1. Modeling the Dynamics of River-Groundwater Interaction: Experiences from own Case Studies Prof. Dr. Manfred Koch Department of Geohydraulics and Engineering Hydrology University of Kassel kochm@uni-kassel.de http://www.uni-kassel.de/fb14/geohydraulik/Welcome.html

2. Overview 1. Basic concepts of surface-groundwater interactions (S-GW-I) 2.Computational tools for Design and Evaluation of Conjunctive Use Systems 3. Case studies of CWRM 4. Conclusions

3. 1. Basic concepts of surface-groundwater interactions (S-GW-I) The hydrological cycle and its surface Implementation of surface-groundwater interaction and groundwater components in HSPF/MODFLOW

4. 1. Basic concepts of surface-groundwater interactions (S-GW-I)

6. Example from a Florida Case Study

7. 1. Basic concepts of surface-groundwater interactions (S-GW-I) Example from a Florida Case Study

8. 1. Basic concepts of surface-groundwater interactions (S-GW-I)

11. 1. Basic concepts of surface-groundwater interactions Example of a Florida Case Study

12. 2. Computational Tools for Design and Evaluation of Conjunctive Use Systems General principle of coupling between surface- and groundwater model

13. 2. Compuational Tools for Design and Evaluation of Conjunctive Use Systems Evaluation of some common CWRM models (ISGW/CNTB model, Florida) (ISGW/CNTB model, Florida)

14. 2. Computational Tools for Design and Evaluation of Conjunctive Use Systems Evaluation of some common CWRM models (ISGW/CNTB model, Florida) (ISGW/CNTB model, Florida)

15. 2. Computational Tools for Design and Evaluation of Conjunctive Use Systems The Soil Water Assessment Tool (SWAT)-model

16. 2. Computational Tools for Design and Evaluation of Conjunctive Use Systems The Soil Water Assessment Tool (SWAT)-model: Calibration approach

17. 2. Computational Tools for Design and Evaluation of Conjunctive Use Systems Example of application of (SWAT)-model (Kassel research catchment)

18. 2. Computational Tools for Design and Evaluation of Conjunctive Use Systems Example of application of (SWAT)-model (Kassel research catchment)

19. 2. Computational Tools for Design and Evaluation of Conjunctive Use Systems Example of application of (SWAT)-model (Elbe catchment)

20. 3. Case Studies of CWRM Effects of Global Climatic Change on water resources in the Elbe basin

21. 3. Case Studies of CWRM Application of SWAT to compute the effects of long-term precipitation variations on discharge regimes in the Elbe basin digital elevation model soil distribution land use

22. - Florida Simulation of Groundwater Recharge in the Tampa Bay Area (Modflow/HSPF) 3. Case Studies of CWRM GW inflow 0.9 in Net recharge 4.4. in Bay inflow 12. ET