Description Usage Arguments Value Author(s) References See Also Examples
Input data are originaly inteded for measurement of point velocity hydrometric measurement with FlowTracker HandHeld ADV, but if the data is provided in a right format, they can be from measurement with any other point velocity tool. Output is discharge in [(m^3)*s^(-1)].
1 |
data |
Data must be in format: data.frame. In data there must be columns: Loc, Depth, MeasD, Vel. Means: Loc - "x" location of point from the bank of the stream [meters], Depth - depth of vertical of measured point [meters], MeasD - depth of measured point in vertical [meters], Vel - measured point velocity [m*s^(-1)]. Measured verticals must be in order from the lowest value of "x" location to highest "x" location or from the highest value of "x" location to the lowest value of "x" location. |
m |
Coefficient depending on hydraulic friction for estimation of velocity in the area between the reiver bank an first/last measured vertical. Can be calculated according to technical norm ISO 748 with use of Chezy coeficient, or can be estimated as a value the usual from interval 5–7. According to ISO 748, value 4 us used for high roughness of the bottom and value 10 means the least rough bottom. If you do not want to use coefficient m, set it to 0. |
Discharge in m^3.s^-1.
Eliska Friedlova (Hasnikova)
technical norm ISO 748
this function uses HorizontalV
1 2 | Qmeans = MeziSvisP(data_01, 7)
Qmeans
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