Help to make a Unit Hydrograph of Reservoir Level - Storage Curve for a Dam

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Discussion Overview

The discussion revolves around creating a unit hydrograph for a reservoir level and storage curve for a dam. Participants are seeking guidance on methodologies and procedures, particularly in relation to using flood data as input rather than rainfall data.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant requests assistance in developing a unit hydrograph for a reservoir, indicating difficulty in finding relevant information online.
  • Another participant references specific pages from Chadwick & Morfett that discuss flood routing and reservoir routing, suggesting these as potential resources.
  • A participant shares their experience with hydrological observations and statistical distributions, mentioning that Gumbel, LogNormal, and LogPearson Type III distributions fit their data well. They express a desire to understand how to create a unit hydrograph using flood data as input.
  • The same participant notes their familiarity with creating unit hydrographs from rainfall data but seeks clarification on the process when using flood data.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on the specific methodology for creating a unit hydrograph from flood data, indicating that multiple viewpoints and uncertainties remain in the discussion.

Contextual Notes

There are limitations regarding the lack of detailed procedures for using flood data as input for unit hydrographs, and the discussion does not resolve the specific steps or assumptions involved in this process.

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Hello!
I'm just asking for a clue on how to make a unit hydrograph Reservoir Level - Storage Curve for a Dam. I have been searching information on internet, but I could not find anything about that. I would appreciate any idea or suggestion.
Thanks!
 
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Chadwick & Morfett

page 317 under 'flood routing'
and p318 'reservoir routing'

gives details of a tabular and finite difference method.

Other texts also discuss this under flood routing.

go well
 
Thanks Studiot!
 
Studiot!... I am sorry to bother you, but maybe you can help me giving me some idea!
I collected hydrological observations from a reservoir (three days average flow rates). These annual three day average flow rate were subject to a goodness of fit test; the results showed that Gumbel, LogNormal and LogPearson Type III distributions ave better fit than the other candidate distributions. Then the three distributions are used to generate the various return periods flood and then be converted into hydrograph for the reservoir routing.

But my question is... Do you know how to make a unit hydrograph with flood data as input?
I know how to make it with rainfall as input data; and I have been searching on internet and books but I could not find a procedure where the flood is the input data.
I would appreciate any idea or information.
Thanks!
 
*have
 

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