POLA DISTRIBUSI HUJAN JAM-JAMAN DAERAH MINAHASA SELATAN DAN TENGGARA
Abstract: Design rainfall is
an input for analyzing the ungagged cathment design flood. Daily rainfall
should be transformed into hourly rainfall. Transforming the daily rainfall to
hourly rainfall by using the Storm Pattern of each own area. Until now there is
no research about Storm Pattern of South Minahasa and South East Minahasa area
therefor in design flood analysis still using the Storm Pattern from another
area. The aim of this research is to get the Storm Pattern of the South
Minahasa and the South East Minahasa area. The hourly rainfall data from 2003
to 2014 was taken from the Automatic Rain gage station at Tumani-Tompasobaru
station, Buyat station, and Noongan station. Data was analyzed by using Statistics
Methods. The rainfall data that used is the rainfall that has depth more than
50 mm in one rainfall series. Data is analyzed to get the frequency of each
rainfall duration and then determine the rainfall duration that can represent
the storm pattern of the research area. The result shows that the duration
of storm pattern of this area is six to
ten hours which 63% in first hour, 8% in second hour, 19% in third hour, 7% in
fourth hour, 2% in fifth hour and 1% in sixth to tenth hour.
Penulis: Jeffry Swingly Frans
Sumarauw
Kode Jurnal: jptsipildd160366
