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Study of the Madden-Julian Oscillation (MJO) Scheme in South Sulawesi Province

Jurnal Riset & Teknologi Terapan Kemaritiman · Vol. 1 No. 2 (2022) · pp. 34–41

DOI
10.25042/jrt2k.122022.05
ISSN
2962-3359
Published
2022-12-20
Publisher
Departemen Teknik Sistem Perkapalan, Universitas Hasanuddin
Language
en

Abstract

The Madden-Julian Oscillation (MJO) is a phenomenon of the propagation of oscillatory waves that move eastward to the earth with a repetition time of 30-90 days and the impact is very strongly felt in low-latitude areas, near the equator and occurs for the first time in the Indian Ocean and moves eastward between 100 latitude and 100 latitude. MJO is closely related to an increase in excessive rainfall during the rainy season and even the dry season in Indonesia. This research was conducted with the aim of analyzing the effect of the rainfall parameter on MJO and the scheme for the emergence of MJO in South Sulawesi Province, through empirical methods with statistical calculations, based on MJO data in the form of MJO amplitude index values and daily rainfall data for South Sulawesi Province. MJO data was taken from BoM while rainfall data was obtained from NASA TRMM 3B42RT with a time range from 2010 to 2019. Both data were filtered for MJO focusing on phases 2 and 3 (Indian Ocean) and 4 and 5 (Indonesian Maritime Continent) and then analyzed the correlation with sensitivity analysis by simple linear regression, and data plotted on a graph for each year. South Sulawesi Province is one in Indonesia which is located in the southern part of Sulawesi Island. Astronomically, South Sulawesi is located at 0°12' - 8° South Latitude and 116°48' - 122°36' East Longitude. Its geographical location is in the middle of the Indonesian Maritime Continent (BMI), there is a strong positive dominant correlation effect in the province of South Sulawesi with an r of 0.712. This means that the rainfall parameter in South Sulawesi Province can have a strengthening influence on the MJO. Based on the graphical scheme of the emergence of MJO in the province of South Sulawesi, there was an increase in rainfall during phases 4 and 5 which occurred for eight days. In addition, the influence of ENSO and IOD can strengthen MJO or even trigger MJO and still cause excessive rainfall which is influenced by these global factors, besides that local factors also affect rainfall such as monsoon winds and topographical conditions that are different in each province. So not all of the rainfall that occurs is caused by MJO activity.

Keywords

Collaboration network of the authors

40 authors · 210 co-authorship links · 11 across different organisations · showing the 40 most connected

