Dry-falling streams

The water network of dry-falling rivers serves to record and maintain the list of waters in Lower Saxony in accordance with Section 58(1) of the Lower Saxony Water Act (NWG) of 11.11.2020 (Nds. GVBl No 43/2020), which are regularly water-bearing less than six months a year. The water network is based on the digital terrain model (basic DLM) of the Landesamt für Geoinformation und Landesvermessung Niedersachsen (LGLN) with the current date indicated on the water sections. For the modelling of the water network, the data delivery products “GEW01” and “GEW03” were combined and attributively supplemented in order to have a line-shaped water network also available for modelling purposes. Additional fields have been added to add updates.GEW01 – The object type group with the designation “waters” and the identifier “44000” covers the areas covered with water. The attributes of the composite objects (so) of the object types AX_watercourse (44002) or AX_channel (44003) are attached directly to the corresponding space-related elementary objects (REO) of the object types AX_waesser axis (44004) or AX_Fliessgewaesser (44001). A water stationing axis is a line defined by a water substation in waters. It comprises the following types:- Water axis of the Water and Shipping Administration (WSV) is a geometry which has been taken over unchanged from the documents of the WSV.- Sewed middle line in waters comply with the specifications of the directive on territorial and water encryption of the Länderarbeitsgemeinschaft Wasser (LAWA).- Fictive connection in lakes and ponds is a hydrologically useful connection line in standing waters, which is required for the establishment of a closed topological water network.- Fictive connection in lakes and ponds is a hydrological linkage in standing waters, which is required for the construction of a closed topological water network. This information has been attributively incorporated into the database.