Water Quality Layers and Layer Properties

Map schematic layers in ResSim function like separate transparencies, each representing different map components (e.g., rivers, subbasins, stream gage locations) stacked on top of one another. All map schematic elements (such as common computation points, stream alignments) and imported map layers (e.g., shapefiles, .shp) that are available for display in the map schematic area are listed in the Layer Selector (Water Quality Module – View Menu – Layers Command).

The list of layers varies depending on the selected module (e.g., Water Quality module) and module data (e.g., GeometryData1, Geometry dataset in Water Quality Module – View Menu – Layers Command). For instance, in the Watershed Setup module, Study layers including water quality stations are listed. In contrast, in the Water Quality module, the Study layers are not listed; instead, layers for water quality components (for selected module data) are shown, such as Observed Dataset, Met Dataset, Geometry, Mass Injection, HEC-RAS imported Cross Sections, and ResSim. The concept of layers in ResSim is described in greater detail in Chapter 4 of the HEC-ResSim User's Manual.