PERAMALAN CURAH HUJAN MENGGUNAKAN METODE ANALISIS SPEKTRAL
ABSTRACT: The purpose of this
research is the model of forecasting rainfall using spectral analysis method.
To obtain complete information on characteristics of time series data we need
to examine periodicity of the data. Examining the periodicity of time series
data in the frequency domain is called spectral analysis. The results of
spectral analysis show that periodogram is clearly dominated by a very large peak
at frequency . This frequency corresponds to period of 12 cycle per month.
Based on the results of analysis of time series data rainfall is SARIMA
(0,1,1)(0,1,1) 12 where the model can be
written as The result indicates minimum rainfall happen in January and maximum
rainfall happen in August.
Penulis: Ni Putu Mirah Sri
Wahyuni
Kode Jurnal: jpmatematikadd160164
