Grundwassermanagementplan für Stuttgart

Surrogate‐Model Assisted Plausibility‐Check, Calibration, and Posterior‐Distribution Evaluation of Subsurface‐Flow Models

“…Each unit uses a set of uniform material properties. The lithostratigraphic units considered in this model are (from bottom to top): Erfurt formation (kuE): Bedrock unit of about 20 m thickness composed of thin sandstone and claystone layers containing dolomite beds and carbonate banks (Geyer & Gwinner, 2011; Hagdorn & Nitsch, 2009; Kirchholtes & Ufrecht, 2015). Grabfeld formation (kmGr): Bedrock mudstone unit of up to 100 m thickness bearing gypsum, anhydrite and claystones (Geyer & Gwinner, 2011; Kleinert, 1976).…”

“…Grabfeld formation (kmGr): Bedrock mudstone unit of up to 100 m thickness bearing gypsum, anhydrite and claystones (Geyer & Gwinner, 2011; Kleinert, 1976). Weathering zone of Grabfeld formation: As the gypsum‐rich rocks of the Grabfeld formation are prone to weathering (Kirchholtes & Ufrecht, 2015; Ufrecht, 2017), we include a weathering zone in the upper parts of the formation. Lumped sand‐ and mudstone formations (km2345): Summarized bedrock sandstone units that only exist on hills in the domain. These are the Stuttgart, Steigerwald, Hassberge, Mainhardt, Löwenstein, and Trossingen formations according to the official nomenclature of the German Geological Survey. Hillslope hollows: Colluvial hillslope fillings on the northern and southern flanks of the Ammer valley that reach thicknesses around 10 m (Martin et al., 2020).…”

“…Erfurt formation (kuE): Bedrock unit of about 20 m thickness composed of thin sandstone and claystone layers containing dolomite beds and carbonate banks (Geyer & Gwinner, 2011; Hagdorn & Nitsch, 2009; Kirchholtes & Ufrecht, 2015).…”

“…Weathering zone of Grabfeld formation: As the gypsum‐rich rocks of the Grabfeld formation are prone to weathering (Kirchholtes & Ufrecht, 2015; Ufrecht, 2017), we include a weathering zone in the upper parts of the formation.…”