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- W2900580498 abstract "The quantity of rainfall and its related events have become more and more uncertain due to climatic variability. The complexity of the rainfall pattern increases due to the changes of the atmospheric behavior from time to time. Relatively, few measures have been taken to perform the modeling of rainfall in the context of long memory. This paper provides an assessment of such a phenomenon by fitting an appropriate time series model. A long range dependency model is proposed to fit weekly rainfall data to explore characteristics of persistence through an unbounded spectral density. Careful examination of the data exhibits periodic fluctuations as an additional feature. Since, the rainfall series exhibits periodic variations and persistence, a seasonal autoregressive fractionally integrated moving average (SARFIMA) model is fitted. Parameters of it are estimated using maximum likelihood estimation (MLE) method. A Monte Carlo simulation was carried out with different seasonal and non seasonal fractionally differing parameters to measure the suitability of the method for parameter estimation. Best fitted model is chosen based on the minimum of the mean absolute error and the forecasting performance are compared with the result of Seasonal autoregressive integrated moving average (SARIMA) using an independent sample as a creative contribution." @default.
- W2900580498 created "2018-11-29" @default.
- W2900580498 creator A5028545813 @default.
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- W2900580498 date "2018-11-24" @default.
- W2900580498 modified "2023-09-27" @default.
- W2900580498 title "Modeling Persistent and Periodic Weekly Rainfall in an Environment of an Emerging Sri Lankan Economy" @default.
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- W2900580498 doi "https://doi.org/10.1007/978-3-030-04263-9_24" @default.
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