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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA Journal of Oceanography Journal of Marine Research Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Jurnal Kelautan Tropis Jurnal Riset Jakarta Indonesian Journal of Oceanography

Warsito Atmodjo

Departemen Ilmu Kelautan, Fakultas Perikanan Dan Ilmu Kelautan, Universitas Diponegoro

Author-ID : 236604

Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Environmental Science

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POLA SEBARAN HORISONTAL LOGAM BERAT TIMBAL (PB) DAN ZENG (ZN) PADA SEDIMEN DI PERAIRAN MUARA SUNGAI KALIGUNG TEGAL Pratama Andika Rondi; Lilik Maslukah; Warsito Atmodjo
Jurnal Kelautan Vol 14, No 1: April (2021)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v14i1.8481

ABSTRACTMuara Kaligung receives waste from industry and human activities. This condition will have an impact on the accumulation of heavy metals in the sediment. The high concentration of heavy metals in the waters can endanger the survival of living organisms in the waters. The purpose of this study was to determine the concentration and distribution pattern of the heavy metals lead (Pb) and zinc (Zn) sediments in the Kaligung estuary, Tegal and to analyze their relationship to organic carbon and sediment grain size and flow patterns. The method used is descriptive exploratory and the selection of station points using purpose sampling. Sediment sampling in September 2018. Heavy metal analysis using Atomic Absorption Spectrophotometer (AAS), at the Chemical Laboratory, University of Jakarta. The distribution pattern of heavy metal concentrations used QGIS software. The results showed that the concentration of lead (Pb) was between 17.8 ppm - 31.4 ppm and zinc (Zn) ranged from 107.1 ppm - 112.1 ppm. The metal distribution pattern is concentrated in front of the estuary and then decreases towards the sea. The simple linear model analysis of metals to organic carbon has a coefficient of determination (R2) for Pb and Zn of 0.4 and 0.3, respectively. This model explains that the distribution of Pb and Zn metals is influenced by organic carbon by 40% and 30%. Other environmental factors that affect the distribution are grain size and current patterns.Keywords: organic carbon, Pb, Zn, Kaligung estuary, current patternABSTRAKMuara Sungai Kaligung menerima limbah yang berasal dari industri dan aktivitas manusia. Kondisi tersebut akan berdampak terhadap akumulasi logam berat pada sedimen. Logam berat timbal (Pb) dan seng (Zn) di perairan dapat membahayakan keberlangsungan organisme hidup di perairan. Penelitian ini bertujuan mengetahui pola persebaran konsentrasi logam berat timbal (Pb) dan seng (Zn) pada sedimen dan menganalisis faktor keterkaitannya dengan bahan organik dan ukuran butir sedimen serta pola arus. Metode yang digunakan dalam penelitian ini adalah metode deskriptif eksploratif dan penentuan titik stasiun berdasarkan metode purpose sampling. Pengambilan sampel sedimen dilakukan pada bulan September 2018. Analisis logam berat menggunakan Atomic Absorption Spectrophotometer (AAS) di Laboratorium Kimia Universitas Negeri Jakarta. Pola sebaran konsentrasi logam berat menggunakan softtware QGIS. Hasil penelitian menunjukkan bahwa nilai konsentrasi logam berat timbal (Pb) berkisar antara 17,8 ppm – 31,4 ppm dan seng (Zn) berkisar antara 107,1 ppm – 112,1 ppm. Pola sebaran logam terkonsentrasi di depan muara dan kemudian mengalami penurunan ke arah laut. Tingginya konsentrasi logam berat timbal (Pb) dan seng (Zn) tidak selalu diikuti tingginya bahan organik. Hasil analisis model linier sederhana antara logam timbal (Pb) dan seng (Zn) terhadap bahan organik memiliki koefisien determinasi (R2=0,4) dan (R2=0,3), secara berturut-turut. Model ini menjelaskan bahwa keberadaan logam Pb dipengaruhi oleh bahan organik sebesar 40% dan dan Zn sebesar 30%. Ada faktor lingkungan lain yang turut mempengaruhi konsentrasinya, seperti ukuran butir dan pola arus. Kata Kunci: bahan organik, Pb, Zn, muara sungai Kaligung, pola arus

