Comparing model sensitivities of different landscapes using the ecohydrological SWAT model

• DOI: 10.5194/adgeo-21-91-2009
• Publication Date: 2010-04-29T11:36:17Z
• Authors: B. Schmalz; N. Fohrer
• Keywords: Base flow; SWAT model

Abstract. Lowland areas are characterised by specific properties, such as flat topography, low hydraulic gradients, shallow groundwater, and high potential for water retention in peatland lakes. The investigated mesoscale catchments Stör, Treene Kielstau located Northern Germany within lowland areas. Covering from 50 to 517 km2, these rural have sandy, loamy peaty soils drained fraction open ditches tile drainage. Using the river basin model SWAT, sensitivity analyses were carried out through an automatic routine that is based on Latin-Hypercube (LH) a One-factor-At-a-Time (OAT) sampling. objective of this study investigate how landscape features influence behaviour. There two research questions: a) What most sensitive parameters studied catchments? b) differences occur between comparison mountainous or mountain range results show groundwater soil found be they turned influential factors simulated discharge. parameter was threshold level aquifer baseflow (GWQMN). In contrast, many studies surface runoff parameters.