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Seawater Masses Characteristics of The Bali Sea Based on CTD Yo-Yo Casting

ILMU KELAUTAN: Indonesian Journal of Marine Sciences · Vol. 26 No. 4 (2021) · hlm. 282–297

DOI
10.14710/ik.ijms.26.4.282-297
ISSN
2406-7598, 0853-7291
Terbit
2021-12-05
Penerbit
Marine Science Department Diponegoro University
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-nc-sa/4.0

Abstrak

The Bali Sea is located between the Java Sea and the Lombok Strait, which is one of the Indonesian Through Flow exits, especially the western route. These waters are possible to be the meeting place and mixing of two water masses with significantly different characteristics, that is the watermass brings by Indonesian Through Flow and Indian Ocean watermass. This study describes the watermasses and its turbulent mixture in the Bali Sea using CTD Yo-Yo casting data and spatial monsoonal wind distribution. The vertical distribution of energy dissipation rate and diapycnal diffusivity in the Bali Sea was computed based on measurement data during KRI RIGEL 933 expedition on April, 2021. KRI RIGEL is operated by Hidro-Oceanographyc Center Indonesian Navy’s. Identified 4 types of water masses in a row, there are Java Sea water masses, mixed water masses between Java Sea and ITF, NPSW and NPIW with modified water mass property characters. The internal tides formed in the sills of the Lombok Strait are thought to contribute to the turbulent mixing parameters in the Bali Sea. The values obtained for energy dissipation and diapycnal diffusivity are 1.58 x 10-9 W Kg-1 and 5.07 x 10-5 m2 s-1, respectively. The value of this turbulent mixing parameter is confirmed to be smaller than the mixing value in the Lombok strait and is equivalent to the open sea. It is seen that there is a transformation of water mass which is marked by a shift in the density value in the identified water mass type.

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  • National Research and Innovation Agency
  • Naval State University
  • Diponegoro University
  • IPB University
  • Pusat Hidro-Oseanografi Angkatan Laut
  • Indonesia Defense University
  • Indonesian Institute of Sciences
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Tampilkan sebagai tabel
Rekan penulisOrganisasiArtikel bersama
Agus Saleh AtmadipoeraIPB University3
Amir Yarkhasy YuliardiJenderal Soedirman University3
Henry Munandar ManikAfiliasi tidak diketahui2
Adi PurwandanaIndonesian Institute of Sciences2
I Wayan Sumardana Eka PutraIPB University2
Mario CabralNational University of East Timor2
Anindya WirasatriyaDiponegoro University2
Dwi Aji ZulfikarNaval State University1
YOYOK NURKARYA SANTOSANaval State University1
Endro Sigit KurniawanNaval State University1
Carudin CarudinUniversitas Bani Saleh1
Suhadi SuhadiUniversitas Halu Oleo1
Achmad Fachruddin SyahUniversitas Trunodjoyo Madura1
Widodo Setiyo PranowoNational Research and Innovation Agency1
Johanis Dominggus LelaletteAfiliasi tidak diketahui1
Muh. Hafizh IzzaturrahimNational Research and Innovation Agency1
Muhammad HelmiDiponegoro University1
Laila LatifahDiponegoro University1
Subekti MujiasihNational Research and Innovation Agency1
Herlina Ika RatnawatiNational Research and Innovation Agency1
Rahaden Bagas HatmajaNational Research and Innovation Agency1
Mario Putra SuhanaUniversitas Maritim Raja Ali Haji1
Mochamad Furqon Azis IsmailNational Research and Innovation Agency1
Fauzan Novan RyantoNational Research and Innovation Agency1
Heryoso SetiyonoDiponegoro University1
Anom Puji HascaryoPusat Hidro-Oseanografi Angkatan Laut1
Nyoman Metta N. NatihIPB University1
Kentaro AndoJapan Agency for Marine-Earth Science and Technology1

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Sumber metadata: OAI-PMH (metadata jurnal) http://ejournal.undip.ac.id/index.php/ijms/oai, pertama di-harvest 8 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en-US">Seawater Masses Characteristics of The Bali Sea Based on CTD Yo-Yo Casting</dc:title>
	<dc:creator>Harsono, Gentio</dc:creator>
	<dc:creator>Purwanto, Budi</dc:creator>
	<dc:creator>Gultom, Rudy A.G.</dc:creator>
	<dc:creator>Puliwarna, Tunggul</dc:creator>
	<dc:creator>Setiyadi, Johar</dc:creator>
	<dc:creator>Ando, Kentaro</dc:creator>
	<dc:creator>Cobral, Mario</dc:creator>
	<dc:subject xml:lang="en-US">Seawater Masses; Bali Sea; CTD Yo-Yo; Indonesian Through Flow; energy dissipation</dc:subject>
	<dc:description xml:lang="en-US">The Bali Sea is located between the Java Sea and the Lombok Strait, which is one of the Indonesian Through Flow  exits, especially the western route. These waters are possible to be the meeting place and mixing of two water masses with significantly different characteristics, that is the watermass brings by Indonesian Through Flow and Indian Ocean watermass. This study describes the watermasses and its turbulent mixture in the Bali Sea using CTD Yo-Yo casting data and spatial monsoonal wind distribution. The vertical distribution of energy dissipation rate and diapycnal diffusivity in the Bali Sea was computed based on measurement data during KRI RIGEL 933 expedition on April, 2021. KRI RIGEL is operated by Hidro-Oceanographyc Center Indonesian Navy’s. Identified 4 types of water masses in a row, there are Java Sea water masses, mixed water masses between Java Sea and ITF, NPSW and NPIW with modified water mass property characters. The internal tides formed in the sills of the Lombok Strait are thought to contribute to the turbulent mixing parameters in the Bali Sea. The values obtained for energy dissipation and diapycnal diffusivity are 1.58 x 10-9 W Kg-1 and 5.07 x 10-5 m2 s-1, respectively. The value of this turbulent mixing parameter is confirmed to be smaller than the mixing value in the Lombok strait and is equivalent to the open sea. It is seen that there is a transformation of water mass which is marked by a shift in the density value in the identified water mass type.</dc:description>
	<dc:publisher xml:lang="en-US">Marine Science Department Diponegoro University</dc:publisher>
	<dc:date>2021-12-05</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en-US"></dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejournal.undip.ac.id/index.php/ijms/article/view/40797</dc:identifier>
	<dc:identifier>10.14710/ik.ijms.26.4.282-297</dc:identifier>
	<dc:source xml:lang="en-US">ILMU KELAUTAN: Indonesian Journal of Marine Sciences; Vol 26, No 4 (2021): Ilmu Kelautan; 282-297</dc:source>
	<dc:source>2406-7598</dc:source>
	<dc:source>0853-7291</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejournal.undip.ac.id/index.php/ijms/article/view/40797/pdf</dc:relation>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-sa/4.0</dc:rights>
</oai_dc:dc>