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At the end of the module, students are able to understand the transfer of process flows from natural hydrologic- and nutrient cycles to an ecohydrological software-model. In addition to that they will be able to understand different methods for the calculation of single components of ecohydrological cycles and their interplay. Moreover students will be able to use an ecohydrological model and to analyse model outputs. The students will be able to identify different influencing factors and to evaluate the meaningfulness of model results.

The main goal in this module is to give an comprehensive overview in the main aspects of ecohydrological modeling. Structure and interaction of different components of an ecohydrological model will be explained as well as associated calculation methods. Water quality aspects and influencing factors from land use and land management practices will be discussed. Moreover legal foundations within the German law and the European Water Framework Directive will be presented. In addition to lectures, students will apply their theoretical knowledge in guided exercises. Using an ecohydrological software model (SWAT) they will setup, calibrate and validate a model for a real catchment.

Good skills in GIS software (QGIS). Basics of programming in Python.

Exercises in computer lab.

The Assessment will be divided in two parts. In the first part the Student has to write a small document in which the resulting model, including input and results is described at the end of the term. The second part is a written exam. Both have to be fulfilled to receive the credits.

Neitsch, S., J. Arnold, J. Kiniry, and J. Williams (2011). Soil and water assessment tool- theoretical documentation version 2009. Report, Grassland, Soil andWater Research Laboratory - Agricultural Reserach Service, Blackland Research Center - Texas AgriLife Research. Winchell, M., R. Srinivasan, M. diLuzio, and J. Arnold (2007). ArcSWAT Interface for SWAT2005 - User’s Guide. http://www.geology.wmich.edu/sultan/5350/Labs/ArcSWAT_ Documentation.pdf: Blackland Research Center and Grassland, Soil and Water Research Laboratory (USDA Agricultural Research Service) Arnold, J., J. Kiniry, R. Srinivasan, J. Williams, E. Haney, and S. Neitsch (2011). Soil and Water Assessment Tool- Input/Output File Documentation Version 2009. http://swat.tamu. edu/media/19754/swat-io-2009.pdf: Grassland, Soil and Water Research Laboratory Agricultural Reserach Service, Blackland Research Center Texas AgriLife Research.