Sebaran Sedimen di Perairan Delta Sungai Bodri, Kendal, Jawa Tengah Warsito Atmodjo
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 15, No 1 (2010): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Penelitian ini dilakukan untuk menganalisis sebaran sedimen, faktor arus serta gelombang yang mempengaruhinya di perairan delta Sungai Bodri. Penelitian ini dilakukan pada bulan Mei sampai Juni 2006. Metode eksploratif digunakan dalam penelitian ini, sampel sedimen diambil dengan stratied purpose sampling berupa sedimen suspensi muara sungai dan sedimen dasar perairan Delta Sungai Bodri. Hasil penelitian menunjukkan bahwa sebaran sedimen delta pada Sungai Bodri adalah gosong pasir (swas bar) dan pola akumulasi gosong pasir sejajar dengan garis pantai. Komposisi sedimen delta berupa lanau pasiran, pasir lanauan, dan pasir. Faktor hidrooseanogra yang mempengarihi sebaran sedimen delta Sungai Bodri yang dominan adalah debit Sungai Bodri 9,17 - 54,48 m3/dt.; input sedimen suspensi 0,26 – 0,42 kg/dt.; MSL pasut 58,65 cm.; LLWL pasut 37 cm.; HHWL 98 cm.; kedalaman perairan (-11) cm sampai (-111) cm.; kecepatan arus (0,16 to 0,68) m/dt.; arah arus Utara (210°-267°) Timur; tinggi gelombang (0,08-1,5) m dan arah gelombang Utara (200°-318°) Timur. Faktor oseanografi yang dominan pembentuk sebaran sedimen delta Sungai Bodri adalah gelombang. Kata Kunci : delta, sedimen, Sungai Bodri The pattern distribution of sediment of River Bodri delta and oceanographic factor influenced them are studied during May until June 2006. Explorative methods was apllied, the sample of sediment i.e. suspended and bottom sediment were taken from river mouth of Bodri. The results showed that the pattern sediment accumulation at delta River Bodri are swas bar and the sediment were spreaded out parallel with the coastal line. Component of sediment delta concist of sandy silt, silty sand and sand. Factor of hidro-oceanography which built distribution pattern of sediment delta of River Bodri as follows : The value of deschart River Bodri is 11,3315 m3/sec.; sediment suspention input 0,0835 kg/sec.; mean sea level of tides 58,65 cm.; height waters of low tides 37 cm.; height water of height tides 98 cm.; depth of subsurface waters (-11) cm to (-111) cm.; velocity of suurents is (0,16 to 0,68) m/ sec.; the trend of currents is North (2100-2670) degree East; height of wave (0,08-1,5) m and bearing of wave North (2000-3180) degree East. The dominant agent of oceanographic factors of pattern sediment accumulation in delta of River Bodri was waves energi. Key Words : delta, sediment, Bodri River

Seasonal Variability of Waves Within the Indonesian Seas and Its Relation With the Monsoon Wind Purwanto Purwanto; Denny Nugroho Sugianto; Muhammad Zainuri; Galuh Permatasari; Warsito Atmodjo; Baskoro Rochaddi; Aris Ismanto; Parichat Wetchayont; Anindya Wirasatriya
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 26, No 3 (2021): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.26.3.189-196

The previous studies have simulated the variability of the wave within the Indonesian seas which showed that the variability of wave follows the seasonal pattern. However, their analysis only consider the influence of local wind forcings. The bias and error of their simulated wave were also unclear. In the present study, we investigate the variability of wave within the Indonesian seas and its relation with the surface wind speed using the combination of reanalysis and remote sensing data with high accuracies. We split the analysis into swell and wind wave to obtain the influence of local and remote wind forcings. We show that at the inner seas (i.e., the South China Sea, Java Sea, Flores Sea, Banda Sea and Arafura Sea), the variability of significant wave height (SWH) is majorly influenced by the variability of the speed of monsoon wind. The maximum SWH during Northwest monsoon (NWM) season is located at the South China Sea while during Southeast monsoon (SEM) season is at Arafura Sea. This indicates that the wind wave (sea) is dominant at the inner seas. At the open seas (i.e., Pacific Ocean and Indian Ocean) the variability of SWH less corresponds to the the speed of monsoon wind. The remote wind forcings control the wave variability in the open ocean area. This indicates that swell is dominant at the open seas. In general, the magnitude of SWHswell is also more than SWHsea within the Indonesian seas.

