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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 · 111 co-authorship links · 1 across different organisations · showing the 40 most connected

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  • Universitas Halu Oleo
  • Universitas Nahdlatul Ulama Blitar
  • Hasanuddin University
  • Universitas Teknologi Yogyakarta
  • Affiliation unknown
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
Taufiqur RachmanAffiliation unknown22
Sabaruddin RahmanAffiliation unknown13
Hasdinar UmarAffiliation unknown8
Ashury AshuryAffiliation unknown5
Nur AzisahAffiliation unknown3
ZULFIKAR ZULFIKARUniversitas Halu Oleo3
Mu’minatung NisaAffiliation unknown3
Ahmad Azwar Mas'ud MAffiliation unknown2
Muhammad AsdarAffiliation unknown2
Putri Sriwahyuni KasbaAffiliation unknown2
Fuad Mahfud AssidiqAffiliation unknown2
Dwi AgusdiansyahAffiliation unknown2
Taufiqurrahman TaufiqurrahmanAffiliation unknown2
Ilham AlkhaerAffiliation unknown2
Novrian Yosua TimangAffiliation unknown2
Nur RachmiAffiliation unknown2
Muhammad AksarAffiliation unknown2
Muhammad Arsyad ThahaAffiliation unknown2
Wasir SamadAffiliation unknown2
Andi Mega MustikaAffiliation unknown2
Teguh Pairunan PutraAffiliation unknown1
Adriani PhadyAffiliation unknown1
Ariska AriskaAffiliation unknown1
Arsil ArsilAffiliation unknown1
Sugianto SugiantoUniversitas Nahdlatul Ulama Blitar1
Riswal KarammaHasanuddin University1
Rita Tahir LopaAffiliation unknown1
Yuliani SulemanAffiliation unknown1
Reskiyanti ReskiyantiAffiliation unknown1
Alif Hidayat KasimAffiliation unknown1
Wahyuni HasanAffiliation unknown1
Wahyu Sakinah KasimAffiliation unknown1
Ahmad Yasir BaedahAffiliation unknown1
Nurwani SarahAffiliation unknown1
Irma HandayaniUniversitas Teknologi Yogyakarta1
Riska DamayantAffiliation unknown1
Royh Savhanta TonapaAffiliation unknown1

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 2 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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