Check Files 1d pit A
Revision as of 11:47, 3 January 2019 by Pavlina Monhartova (talk | contribs)
This GIS layer contains information on the 1D pits for the simulation.
The values for the 1D tabular pit data (e.g. time-series) can be found in the _1d_pit_inlet_tables_check.csv file.
Attributes of pit_A_check
| Attribute Name | Attribute Description |
|---|---|
| ID | The pit ID. |
| Type | The pit type, see TUFLOW manual for a list of pit types. |
| VP_Network_ID | Used to determine which outlet(s) the flow into the inlet pits discharges from. |
| Inlet_Type | For a VPI or Q pit, the name of a pit inlet type in the Pit Inlet Database. Not used for other pits. |
| VP_Sur_Index | Only used for VPI pits if using the HPC solver. In the event that the total flow into the VPIs on the same VP_Network_ID exceeds the maximum outflow capacity (see Qmax below), one or more of the VPI flow rates must be modified. The VPIs with the lowest surcharge index are given priority. |
| VP_QMax | VPI and VPO if using the HPC solver: For VPOs the maximum flow that can discharge back into the 2D domain. ForVPIs the maximum surcharge capacity or flow back on to the 2D domain. To prevent a VPI from surcharging enter a QMax of 0.0 (zero). |
| Width | For C pits the diameter of the pit cross-section in the vertical plane. For R and W pits, the width of the pit section in the vertical plane. For all pits the width is used to determine the number of 2D cells to connect. |
| Conn_2D | Used to control the connection type. For pits this field must be blank or set to “SX”. If set to blank, is treated as a SX connection. Other options maybe provided in the future. |
| Conn_No | Overwrite the automatically determined number of connected 2D cells. |
| pBlockage | The percentage blockage (%) of the pits. Reduces the flow capacity through the pit by the specified amount. |
| Number_of | The number of pits. |
| Invert | The elevation from the 2D cell the pit connects to or that entered via a 1d_nwk layer. |
| Q_factor | This is the multiplication factor applied to the discharge to allow for any blockage and/or if Number_of pits is greater than 1. |
| i_1d_layer | The integer index of the GIS layer that the pit came from. For example an i_1d_layer value of 4 would be the 4th input layer (1d_nwk_M08_pits_001) below. Read GIS Pits == mi\1d_nwk_M04_channels_001.MIF |