STUDI PENYEBARAN SEDIMEN TERSUSPENSI DI MUARA SUNGAI PORONG KABUPATEN PASURUAN Warsito Atmodjo
Buletin Oseanografi Marina Vol 1, No 1 (2011): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Abstract Estuary is part of the downstream that straightly related to the sea which function as expenseas of water river (Triatmodjo, 1999). Sediment transport which came from river and sea will be akumulated in estuary. That akumulated make effect to changes of the depth in that area. The purpose from this research is to know about the suspended sediment spreading in Porong estuary. The research was done in three stages which were field survey on April 5th until 24th 2008, laboratory analysis to bottom sediment samples on May 5th until 27th 2008 in Core Laboratory Marine Geology Research and Development Centre Cirebon and suspended sediment analysis on June 13th 2008 in Water Laboratory Environmental Engineering, Civil and Environmental Engineering Department, Bandung Institute Technology. Model running on Computation Laboratory Marine Sciences Department, Diponegoro University Semarang. Model simulation running on 15 days from April 9th until 24th 2008 related to the field survey. Descriptive method was used in this research, and SMS (Surface Water Modelling System) software used for making the model. Materials used were primary and secondary data. Primary data that is current, tides, bottom sediment and suspended sediment. Secondary data that is Porong river flow, Juanda wind data and bathymetric map. Based on simulation current speed in research location on Spring condition up to 0.270 m/s and current speed on Neap condition up to 0.080 m/s. Which direction on ebb to flood condition moved from east to west then to north, on flood to ebb condition moved from north to south then to east. Simulation result of Suspended sediment consentration spreading on 15 days showed that suspended sediment consentration was 3.803 until 240.448 mg/l which dominate direction moved to south east. Key words : suspended sediment, current, Porong estuary.

Pemodelan Sebaran Tumpahan Minyak di Perairan Karawang, Jawa Barat Muh Dandi Firmansyah; Aris Ismanto; Sri Yulina Wulandari; Rikha Widiaratih; Azis Rifai; Warsito Atmodjo
Buletin Oseanografi Marina Vol 10, No 2 (2021): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/buloma.v10i2.31736

Perairan Karawang merupakan salah satu perairan yang dilintasi Alur Laut Kepulauan Indonesia (ALKI) dimana kapal-kapal besar dan kapal tanker melintasi area perairan ini. Pada bagian utara Perairan Karawang juga terdapat kegiatan pengeboran migas (minyak dan gas) sumur bor milik salah satu perusahaan minyak dan gas nasional, sehingga Perairan Karawang dan sekitarnya mempunyai resiko yang tinggi terhadap tumpahan minyak. Tujuan penelitian ini adalah untuk memperkirakan luasan pola persebaran tumpahan minyak mentah (crude oil) akibat kebocoran sumur bor di perairan Karawang dan wilayah perairan di sekitarnya. Penelitian ini dibagi menjadi dua tahapan, yaitu tahap survei lapangan dan tahap pemodelan numerik. Pemodelan numerik terdiri dari pemodelan arus, sebaran tumpahan minyak, dan nasib (fate) minyak setelah tumpah yang masing-masing dimodelkan menggunakan model matematika dua dimensi Penelitian ini menggunakan metode kuantitatif dan untuk menentukan lokasi pengukuran menggunakan metode purposive sampling. Trayektori Sebaran tumpahan minyak mentah (crude oil) dominan bergerak dari sumur bor pada koordinat 107°37′32.52″E dan 06°5’39”S menuju ke arah barat, bergerak dari Perairan Karawang menuju Perairan Bekasi. Hal itu terjadi karena peristiwa minyak tumpah terjadi musim timur, yakni arus dominan bergerak dari arah timur dan tenggara menuju ke arah barat dan barat laut. Daerah terdampak tumpahan minyak ini meliputi Kabupaten Karawang dan Kabupaten Bekasi, khususnya wilayah Perairan Kecamatan Muara Gembong dengan luasan sebaran tumpahan minyak sekitar 249.91 km2. Karawang waters is one of the waters crossed by the Indonesian Archipelago Sea Channel (ALKI) where large ships and tankers cross this water area. In the northern part of Karawang Waters, there is also oil and gas (oil and gas) drilling activities which are owned by one of the national oil and gas companies, so that the Karawang waters and surrounding areas have a high risk of oil spills. The purpose of this study was to estimate the extent of the distribution pattern of crude oil spills due to leakage of wells in the waters of Karawang and the surrounding waters. This research was divided into two stages, namely the field survey stage and the numerical modeling stage. Numerical modeling consists of modeling the flow, distribution of oil spills, and the fate of oil after spilling, each of which is modeled using 2 dimension mathematical model. This study uses quantitative methods and to determine the location of measurements using the purposive sampling method. Trajectory The dominant distribution of crude oil spills moves from the wellbore at coordinates 107 ° 37′32.52 ″ E and 06 ° 5'39 "S heading westward, moving from Karawang Waters to Bekasi Waters. This happened because the oil spill event occurred in the east season, which is the dominant current moving from east and southeast to west and northwest. Areas affected by the oil spill include Karawang Regency and Bekasi Regency, especially the waters of the Muara Gembong District with an area of distribution of oil spills around 249.91 km2.

