Open AccessProbable maximum precipitation for the catchment of Koyna dam
Author(s) -
P. R. Rakhecha,
Ashwini Kulkarni,
BN Mandal,
R. B. Sangam,
N. R. Deshpande
Publication year - 1998
Publication title -
mausam
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.243
H-Index - 12
ISSN - 0252-9416
DOI - 10.54302/mausam.v49i2.3620
Subject(s) - precipitation , hydrology (agriculture) , spillway , flood myth , drainage basin , environmental science , range (aeronautics) , geology , geography , meteorology , geotechnical engineering , engineering , cartography , archaeology , aerospace engineering
Estimates of Probable Maximum Precipitation (PMP) for different durations were made for the catchment above Koyna dam on the Koyna river. The catchment spans an area of 892 km2 and the PMP estimates were made for a range of durations of 1 to 3 days. The PMP estimates for Koyna dam were found to be 48, 87 and 117 cm by the physical method and 54, 89 and 124 cm by statistical method for 1, 2 and 3 day respectively. These estimates can be used to check the existing spillway design flood of Koyna dam.