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  • Hasanuddin University
  • State University of Jakarta
  • Universitas Halu Oleo
  • Kementerian Pariwisata
  • Affiliation unknown
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
Chairul PaotonanAffiliation unknown48
Taufiqur RachmanHasanuddin University22
Taufiqur RachmanAffiliation unknown20
Sabaruddin RahmanHasanuddin University13
Sabaruddin RahmanAffiliation unknown12
Achmad Yasir BaedaAffiliation unknown11
Hasdinar UmarAffiliation unknown7
Hasdinar UmarHasanuddin University7
Ashury AshuryAffiliation unknown5
Ashury AshuryHasanuddin University5
Nur AzisahState University of Jakarta3
ZULFIKAR ZULFIKARUniversitas Halu Oleo3
Mu’minatung NisaAffiliation unknown3
Mu’minatung NisaHasanuddin University3
Ahmad Azwar Mas’ud MHasanuddin University2
Teguh Pairunan PutraHasanuddin University2
Muhammad AsdarHasanuddin University2
Putri Sriwahyuni KasbaAffiliation unknown2
Denis Restuardi DunduHasanuddin University2
Fuad Mahfud AssidiqAffiliation unknown2
Fuad Mahfud AssidiqHasanuddin University2
Fahrul Muhammad NurHasanuddin University2
Dwi AgusdiansyahAffiliation unknown2
Dwi AgusdiansyahHasanuddin University2
Novrian Yosua TimangAffiliation unknown2
Novrian Yosua TimangHasanuddin University2
Nur RachmiAffiliation unknown2
Nur Habiba RachmiHasanuddin University2
Muhammad AksarKementerian Pariwisata2
Andi Mega MustikaHasanuddin University2
Riswal KarammaHasanuddin University1
Yuliani SulemanHasanuddin University1
Reskiyanti ReskiyantiHasanuddin University1
Nurwani SarahHasanuddin University1
Irma HandayaniHasanuddin University1
Windi WidianingrumAffiliation unknown1
Abdi KurniawanHasanuddin University1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://journal.unhas.ac.id/index.php/jrt2k/oai, first harvested 2 Nov 2026, last seen 8 Nov 2026.
Original metadata (oai_dc) 
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	<dc:title xml:lang="en">Study of the Madden-Julian Oscillation (MJO) Scheme in South Sulawesi Province</dc:title>
	<dc:creator xml:lang="en">Tri Utari</dc:creator>
	<dc:creator xml:lang="en">Achmad Yasir Baeda</dc:creator>
	<dc:creator xml:lang="en">Chairul Paotonan</dc:creator>
	<dc:subject xml:lang="en">Madden-Julian Oscillation; rainfall; South Sulawesi Province</dc:subject>
	<dc:description xml:lang="en">The Madden-Julian Oscillation (MJO) is a phenomenon of the propagation of oscillatory waves that move eastward to the earth with a repetition time of 30-90 days and the impact is very strongly felt in low-latitude areas, near the equator and occurs for the first time in the Indian Ocean and moves eastward between 100 latitude and 100 latitude. MJO is closely related to an increase in excessive rainfall during the rainy season and even the dry season in Indonesia. This research was conducted with the aim of analyzing the effect of the rainfall parameter on MJO and the scheme for the emergence of MJO in South Sulawesi Province, through empirical methods with statistical calculations, based on MJO data in the form of MJO amplitude index values and daily rainfall data for South Sulawesi Province. MJO data was taken from BoM while rainfall data was obtained from NASA TRMM 3B42RT with a time range from 2010 to 2019. Both data were filtered for MJO focusing on phases 2 and 3 (Indian Ocean) and 4 and 5 (Indonesian Maritime Continent) and then analyzed the correlation with sensitivity analysis by simple linear regression, and data plotted on a graph for each year. South Sulawesi Province is one in Indonesia which is located in the southern part of Sulawesi Island. Astronomically, South Sulawesi is located at 0°12' - 8° South Latitude and 116°48' - 122°36' East Longitude. Its geographical location is in the middle of the Indonesian Maritime Continent (BMI), there is a strong positive dominant correlation effect in the province of South Sulawesi with an r of 0.712. This means that the rainfall parameter in South Sulawesi Province can have a strengthening influence on the MJO. Based on the graphical scheme of the emergence of MJO in the province of South Sulawesi, there was an increase in rainfall during phases 4 and 5 which occurred for eight days. In addition, the influence of ENSO and IOD can strengthen MJO or even trigger MJO and still cause excessive rainfall which is influenced by these global factors, besides that local factors also affect rainfall such as monsoon winds and topographical conditions that are different in each province. So not all of the rainfall that occurs is caused by MJO activity.</dc:description>
	<dc:publisher xml:lang="en">Departemen Teknik Sistem Perkapalan, Universitas Hasanuddin</dc:publisher>
	<dc:date>2022-12-20</dc:date>
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	<dc:identifier>https://journal.unhas.ac.id/index.php/jrt2k/article/view/24419</dc:identifier>
	<dc:identifier>10.25042/jrt2k.122022.05</dc:identifier>
	<dc:source xml:lang="en">Jurnal Riset &amp; Teknologi Terapan Kemaritiman; Vol. 1 No. 2 (2022); 34-41</dc:source>
	<dc:source>2962-3359</dc:source>
	<dc:source>10.25042/jrt2k.122022</dc:source>
	<dc:language>en</dc:language>
	<dc:relation>https://journal.unhas.ac.id/index.php/jrt2k/article/view/24419/8930</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2022 Jurnal Riset &amp; Teknologi Terapan Kemaritiman</dc:rights>
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