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All Journal JURNAL MATEMATIKA STATISTIKA DAN KOMPUTASI Journal of Data Analysis
Miftahuddin Miftahuddin
Syiah Kuala University
Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Mathematics

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Journal : JURNAL MATEMATIKA STATISTIKA DAN KOMPUTASI

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Modeling of Sea Surface Temperature through Fitting Linear Model with Interaction Miftahuddin Miftahuddin; Wanda Sri Noviana
Jurnal Matematika, Statistika dan Komputasi Vol. 18 No. 1 (2021): September 2021
Publisher : Department of Mathematics, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/j.v18i1.13987

Abstract

Sea surface temperature (SST) is one of the attributes of the world climate system and global warming. The relationship between SST and other climate parameters can be represented in a linearity approach. Through this approach, SST variability shows monthly and yearly effects. Information on these two time effects is important for knowing the period of peak effect as well as other statistical measures in the linear fitting model. The models used include transformation and without covariate transformation, interaction and without covariate interaction, and with centering and with the addition of time covariates in the model. The linear fitting model chosen as the basis for construction is a model with a combination effect of covariate interaction and transformation giving an increase in the magnitude of multiple R2 (56.62%) and adjusted R2 (56.13%) respectively 0.31% and 0.43%. This indicates that the time covariate has a very strong significant effect on the model compared to the continuous covariate. In general, the model has a statistical significance of p-value < 2.2e-16, as well as for the time covariate. However, because the model has an autocorrelation and a large AIC value, this effect is removed by means of an autoregressive moving average. The obtained linear fitting model for SST data is the model with AIC 403.2987.
Co-Authors Doddy Maulana Hizir Sofyan Kurnia Saputra Marzuki Marzuki Muhammad Iqbal Rasudin Rasudin Wanda Sri Noviana