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Hershfield PMP, 1961. K value

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PMP¸¦ ±¸ÇÏ´Â Hershfield (1961) ½Ä

PMP = XmN + K*SN

XmN : mean of the Annual Maximum Daily Precipitation (AMDP) series
K : frequency factor for estimating PMP
SN : standard deviation of the AMDP series

K = (Xm - XmN1)/SN1

Xm : the maximum value in AMDP series
XmN1, SN1 : the mean and standard deviation of the AMDP series, respectively for (N-1) years after removing the year with the maximum value

*** Âü°í¹®Çå[References] ***

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7232096/#bib0025
K = (Xm - XmN1)/SN1
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