Sven Frei: Vorträge, Poster...
| Eingeladene Vorträge | ||
| Vorkommen und Verhalten von Mikroplastik in fränkischen Flüssen und Seen | Frei, S | Bayreuther Kontaktstudium Geographie, Bayreuth: 06.02.2020 - 07.02.2020 |
| Vorkommen und Verhalten von Mikroplastik in Flüssen und Seen | Frei, S* | Naturwissenschaftliche Geselllschaft Bayreuth e.V.: 11.02.2019 |
| A multi-disciplinary approach to delineate small scale interactions and couplings between hydrology and biogeochemistry in riparian wetlands | Frei, S* | Workshop on Hydrology and Ecohydrology-Tracer tecniques and Modeling, Nanjing, China: 12.10.2017 |
| Hydrological controlled Hot Spots Generation Mechanisms within a wetland with micro-topography: A modelling approach | Frei, S | National Centre for Groundwater Research and Training, Flinders University: 12.09.2014 |
| Hydrologically controlled generation of reactivity hot spots within a wetland with micro-topography: A modeling approach | Frei, S*; Knorr, KH; Peiffer, S; Fleckenstein, JH | Research Seminar at the Dept. of Hydrogeology, UFZ Leipzig: 15.02.2012 |
| Complex linkages between hydrological dynamics and biogeochemical processes in the near stream zone - new ways forward | Fleckenstein, JH*; Frei, S; Bartsch, S; Schmidt, C | Hydroeco 2011, Wien: 02.05.2011 - 05.05.2011 |
| Die Bedeutung der hydrologischen Verweilzeit für das biogeochemische Prozessgeschehen in Niedermooren. | Frei, S*; Fleckenstein, JH; Knorr, KH; Peiffer, S | Jahrestagung der Wasserchemischen Gesellschaft 2010, Bayreuth: 10.05.2010 - 12.05.2010 |
| Effects of micro-topography on runoff generation and residence times in a riparian wetland | Fleckenstein, JH; Frei, S | Research Seminar Series, US Geological Survey, Menlo Park, Water Resources Division, Menlo Par, CA, USA: 11.09.2009 |
| Simulating river-aquifer exchange - the missing scale | Fleckenstein, JH; Frei, S; Niswonger, RG | National Meeting of the British Hydrological Society (BHS), University of Birmingham: 17.12.2008 |
| Vorträge | ||
| Analytical Modeling of Hyporheic Flow for In-stream Bedforms: Perturbation Method and Implementation. | Frei, S*; Azizian, A; Grant, S; Zlotnik, V; Toundykov, D | Computational Methods in Water Resources (CMWR) 2018, Saint-Malo: 03.06.2018 - 07.06.2018 |
| Quantifying nitrate and oxygen reduction rates in the hyporheic zone using 222Rn to upscale biogeochemical turnover in rivers | Frei, S*; Pittroff, M; Gilfedder, B | EGU General Assembly 2017, Vienna: 23.04.2017 - 28.04.2017 |
| River-groundwater connectivity and nutrient dynamics in a mesoscale catchment | Fleckenstein, JH*; Wankmüller, F; Frei, S; Gilfedder, B | EGU General Assembly 2017, Vienna: 23.04.2017 - 28.04.2017 |
| DOC export dynamics and DOC quality during discharge events to identify sources, flow paths, and controls | Knorr, KH; Frei, S; Reichert, M; Peiffer, S | BIOGEOMON 2012:The 7th International Symposium on Ecosystem Behavior: 15.07.2012 - 20.07.2012 |
| Surface micro-topography can cause hot spots of biogeochemical activity in wetland systems: a modeling approach | Frei, S*; Knorr, KH; Peiffer, S; Fleckenstein, J | Biogeomon 2012, Northport Maine: 15.07.2012 - 20.07.2012 |
| Surface micro-topography can cause hot spots of biogeochemical activity in wetland systems: a modeling approach | Frei, S*; Knorr, KH; Peiffer, S; Fleckenstein, J | BIOGEOMON 2012:The 7th International Symposium on Ecosystem Behavior: 15.07.2012 - 20.07.2012 |
| Surface micro-topography causes hot-spots of biogeochemical activity in a wetland system | Frei, S*; Knorr, KH; Peiffer, S; Fleckenstein, J | Hydroeco 2011, Wien: 02.05.2011 - 05.05.2011 |