Geomorfologi Pesisir Pantai Benteng Portugis, Kecamatan Donorojo, Kabupaten Jepara Warsito Atmodjo
Jurnal Kelautan Tropis Vol 19, No 2 (2016): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

The dynamics of coastal geomorphology depending on the rock making up the coastal and oceanographic processes that work. Coastal geomorphology dynamic process influenced by oceanographic processes and can result in the accretion process and coastal erosion. This study aims to determine the dynamics of the process of coastal geomorphology and oceanographic factors that influence the process. This study uses the case with the analysis of dynamics of geomorphological and oceanographic processes that influence in the region penlitian. The research data in the form of tides, currents and sediments in coastal areas. The results of the study be a type of tidal Daily Single with water level Z0 = 55.90; (MSL) 69.14 cm; (HHWL) = 135.48 cm; (LLWL) = 0.78 cm. Waves as high as 0.62 meters and wave period 4.1 seconds. The waves come from the Northeast will burst burst as high as 0.81 meters at a depth of 0.78 meters. Breaking waves at an angle of 19.22 degrees to the shoreline, will result in flow velocity along the coast is 0.98 m / sec.Coastal geomorphology consists of rugged coastal hills of volcanic material composed of tuffaceous sand and clastic limestone and non clastics limestone and limestones; type of geomorphologys was coastal flat composed of silty sand; coastal river estuary composed of silty sand; coastal erosion occurs berm erosion. Geomorphology dynamic process influenced by longshore currents that cause abrasion dominant in the study area. Dinamika geomorfologi pesisir pantai tergantung pada batuan penyusun pesisir pantai dan proses oseanografi yang bekerja. Proses dinamika geomorfologi pesisir pantai di pengaruhi oleh proses oseanografi dan dapat berakibat terjadinya proses akresi dan erosi pesisir. Penelitian ini bertujuan mengetahui dinamika proses geomorfologi pesisir pantai dan proses faktor oseanografi yang berpengaruh. Penelitian ini menggunakan metode kasus dengan analisis dinamika proses geomorfologi dan oceanografi yang berpengaruh di daerah penlitian. Data penelitian berupa pasang surut, arus dan sedimen di wilayah pesisir pantai. Hasil penelitian berupa tipe pasang surut Harian Tunggal dengan elevasi muka air Z0 = 55,90; (MSL) 69,14 cm; (HHWL) = 135,48 cm; (LLWL) = 0,78 cm. Gelombang setinggi 0,62 meter dan periode gelombang 4,1 detik. Gelombang datang dari arah Timur Laut akan pecah pecah setinggi 0,81 meter pada kedalaman sebesar 0,78 meter. Gelombang pecah dengan sudut datang 19,22 derajat terhadap garis pantai, akan mengakibatkan kecepatan arus sepanjang pantai 0.98 m/detik. Geomorfologi pesisir terdiri dari pesisir pantai bukit terjal tersusun material volkanik pasir tufaan dan batu gamping klastik dan batu gamping non klastik; pesisir landai/datar tersusun pasir lanauan; pesisir pantai muara sungai tersusun oleh pasir lempungan; pesisir pantai erosi terjadi erosi berm. Proses dinamika geomorfologi dipenaruhi oleh arus longshore yang menyebabkan adanya dominan abrasi di daerah penelitian.

