Some of the available output items are calculated as part of another process. For example, the depth of overland water is calculated based on seepage to and from the groundwater and as part of the MIKE Hydro River surface water calculations, even if the overland flow is not directly simulated.
Furthermore, some of the output items require that more than one process be simulated. For example, the leaf area index is only available if both evapotranspiration and unsaturated flow are calculated.
In the absence of an explicit remark, the sign convention for MIKE SHE’s output is positive in the positive direction. In other words, all flows in the direction of increasing X, Y and Z coordinates are positive. Thus, vertical downward flows, such as infiltration are negative.
Flows that do not have a direction are positive if storage or outflow is increasing. Thus, all flows leaving the model are positive, and water balance errors are positive if the model is generating water.
Also important to remember is that the output items related to flow are accumulated over the storing time step. In many cases, these values are required for the Water Balance program described in the section Using the Water Balance Tool (V1 p. 95). The values that are part of the water balance are automatically turned on when the water balance option is selected.
However, the output items that are not flows, such as temperature, water depth and Courant number represent the instantaneous value at the end of the storing time step.
Finally, some of the output items are actually input items. For example, precipitation is usually input as a time series for several polygons or grid code areas. The output file is a fully distributed dfs2 version of the input time series files.
The available output items for gridded data and time series data are listed in Appendix A.1 MIKE SHE Output Items (p. 781).
Note The Code listed in the tables in Appendix A.1 MIKE SHE Output Items (p. 781) is the Data Type Code that is needed when importing time series items into the Detailed WM time series output (V1 p. 338) dialogue.
