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All Journal Jurnal Matematika UNAND Khazanah: Jurnal Mahasiswa
Fadila Aulia
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PERAMALAN CURAH HUJAN BULANAN KABUPATEN TANAH DATAR DENGAN MODEL SEASONAL AUTOREGRESSIVE INTEGRATED MOVING AVERAGE (SARIMA) Fadila Aulia; Hazmira Yozza; Dodi Devianto
Jurnal Matematika UNAND Vol 8, No 2 (2019)
Publisher : Jurusan Matematika FMIPA Universitas Andalas Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jmu.8.2.37-44.2019

Abstract

Curah hujan merupakan salah satu faktor penting yang mempengaruhi berbagai aspek kehidupan terutama dalam bidang pertanian. Mengetahui besarnya curah hujan untuk waktu yang akan datang dapat membantu proses perencanaan manusia dalam berbagai aspek dan dapat menanggulangi berbagai permasalahan yang timbul di kemudian hari. Besarnya curah hujan untuk waktu yang akan datang dapat diprediksi dengan melakukan proses peramalan. Data curah hujan merupakan suatu data runtun waktu. Proses peramalan data runtun waktu dapat dilakukan dengan berbagai metode, salah satunya dengan menggunakan model Seasonal Autoregressive Integrated Moving Average (SARIMA). Pada penelitian ini dilakukan proses peramalan curah hujan bulanan kabupaten Tanah Datar dengan menggunakan data curah hujan bulanan kabupaten Tanah Datar dari bulan Januari 2013 sampai bulan Oktober 2018 dan diperoleh model SARIMA terbaik yaitu SARIMA(0, 0, 1)(0, 1, 0)6 . Berdasarkan hasil peramalan yang diperoleh, besarnya curah hujan kabupaten Tanah Datar untuk bulan Desember 2018 sampai bulan April 2019 konstan.Kata Kunci: Curah Hujan, Peramalan, SARIMA
SEA AND COVID-19 VIRUS: (ANALYSIS EFFECT OF THE COVID-19 PANDEMIC ON MARINE ECOSYSTEM IN INDONESIA IN 2020-2021) Fadila Aulia
Khazanah: Jurnal Mahasiswa Vol. 13 No. 4 (2021): Abstract Proceeding Book: 2st International Conference-Labma Scientific Fair
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/khazanah.vol13.iss4.art19

Abstract

Marine ecosystems are one of the most extensive and diverse biological natural resources. Unfortunately, at this time the marine ecosystem is starting to be threatened. According to preliminary calculations from the Coordinating Team for the National Secretariat for Handling Marine Debris, the total waste entering the sea in 2020 is estimated to reach 521,540 tons, of which around 12,785 tons originate from activities at sea. The purpose of this research is to see how the impact of the Covid-19 pandemic on marine ecosystems. Researchers want to see if the Covid-19 pandemic has a positive impact that can be used as a reference for improving a sustainable marine ecosystem. The method that the researcher uses in this research is the literature study method using previous research journals as a reference for data collection. Based on the literature study that has been carried out, the researchers obtained the results that the Covid-19 pandemic had positive and negative impacts on marine ecosystems. The positive impact caused is the reduction in human activities during the Covid 19 pandemic, making marine ecosystems have a high probability of recovering. While the negative impact is the increase in waste production. Because when the Covid-19 pandemic occurred, many people shopped through online applications. However, seeing that the restriction of human activity during the Covid-19 pandemic has a positive impact on marine ecosystems, this policy can be continued. By limiting visitors who come to marine tourism areas. For example, marine tourism is only opened 3 times a week and visitors who are allowed to come cannot be more than 30 people. This is expected to reduce marine pollution caused by human hands. Keywords : Covid-19 pandemic, marine ecosystem, pollution.
Co-Authors Devianto, Dodi Hazmira Yozza