellenfleth, J., Staneva, J., Grayek, S., Grashorn, S., Behrens, A., Pein, J. (2016). Ocean forecasting for the German Bight: from regional to coastal scales. Ocean Science, 12(5), 1105
  • Pein, J. U., Grayek, S., Schulz-Stellenfleth, J., Stanev, E. V. (2016). On the impact of salinity observations on state estimates in Ems Estuary. Ocean Dynamics, 66(2), 243-262
  • Grayek, S., Stanev, E. V., Schulz-Stellenfleth, J. (2015). Assessment of the Black Sea observing system. A focus on 2005-2012 Argo campaigns. Ocean Dynamics, 65(12), 1665-1684
  • Stanev, E. V., He, Y., Grayek, S., Boetius, A. (2013). Oxygen dynamics in the Black Sea as seen by Argo profiling floats. Geophysical Research Letters, 40(12), 3085-3090
  • Aus der Beek, T., Menzel, L., Rietbroek, R., Fenoglio-Marc, L., Grayek, S., Becker, M., Stanev, E. V. (2012). Modeling the water resources of the Black and Mediterranean Sea river basins and their impact on regional mass changes. Journal of Geodynamics, 59, 157-167
  • Sperling, M., Giebel, H. A., Rink, B., Grayek, S., Staneva, J., Stanev, E., Simon, M. (2012). Differential effects of hydrographic and biogeochemical properties on the SAR11 clade and Roseobacter RCA cluster in the North Sea. Aquatic microbial ecology, 67(1), 25-34
  • Fenoglio-Marc, L., Rietbroek, R., Grayek, S., Becker, M., Kusche, J., Stanev, E. (2012). Water mass variation in the Mediterranean and Black Seas. Journal of Geodynamics, 59, 168-182
  • Stanev, E. V., Schulz-Stellenfleth, J., Staneva, J., Grayek, S., Seemann, J., Petersen, W. (2011). Coastal observing and forecasting system for the German Bight–estimates of hydrophysical states. Ocean Science, 7(5), 569-583
  • Grayek, S., Staneva, J., Schulz-Stellenfleth, J., Petersen, W., & Stanev, E. V. (2011). Use of FerryBox surface temperature and salinity measurements to improve model based state estimates for the German Bight. Journal of Marine Systems, 88(1), 45-59
  • Grayek, S., Stanev, E. V., Kandilarov, R. (2010). On the response of Black Sea level to external forcing: altimeter data and numerical modelling. Ocean dynamics, 60(1), 123-140
  • Stanev, E. V., Dobrynin, M., Pleskachevsky, A., Grayek, S., Günther, H. (2009). Bed shear stress in the southern North Sea as an important driver for suspended sediment dynamics. Ocean Dynamics, 59(2), 183-194
  • Stanev, E. V., Grayek, S., Staneva, J. (2009). Temporal and spatial circulation patterns in the East Frisian Wadden Sea. Ocean dynamics, 59(2), 167-181