Tuflow and estry manual Version 3



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HT, QT, ST, VG, VT: Amount added to the boundary values after the multiplication factor f above. Values may also be adjusted using the ValueAdd keyword (see Table 4 .21).

HS (fixed field only): Mean water level of tidal constituents. For repeat boundaries using fixed field input, it is a constant added to the mean water level of the copied boundary.

QC, VC: The value of constant velocity or flow.

SX: m offset for determining cell invert levels for distributing flows.

CD, CN, HX: Not used.

Float

41-50

td

HT, QT, ST, VG, VT: Incremental amount added per cell to the boundary’s time values. Time values may also be adjusted using the TimeAdd keyword (see Table 4 .21). For fixed field input, td is both added to the time values and incrementally added. To incrementally add per cell, it is better to specify the HT boundary at the first cell, then use a repeat boundary to incrementally add along a line of cells.

HS: Incremental phase lead or lag in degrees per cell along the boundary.

CD, CN, HX, QC, SX, VC: Not used.

Float

51-60

a

HT, VG: Incremental adjustment of the multiplication factor per cell along the boundary. For the nth cell along the boundary the water level or cell elevation (hn) is adjusted according to:

where h1 is the water level at the first cell.



HS: Incremental adjustment of the amplitude per cell along the boundary. For the nth cell along the boundary the amplitude () is adjusted according to:



QC, QT, VC, VT: Angle of flow direction in degrees relative to the X-axis, ie. X-axis (left to right) is zero, Y-axis is 90, etc.

CD, CN, HX, ST, SX: Not used.

Float

61-70

b

HT, QT, ST, VG, VT: Incremental amount added per cell to the boundary values after any incremental multiplication factor. Values may also be adjusted using the ValueAdd keyword (see Table 4 .21).

HS: Incremental amount added per cell to the mean water level.

CD, CN, HX, QC, SX, VC: Not used.

Float

71-80


Table 4.26 2D Source over Area (2d_sa) Attribute Descriptions

GIS Attribute

Description

Type

FF Cols

Name

The name of the BC in the BC Database (see Section 3.17.1).

Note: If two or more SA inflows of the same name cover the same cell, only the first inflow is used. Recommendation is to have a unique name for each polygon and/or do not overlap polygons.

Char(100)

N/A




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