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Lag time in hydrograph

  1. Dec 8, 2017 #1
    1. The problem statement, all variables and given/known data
    Lag time in hydrograph means teh time of center of rainfall to center of hydrograph , according to my book .

    2. Relevant equations


    3. The attempt at a solution
    Since lag time can be understood by the time taken for the water to reach river , contributing to max discharge ... So , i think in photo 755 , it's wrongly labelled , it sjould be labelled in the beginning of the graph , which is the green line , correct me if i am wrong.
     

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  2. jcsd
  3. Dec 9, 2017 #2

    berkeman

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    Staff: Mentor

    I'm not understanding your question. is point "A" the center of the rainfall?
     
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