Storage Curve Data Fields (SWMM)

A SWMM storage curve is used to define how the surface area of a tabular type of storage node varies with water depth.

Information relating to a storage curve can be viewed and edited on the Storage Curve Grid Window of the Nodes Grid or on the Storage Curve Property Sheet.

Most data can be edited on the grid, but some fields cannot be displayed in the grid format.

To view and edit all storage curve data, use the Property Sheet.

The table below describes all the data which can be used to define a storage curve. For details of results fields for nodes, see the Node Results Data Fields (SWMM) topic.

Storage Curve Data

Database Table Name: sw_storage_curve

Field Name	Help Text	Database Field	Data Type	Size	Units	Precision	Default	Error Lower Limit	Error Upper Limit	Warning Lower Limit	Warning Upper Limit
Curve ID	The unique name of this storage curve, up to 254 letters, numbers and underscore characters. Upper and lower case letters are treated as being the same. This name cannot be used by any other curve in the same SWMM network.	id	Text	254		0
Storage array	This field contains a series of records defining the data for this curve. These are entered the Storage Curves Editor which is displayed by clicking on the button. Database Table Name: sw_curve_storage_data Show Columns Database Names Size, Type and Units Defaults and Error Limits Field Name Help Text Database Field Data Type Size Units Precision Default Error Lower Limit Error Upper Limit Warning Lower Limit Ang Upper Limit Depth The depth of water. depth Double   Y 3   0       Surface area The corresponding surface area of the storage node at this water depth. surface_area Double   NA 3   0	Array