The Heavy Metal Contamination in Shallow Groundwater at Coastal Areas of Surabaya East Java Indonesia Baskoro Rochaddi; Warsito Atmodjo; Alfi Satriadi; Chrisna Adhi Suryono; Irwani Irwani; Sugeng Widada
Jurnal Kelautan Tropis Vol 22, No 1 (2019): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

The present study was conducted to assess the level of heavy metal contamination in shallow aquifer of Surabaya coastal areas. Six heavy metals (Arsenic, Mercury, Chromium, Lead, Cupper and Magnesium) of contaminant have been determined in the shallow groundwater. The samples were then analyzed by using Atomic Absorbent Spectrometry gas and followed by using the method of Standard Method Examination. The result indicated that shallow groundwater in Surabaya has been contaminated by Arsenic (0.243 ppm) and Magnesium (1.262 ppm). Another heavy metal such as Mercury, Chromium, Lead, and Cupper showed bellow detected. This study has proven the presence of heavy metal as specially Arsenic and Magnesium has been contain in shallow aquifer supplies in the coastal areas of Surabaya.

Pengaruh Kondisi Oseanografi Terhadap Pola Sebaran Sedimen Dasar di Perairan Mangunharjo, Kota Semarang Johanna R N D Purba; Heryoso Setiyono; Warsito Atmodjo; Muslim Muslim; Sugeng Widada
Indonesian Journal of Oceanography Vol 4, No 1 (2022): Indonesian Journal of Oceanography
Publisher : University of Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijoce.v4i1.13214

Perairan Mangunharjo merupakan perairan yang terletak di Kota Semarang dan banyak dijadikan sebagai tempat pusat berbagai kegiatan vital seperti perumahan penduduk, pertambakan, rekreasi dan tak kalah penting sarana perhubungan. Dinamika pesisir yang terjadi di Perairan Mangunharjo yaitu sedimentasi dan abrasi menjadi permasalahan yang sering terjadi. Penanganan dinamika pantai memerlukan kajian terkait sedimen dasar perairan untuk memperoleh solusi yang tepat terhadap permasalahan. Target yang ingin diperoleh dari studi ini untuk mengetahui pengaruh dari faktor oseanografi seperti arus, gelombang, angin, pasut dan lainnya terhadap pola sebaran sedimen dasar. Data penelitian yang digunakan berupa data sedimen dasar sebagai data pengukuran lapangan, sementara untuk data arus laut, gelombang laut, angin, pasang surut, batimetri, debit sungai bersumber data sekunder. Pengolahan data sedimen dasar menggunakan metode granulometri, pengolahan data gelombang dan angin menggunakan metode SMB dan data pasang surut diolah dan dianalisa menggunakan metode admiralty. Hasil penelitian diperoleh bahwa Perairan Mangunharjo didominasi oleh ukuran butir pasir, lanau, dan lempung yang tersebar pada kedalaman 1 - 5 meter. Persentase sebaran sedimen dengan jenis lempung lebih besar di setiap stasiun. Faktor oseanografi yaitu arus, gelombang dan pasang surut memiliki pengaruh terhadap persebaran dan jenis sedimen. Arus adalah faktor oseanografi yang paling berpengaruh terhadap sebaran sedimen dasar perairan Mangunharjo.

Analisis Abrasi dan Akresi di Muara Sungai Kali Bodri, Kabupaten Kendal Dinda Ayu Octaviana; Baskoro Rochaddi; Warsito Atmodjo; Petrus Subardjo; Muhammad Zainuri; Muh Yusuf; Azis Rifai
Indonesian Journal of Oceanography Vol 2, No 2 (2020): Indonesian Journal of Oceanography
Publisher : University of Diponegoro

