The Basis-DLM is a digital landscape model delivered as a feature type structured, topographic vector dataset. It is part of ATKIS. ATKIS is the landscape specifying Geographical Information System (GIS) of the German national survey and represents the »Authoritative topographic cartographic information system«. This paper introduces two use cases for the Basis-DLM in the context of the German Greenhouse Gas Inventory contributed by the Thünen Institute of Climate-Smart Agriculture. The basis for the German Greenhouse Gas Inventory includes a consistent time series of annual area sums for land use and land use change in Germany from 1990 to the present. As from the year 2000 the Basis-DLM is the most important dataset for this time series. The second example presents the large-scale regionalization of water table depth in German peatlands (Bechtold et al. 2014, HESS). These results rely on the Basis-DLM as well.