| Representing small scale runoff generation and subsurface flow patterns, influenced and induced by micro-topography, on a coarser scale using superficial rill storage height variations. | Frei, S*; Fleckenstein, JH | 2nd International Hydrogeosphere User Conference 2011, Hannover: 11.04.2011 - 13.04.2011 |
| The impact of monsoon events on water fluxes in a ridge cultivation system: A modeling approach using HydroGeoSphere | Ruidisch, M*; Frei, S; Bartsch, S; Huwe, B | 2nd International Hydrogeosphere User Conference 2011, Hannover: 11.04.2011 - 13.04.2011 |
| Die Bedeutung der hydrologischen Verweilzeit für das biogeochemische Prozessgeschehen in Niedermooren | Frei, S*; Fleckenstein, JH; Peiffer, S; Knorr, KH | DGL 2010, Bayreuth: 27.09.2010 - 01.10.2010 |
| Effects of micro-topography on runoff generation and bio-geochemistry for a riparian wetland in South-East Germany | Frei, S*; Fleckenstein, JH | Hydrogeosphere users in Europe, Liège, Belgium: 25.03.2010 - 26.03.2010 |
| Dynamik des Oberflächen-Grundwasseraustausches, Abflussbildung, und Verweilzeiten in einem Niedermoor mit Mikrotopographie | Fleckenstein, JH; Frei, S; Peiffer, S; Lischeid, G | Tag der Hydrologie, TU Braunschweig, Braunschweig: 25.03.2010 - 26.03.2010 |
| Mikrotopographie induzierte Dynamik des Oberflächen- Grundwasseraustausches: Bedeutung für biogeochemische Prozessmuster | Frei, S; Lischeid, G; Fleckenstein, JH | Auftaktworkshop Hyporheisches Netzwerk, Berlin: 14.12.2009 - 15.12.2009 |
| Effects of micro-topography on flow connectivity, surface-subsurface exchange and runoff generation in a riparian wetland | Fleckenstein, JH; Frei, S | American Geophysical Union (AGU), Fall Meeting, San Francisco, San Francisco: 14.12.2009 - 18.12.2009 |
| Floodplain Recharge and Subsurface Storage of Water | Sager, J; Frei, S; Fogg, GE; Fleckenstein, JH; Meirovitz, C; Roll, L | GSA Annual Meeting, Portland: 18.10.2009 - 21.10.2009 |
| Dynamik von Fluss-Grund¬wasserinteraktionen in geologisch heterogenen Systemen mit ungesättigter Strömung | Fleckenstein, JH; Frei, S; Kollet, S; Maxwell, R | FH-DGG Tagung, Göttingen: 19.05.2008 - 22.05.2008 |
| How important is geologic Heterogeneity in River-Aquifer Exchange ? | Fleckenstein, JH; Niswonger, RG; Frei, S; Kollet, S; Maxwell, RM; Fogg, GE | EGU General Assembly, Vienna: 16.05.2007 - 20.05.2007 |
| Poster | ||
| Analyses of Hyporheic Flow and Nitrate Removal for In-stream Bedforms using Perturbation Method | Frei, S* | EGU General Assembly 2017, Vienna: 23.04.2017 - 28.04.2017 |
| Spectral induced polarization as a tool to map subsurface biogeochemical hot spots: a first laboratory evaluation in the Fe-S system | Nordsiek, S*; Frei, S; Gilfedder, B | EGU General Assembly 2017, Vienna: 23.04.2017 - 28.04.2017 |
| Runoff Generation, Residence Time & Dynamics of Surface/Sub-Surface Exchange in a Wetland with Micro-topography -a Modeling Study. | Frei, S*; Knorr, KH; Fleckenstein, JH; Peiffer, S | DyCap Workshop "Microbiology and Reactive Transport in the Capillary Fringe" (October 7-8, 2010), Heidelberg: 07.10.2010 - 08.10.2010 |
| Runoff Generation, Residence Times & Dynamics of Surface/Sub-Surface Exchange in a Wetland with Micro-topography - a Modeling Study | Frei, S*; Fleckenstein, JH; Peiffer, S; Knorr, KH; Lischeid, G | FHDGG Jahrestagung 2010, Tübingen: 12.05.2010 - 15.05.2010 |
| Effects of Riparian Water Table Depth and Microtopography on Stream Discharge Generation | Frei, S; Lischeid, G; Fleckenstein, JH | European Geosciences Union General Assembly 2009, Vienna: 19.04.2009 - 24.04.2009 |
| Using a parallel Surface-Subsurface Flow Model to asses the Effects of geologic Heterogeneity on River-Auqifer Exchange | Frei, S; Kollet, S; Maxwell, RM; Fleckenstein, JH | EGU General Assembly, Vienna: 15.04.2007 - 20.04.2007 |
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