Pesisir Kabupaten Kendal sebagai pesisir Muara Kali Bodri, dengan adanya angkutan sedimen yang terendap di muara sungai berpotensi terjadi proses sedimentasi. Morfologi pantai yang menjorok ke arah laut berpotensi terjadi abrasi, sehingga berdampak terhadap pola perubahan garis pantai. Tujuan penelitian adalah untuk mengetahui wilayah rentan abrasi/akresi pantai di Muara Sungai Kali Bodri periode tahun 2014 – 2019. Metode penelitian ini merupakan penelitian studi kasus dengan analisis secara kuantitatif dengan pendekatan multi temporal citra satelit menggunakan perangkat lunak Digital Shoreline Analysis System (DSAS). Data penelitian meliputi pasang surut, batimetri, gelombang, angin, nilai D50 sedimen dasar, garis pantai tahun 2014-2016 dengan citra Landsat 8 dan tahun 2016-2019 dengan Citra Sentinel 2A. Hasil penelitian menyatakan bahwa perubahan garis pantai pada tahun 2014-2016 terjadi akresi sebesar 12,80 ha dan abrasi sebesar 2,93 ha, sedangkan perubahan garis pantai pada tahun 2016-2019 terjadi akresi seluas 9.88 ha dan abrasi seluas 3.35 ha. Total perubahan garis pantai tahun 2014–2019 mengalami akresi pantai seluas 22,68 ha dan mengalami abrasi seluas 6,28 ha, sehingga disimpulkan proses akresi pantai lebih dominan seluas 16,40 ha. Coastal of Kendal Regency as the coast of Kali Bodri Estuary, with sediment transport in the river estuary has the potential to cause sedimentation. Beach morphology that protrudes towards the sea has the potential to cause abrasion, thus affecting the pattern of changes in the coastline. The purpose of this study was to determine the area of prone to abrasion/accretion of beaches in the Kali Bodri River in the period 2014 - 2019. This research method is a case study research with a quantitative analysis with a multi-temporal approach to satellite imagery using the Digital Shoreline Analysis System (DSAS) software. The research data includes tides, bathymetry, waves, wind, D50 values of basic sediments, coastlines in 2014-2016 with Landsat 8 imagery, and in 2016-2019 with Sentinel 2A imagery. The results of the study stated that changes in the coastline in 2014-2016 occurred accretion of 12.80 ha and abrasion of 2.93 ha, while changes in the coastline in 2016-2019 occurred accretion of 9.88 ha and abrasion of 3.35 ha. The total shoreline changes in 2014-2019 underwent beach accretion of 22.68 ha and experienced abrasion of 6.28 ha, which concluded that the beach accretion process was more dominant at 16.40 ha.

Pengaruh Arus terhadap Sebaran Horizontal Suhu dan Salinitas pada 3 Kedalaman yang Berbeda di Perairan Samudera Hindia Bagian Selatan Pulau Jawa Sagita Difa Wardhani; Agus Anugroho Dwi Suryo; Warsito Atmodjo; Elis Indrayanti; Baskoro Rochaddi
Indonesian Journal of Oceanography Vol 3, No 2 (2021): Indonesian Journal of Oceanography
Publisher : University of Diponegoro

Perairan Samudera Hindia bagian Selatan Pulau Jawa merupakan perairan yang dinamis karena dipengaruhi oleh sistem monsun yang memicu sistem arus musim. Perubahan kecepatan arus dapat menyebabkan pergerakan lapisan pada permukaan laut yang membangkitkan pengadukan dan percampuran secara horizontal sehingga kecepatan dan arah arus merupakan salah satu faktor penting penyebaran suhu maupun salinitas pada kolom perairan. Keterkaitan yang kompleks antar parameter oseanografi di perairan Samudera Hindia bagian selatan Pulau Jawa terutama kondisi arus, angin, suhu, dan salinitas sangat menarik untuk diteliti dan dipelajari. Tujuan penelitian ini yakni mengetahui pengaruh arus terhadap sebaran horizontal suhu dan salinitas pada mixed layer, thermocline/halocline, dan deep layer. Pada penelitian ini menggunakan data arus, suhu, dan salinitas bulanan (Januari 2014-Desember 2018) reanalysis dari Marine Copernicus. Data tersebut diolah menggunakan Interactive Data Language (IDL) dengan metode komposit dan korelasi pergrid. Berdasarkan hasil penelitian didapatkan bahwa arus permukaan Musim Peralihan 2 bergerak paling kencang mencapai 0,266 m/s, dengan suhu permukaan terpanas yakni 30oC pada Musim Peralihan 1 dan kadar salinitas tertinggi berada pada lapisan dalam mencapai 34,8-34,875 psu terutama saat Musim Peralihan 1. Pengaruh arus terhadap sebaran horizontal suhu dan salinitas pada mixed layer, thermocline/halocline, dan deep layer cukup lemah yang dibuktikan dengan semakin kencang arus maka nilai suhu belum tentu rendah dan nilai salinitas tinggi.

