gully erosion modelling

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Discretization approaches in erosion modelling to describe and subdivide a catchment distributed modelling units Catchment is divided into subunits which can be characterized specifically Process dynamics within the catchment can be simulated more accurately distributive approach: • allows the process based characterization of erosion dynamics on larger spatial scales • allows the application of modular modelling systems such like WEPP; LISEM INWAMA Beijing 06.06.2006
Regionalization and model coupling raster based approach allows the application of GIS each raster cell can be seen as a separate modelling unit Fix resolution: physiographic heterogeneity is sometimes not considered correctly INWAMA Beijing 06.06.2006
Page 1 and 2: 23.06.2006 Bejing Response Units
Page 3 and 4: Conceptual model of aquatic erosion
Page 5 and 6: Dilemma: Parameterization of erosio
Page 7: Discretization approaches in erosio
Page 11 and 12: Aquatic erosion processes and forms
Page 13 and 14: Application of ERUs to identify the
Page 15 and 16: Delineation of reference units by s
Page 17 and 18: Derived ERU sequence by overlay ana
Page 19 and 20: Delineation and Regionalisation of
Page 21 and 22: INWAMA Beijing 06.06.2006
Page 23 and 24: Modelling Structure (E)RU modelling
Page 25 and 26: Mittel 8,1 to/ ha * Jahr Mittel 10,
Page 27 and 28: gully modelling initial phase stati
Page 29 and 30: gully erosion modelling gully devel
Page 31 and 32: static gully erosion model static g
Page 33 and 34: INWAMA Beijing 06.06.2006
Page 35 and 36: Gully survey and Planicomp stereosc
Page 37 and 38: Results of gully erosion modeling
Page 39 and 40: 1990 2020 2050 2080 2110 1960 29150
Page 41 and 42: Integration of distributed erosion
Page 43: Map of accumulated sediments along

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