PEMODELAN STOKASTIK CURAH HUJAN DARI BEBERAPA STASIUN CURAH HUJAN WILAYAH TANGGAMUS
ABSTRACT: This research is to
study the periodic and stochastic models in the series of daily rainfall data.The
study was conducted using daily rainfall data with a data length of 25 years
(1977-2001)from the station of Banjar Agung, Gisting and Gunung Batu. This
research used secondary rainfall data from Tanggamus, This study change the
series of dailyrainfall data into the sepektrum rainfall using FFT (Fast
Fourier Transform). Periodicity of dailyrainfall data were presented by using
512 rainfall. Stochastic series of rainfall data are assumedas the difference
(error) between the rainfall data with periodic rainfall model.Results of this
study is the correlation coefficient from three rainfall stations In this
study, thecorrelation coefficient (R) between the data and the periodic model
is 0,9974, between stochasticdata series and stochastic models is 0,9996, and
between data and periodic stochastic models is0,99997. From these results it
can be concluded that the periodic stochastic models ofrainfall from Tanggamus
periodic models using 512 rainfall data, the approach provides a very significant.
Penulis: Ahmad Zakaria, Geleng
Perangin Angin, Qodri Ismail
Kode Jurnal: jptsipildd140780
