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WRRCTR No.30 Hydrograph Study and Peak Discharge Determination of Hawaiian Small Watersheds: Island of Oahu
|Title:||WRRCTR No.30 Hydrograph Study and Peak Discharge Determination of Hawaiian Small Watersheds: Island of Oahu|
|LC Subject Headings:||Hydrology -- Hawaii -- Oahu.|
Stream measurements -- Hawaii -- Oahu.
Watersheds -- Hawaii -- Oahu.
|Issue Date:||Mar 1969|
|Publisher:||Water Resources Research Center, University of Hawaii at Manoa|
|Citation:||Wu I-P. 1969. Hydrograph study and peak discharge determination of Hawaiian small watersheds: Island of Oahu. Honolulu (HI): Water Resources Research Center, University of Hawaii at Manoa. WRRC technical report, 30.|
|Series/Report no.:||WRRC Technical Report|
|Abstract:||Hawaiian small watersheds are unique in watershed hydrology because of the high infiltration rate, small size, and mountainous topography. The flood hydrograph which has a short time to peak and small recession constant can be expressed as a steep triangular shape. A peak discharge equation is derived from the concept of a triangular hydrograph and a linear storage of recession flow. The peak discharge
equation can be shown as a very simple form, Qp = CAR, where C is a coefficient and can be determined by the hydrograph time parameters, time to peak and recession constant, A is the watershed area, and R
is surface runoff in inches. A linearity test between peak discharge and runoff has been made for Hawaiian small watersheds and a good linear relationship was found between peak discharge and surface runoff which is less than six inches not only for an individual small watershed but for watersheds of similar size.
|Sponsor:||U.S. Department of the Interior Grant/Contract No. 14-01-0001-1493; B-003-HI. Hawaii Agricultural Experiment Station, College of Tropical Agriculture, University of Hawaii, City and County of Honolulu.|
|Pages/Duration:||vi +85 pages|
|Appears in Collections:||WRRC Technical Reports|
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