The six Active Sections are:
ATMP - temperature correction for elevation difference
SNOW - simulate accumulation and melting of snow and ice
IWAT - simulate water budget for an impervious land segment
SLD - simulate accumulation and removal of solids
IWG - estimate water temperature and dissolved gas concentrations
IQAL - simulate washoff of quality constituents
As active sections are turned on or off, the lists in the Tables tab change to reflect the tables applicable to the active sections. The four lists in the Tables tab show the required tables that are present, the optional tables that are present, the required tables that are missing, and the optional tables that are missing. The user may add a table by selecting the table name in the list and clicking the Add button. The user may remove a table by selecting the table name and clicking the Remove button. Similarly, the user may edit a table by selecting the table name and clicking the Edit button, or by double-clicking the table name. The resulting Edit Table window allows the user to edit the table parameters in a grid.