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Data treatment
4.6 Data treatment
4.6.1 Level treatment
START dh_level1
START dh_level2
Read list of files to be computed
Read list of files to be computed
START dh_level_basic
START dh_level_diff
Read basic parameters
Read basic parameters
Read raw data
Read precomputed data
Compute Absolute situation plots (carth. coord.)
•Grid meshing and interpolatation
•Erase interpolated data outside the channel
•Compute volume (measured to reference level)
Plot and save absolute situation plots & data
Compute relative situation plots (polar coord.)
•Grid meshing and interpolation (bend)
Plot and save cross sections plots (single line)
Data treatment (Situation and cross section plots)
•Interpolate grid for inlet / outlet (polar. coord.)
•Compute difference to initial level
Plot and save relative situation plots & data
Plot and save combined cross section
for bend, inlet, outlet and all the channel
Data treatment (derived characteristics)
•Compute min, max, average level
•Compute(local and average) lateral bed slopes
Save data for cross sections plots (single line)
END dh_level_basic
Plot and save
•lateral bed slopes (min, max, average) for all Ri
•longitudinal mean/min/max levels (bend)
no
all files computed ?
END dh_level1
Data treatment (plots over the whole channel)
Plot and save
•longitudinal average/min/max of water/bed level
END dh_level_diff
all files computed ?
no
END dh_level1
Figure 4.24: Flowchart of the MatLab treatment of the water and bed level data
EPFL Ph.D thesis 2632 - Daniel S. Hersberger November 9, 2002 / page 93