Structural data, including points, lines and polygons, can contain additional data details (attributes, description of data types) beyond their inherent geometric information. A distinction is made between:

• Point structures (zero-dimensional geometry)

• Line structures (one-dimensional geometry)

• Surface structures (two-dimensional geometry)

Structure types

Using these structure types and assigning all the corresponding information allows all the data required for a groundwater model to be included, for example:

• Point structures:

• Coordinates of abstraction or injection wells

• Coordinates of groundwater observation points, including groundwater elevations

• Line structures

• Watercourse systems, including the elevation of water in the watercourse and leakage coefficients or ex-/Infiltration volumes

• Construction pit enclosure (sheet piling or sealing walls)

• Trenches, tunnels, navigation/shipping channels

• Sewerage and drainage systems

• Surface structures

• Areas of varying groundwater recharge

• Areas with different soil characteristics or hydraulic parameters

• Surface bodies of water (lakes or ponds) with and without overflow

• Seepage basins with infiltration volume

The structures ( INCLUDEPICTURE \d ".\\grafik\\structures_selected.png" \* MERGEFORMATINET INCLUDEPICTURE \d "C:\\Projekte\\SPRING-Hilfe_Englisch\\Getting_started\\grafik\\structures_selected.png" \* MERGEFORMATINET INCLUDEPICTURE \d "C:\\Projekte\\SPRING-Hilfe_Englisch\\Getting_started\\grafik\\structures_selected.png" \* MERGEFORMATINET INCLUDEPICTURE \d "C:\\Projekte\\SPRING-Hilfe_Englisch\\Getting_started\\grafik\\structures_selected.png" \* MERGEFORMATINET INCLUDEPICTURE \d "C:\\Projekte\\SPRING-Hilfe_Englisch\\Getting_started\\grafik\\structures_selected.png" \* MERGEFORMATINET INCLUDEPICTURE \d "C:\\Projekte\\SPRING-Hilfe_Englisch\\Getting_started\\grafik\\structures_selected.png" \* MERGEFORMATINET INCLUDEPICTURE \d "C:\\Projekte\\SPRING-Hilfe_Englisch\\Getting_started\\grafik\\structures_selected.png" \* MERGEFORMATINET INCLUDEPICTURE \d "C:\\Projekte\\SPRING-Hilfe_Englisch\\Getting_started\\grafik\\structures_selected.png" \* MERGEFORMATINET INCLUDEPICTURE \d "C:\\Projekte\\SPRING-Hilfe_Englisch\\Getting_started\\grafik\\structures_selected.png" \* MERGEFORMATINET INCLUDEPICTURE \d "C:\\Projekte\\SPRING-Hilfe_Englisch\\Getting_started\\grafik\\structures_selected.png" \* MERGEFORMATINET ) can be created directly on the screen (e.g. based on a topographical map) or imported from existing ASCII files (e.g. *.txt, *.csv, ARC/INFO-Generate-format or *.dxf). The structure menu also offers extensive editing tools.

Contours