Correction of Observation discharge Data in Flood ~Evaluation of data to be modified Observation discharge Data~

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Correction of Observation discharge Data in
FloodEvaluation of data to be modified
Observation discharge Data

• Discharge Data Is Very Important For Improvement
  Implementation Of River Construction

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Flood
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This report has been divided into three parts

• This report has been divided into three parts.
• In the first part is experimental conditions.
• In the second part is how to be modified
  observation discharge data.
• And in the final part is how to evaluate modified
  discharge data are correct by using the
  two-dimension, and the necessity of correcting
  observation discharge data.

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Experimental Field 1
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Experimental Field 2
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Precipitation of 8th 9 th October catchments
rain-gage stations
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Reduction factor ?for rod floats WMO method
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How to Modify Observation Discharge Data

• Observation discharge, discharge of
  stationary state
• water-surface gradient, Im mean of
  water-surface gradient

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Rating Curve of Unsteady State Discharge
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Favored area range of triangular division by
Finite Element method
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Translation of Vegetation Parameters
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Calibration roughness parameters
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motion equations of overflow currents
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motion equations of underflow currents
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continuity equation of overflow and underflow
currents
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Model for prediction of water level
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Evaluation of data amendment
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Result of Current by FEM