Geophysical Research Abstracts
Vol. 17, EGU2015-15915, 2015
EGU General Assembly 2015
© Author(s) 2015. CC Attribution 3.0 License.
LAPSUS: soil erosion - landscape evolution model
Wouter van Gorp, Arnaud Temme, and Jeroen Schoorl
Soil Geography and Landscape Group, Wageningen University (Wouter.vangorp@wur.nl, Arnaud.temme@wur.nl,
Jeroen.schoorl@wur.nl)
LAPSUS is a soil erosion – landscape evolution model which is capable of simulating landscape evolution of a
gridded DEM by using multiple water, mass movement and human driven processes on multiple temporal and
spatial scales. It is able to deal with a variety of human landscape interventions such as landuse management
and tillage and it can model their interactions with natural processes. The complex spatially explicit feedbacks
the model simulates demonstrate the importance of spatial interaction of human activity and erosion deposition
patterns. In addition LAPSUS can model shallow landsliding, slope collapse, creep, solifluction, biological and
frost weathering, fluvial behaviour. Furthermore, an algorithm to deal with natural depressions has been added and
event-based modelling with an improved infiltration description and dust deposition has been pursued. LAPSUS
has been used for case studies in many parts of the world and is continuously developing and expanding. it is now
available for third-party and educational use. It has a comprehensive user interface and it is accompanied by a
manual and exercises. The LAPSUS model is highly suitable to quantify and understand catchment-scale erosion
processes. More information and a download link is available on www.lapsusmodel.nl.