Co-Authors Abdillah Ranadipura Abyantara, Adwitiyadewi N. Adi Santoso Afidyah Vicky Antari Ahmad Fikri Delardi Al Ghifari, Hamas Alan Wardheni Alfi Satriadi Ali, Maulana Mukti Anindito Leksono Anindya Wirasatriya Anisa Nabila Anissa Cintya Andika Asri Anugrah Riskel Shabari Arifa, Adzkia Noerma Aris Ismanto Asri Wahyuningsih aufi Dina ‘Amalina Azis Rifai Azizi, Muhammad Iqbal B. Maria Beatrix Situmorang Bagaskoro Cahyo Fauzan Banjarnahor, Betty Baskoro Rochaddi Chrisna Adhi Suryono Daffa Dinan Ihsani El-Fath Dayinta Andayani Denny Nugroho S Denny Nugroho Sugianto Devi Yuni Sari Sihombing Dimas Nopriansyah Dinda Ayu Octaviana Durmont Siahaan Dwi Oktiarini Edi Wibowo Kushartono Edi Wibowo Kushartono Elis Indrayanti Erdian, Oldy Erfiko, Muhammad Fery Erna Dwi Pertiwi Fajri, Muhamad Faqih febiyan nursusty Fortina Qualifa, Fortina Fuji Anida Galuh Permatasari Gentur Handoyo Gentur Handoyo Ginnia Julianti Utomo Hadi R. Pranoto, Hadi R. Hariadi Hariadi Hariyadi Hariyadi Harjono, Rani Dewi Fortuna Heriyoso Setyono Heryoso Setiyono Hudan Baskoro, Hudan Ibrahim, Muh. Lintang Galih Ice Trisnawati Togatorop Indra Budi Prasetyawan Irwani Irwani Jarot Marwoto Jarot Marwoto Jeanny Elonica Newyeara Johanna R N D Purba Kastiyan Yudha Pratama Kunarso Kunarso Latifah Mitrayani Hanum Lilik Maslukah M. Furqon Aziz Ismail Maemonah, Maemonah Maris, Muhamad Ribhi Muh Dandi Firmansyah Muh Yusuf Muhammad Helmi Muhammad Helmi Muhammad Zainuri Muslim Muslim Muslim Muslim Muslim Muslim Muslim Muslim Nanda Rahmadi Novi Henis Zadia Nugroho Agus D Nurdianti, Amalia Kartika Nuriyati Nuriyati Ory Kristanto Pangastuti, Prima Riliayunda Parichat Wetchayont Petrus Subardjo Pratama Andika Rondi Pratama, Dhimas Prabu Priatin Hadi Wijaya Purwanto Purwanto Purwanto Purwanto Purwanto Purwanto Puteri Kesuma Dewi Putranto Kondang Wijaya Putri, Eka Salma Afifah Raden Roro Putri Arisa Raden Roro Putri Arisa Radhina Amalia Rahardjo Djati Ratih Wulan Bani Putri Ratna Damayanti Renny Eko Yuliarinda Rikha Widiaratih Rina Zuraida Rohma Desi Thirtasari Saâ€™adah, Nailis Sagita Difa Wardhani Samudera Adi Bramastya Satriadi, Alfi Satriadi Senopati Satya Suprapto, Senopati Satya Setiaji Bismoko Shabari, Anugrah Riskel Shastya Addienda Puspitasari Shinta Oktaria Yudowaty Shofian, Tyandi Siddhi Saputro Siddhi Saputro Siti Munawaroh Siti Zulaykha Sri Yulina Wulandari Srisejati, Rahma Aenea Suci, Dwitya Rahma Sugeng Widada Sugeng Widada Taufiq Hidayat Tezar Rafandi Tiara Asmika Sari Tiatama, Sativa Haliza Tribhaskoro, Whisnu Tulus Aldrian Siregar Tyandi Shofian Valensia Enzeline Enzeline, Valensia Enzeline Varrent Rivai Aclicyo Lahopang Vera Chandra Puspitasari Wicaksono, Pulung Puji Widiaratih, Rikha Widodo Setiyo Pranowo Widodo Setiyo Pranowo Wijaya T, M Iskandar Wijayatno, Muhammad Farrel Satyatma

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