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All Journal Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Jurnal Riset Kelautan Tropis (J-Tropimar)
Supriyatno Widagdo
Universitas Hang Tuah
Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Energy Environmental Science

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POLA SEBARAN SEDIMEN DI KOLAM DERMAGA JAMRUD NILAM BERLIAN DAN MIRAH DI PELABUHAN TANJUNG PERAK,SURABAYA Gea Amara Sasi; Rudi Siap Bintoro; Supriyatno Widagdo
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 2 No 1 (2020): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v2i1.38

Abstract

Tanjung Perak Surabaya, sebagai salah satu Pelabuhan yang sangat ramai berpotensi mengalami pendangkalan yang disebabkan oleh pengendapan atau penumpukan sedimen suspense maupun material sedimen lainnya yang terbawa oleh arus yang menuju masuk ke Pelabuhan. Tujuan Penelitian ini adalah untuk mengetahui Pola sebaran sedimen. Data penelitian meliputi data utama dan data pendukung, data utama berupa sampel sedimen grab, sampel sedimen trap, peta batimetri, data pendukung berupa arus, pasut, dan konsentrsi TSS. Metode yang digunakan dalam penelitian metode sampling dan menganalisis hasil sampel sedimen di laboratorium. Hasil dari 9 stasiun pengamatan di Pelabuhan Tanjung Perak menunjukan Jenis sedimen yang didominasi oleh Silt Clay Loam,, nilai konsentrasi TSS 0.32-0.07 (g/l). Kecepatan laju sedimentasi yang terakumulasi berkisar antara 0.124-1.233(g/ml/hari). Overlay peta batimetri menunjukkan adanya sebaran endapan sedimen di area pintu masuk Pelabuhan tanjung Perak(tengah).
SEBARAN SALINITAS DAN TEMPERATUR PERMUKAAN PADA SAAT SPRING TIDE DAN NEAP TIDE DI ESTUARIA SUNGAI PORONG, SIDOARJO Via Hofsotus Sa’adah; Supriyatno Widagdo
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 2 No 1 (2020): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v2i1.39

Abstract

Wilayah perairan estuari sungai Porong perairan yang merupakan campuran massa air tawar dan air laut. Campuran massa air tersebut sangat terkait oleh distribusi salinitas, temperatur tehadap pasang surut. Tujuan dari penelitian ini yaitu untuk mendeskripsikan sebaran salinitas dan temperatur pada saat pasang dan surut. Metode yang digunakan dalam penelitian ini adalah pengambilan sampel secara insitu dan diolah menjadi peta tematik menggunakan software ArcMap 10.0 untuk mengetahui persebaran salinitas dan temperatur di perairan Estuari Sungai Porong. Nilai sebaran salinitas tertinggi saat spring tide sebesar 12‰, sedangkan sebaran salinitas terendah saat neap tide sebesar 1‰, saat air pasang bergerak kearah hulu, pengangkutan salinitas dari air asin masuk ke sungai pada kondisi pasang memberikan pengaruh naiknya nilai salinitas, begitu juga sebaliknya, saat surut air dari daratan masuk ke sungai membawa air tawar mengalir ke muara. Sebaran temperatur permukaan terendah saat spring tide 28.57°C, dan tertinggi saat neap tide 36.59°C. saat pasang air laut membawa temperatur yang rendah ke arah muara, begitupun saat surut air pasokan dari daratan menyebabkan temperatur permukaan di sungai menjadi hangat.
Pola Angin dan Kaitannya terhadap Karakteristik Tinggi Gelombang di Perairan Labuan Bajo, NTT Prima Aris Wardhani; Supriyatno Widagdo; Viv Djanat Prasita
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 1 (2021): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i1.37

Abstract

Labuan Bajo waters are marine tourism location that need meteorological and wave height information. The purpose of this research is determining local and regional wind patterns also their connection to wave height characteristics. The prosedure of this research is processing wind data using WR Plot and ArcGIS, then correlation analysis between wind and wave height using SPSS. The results showed that the dominant land breeze blows from South with an average speed of 2.18 knots while the sea breeze blows from Southwest, West, Northwest to North with an average speed of 5.83 knots. Regional wind patterns are influenced by seasonal wind patterns. In the West Season tends blow from West and Northwest with an average speed of 2.49 knots, in the East Season tends to blow from East and Southeast with an average speed of 2.64 knots while in the Transition Season tends to blow from various directions. On a daily, the waves tend to be high at 07:00 with an average of 1.39 m while at 19:00 tend to be low with an average of 0.26 m. Seasonally the highest wave height occurs in the West Season with an average of 1.35 m and the lowest wave height occurs in Transition Season II with an average of 0.79 m. Regional winds and wave heights have a moderate to strong connection in the East Season (R = 0.438-0.639).
Fenomena Upwelling di Perairan Spermonde Sulawesi Selatan Dyan Viegas Wibisono; Supriyatno Widagdo; Viv Djanat Prasita
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 4 No 2 (2022): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v4i2.54

Abstract

Spermonde waters are waters that surround the Spermonde islands with shallows located in the southwest of South Sulawesi which is in the tropics and crossed by the equator which causes these waters to experience two different seasons, namely the west and east monsoons. The purpose of this study was to analyze the upwelling phenomenon in spermonde waters. Spermonde waters in the east monsoon (June-August) have the potential for upwelling because they have strong winds and currents so that there is an Ekman transport that causes the deflection of the current to move from southeast to west. Indications of upwelling can be seen from the increase in the temperature and salinity of the water mass from the inside that occurs at all stations so that it is strong for upwelling to occur. The pattern of chlorophyll-a concentrations in the Mediterranean and upwelling seas that occur is weak because the highest chlorophyll is near the coast due to the influence of river water and several other industrial activities so that off shore area shaven ottoo high chlorophyll whichis associated with adecrease in sea surface temperature.
Variabilitas Temperatur Permukaan Laut, Salinitas, dan, Curah Hujan Pada Periode El Niño-Southern Oscillation (Enso) di Perairan Selat Madura Jennifer Ellen Toding; Supriyatno Widagdo; Rudi Siap Bintoro
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 4 No 1 (2022): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v4i1.60

Abstract

The variability of temperature, salinity and rainfall in the Indonesian region is strongly influenced by the El Niño-Southern Oscillation (ENSO) phenomenon so that this study aims to describe the characteristics of the ENSO phenomenon, compare and analyze the characteristics of temperature, salinity and rainfall under normal conditions and changes due to the ENSO phenomenon in the Madura Strait. This study used a descriptive method by collecting data using secondary data and making a description of the observed phenomenon. Data required for 12 years from 2010-2021. The results showed that the variability of temperature measured during the 2010-2021 period showed the highest temperature values were in the closed waters of the Madura Strait with an average of 28.64°C and the lowest were in the central waters with an average value of 28.59°C. The highest rainfall value is in closed waters with an average of 6.06 mm and the lowest is in central waters with an average value of 5.562 mm. The highest salinity is in open water with an average value of 32.06 ppt while the lowest salinity is in closed water with an average of 31.42 ppt. The highest temperature and rainfall are generally found when the La Niña phenomenon is taking place, while the lowestntemperature and rainfall are found during the El Niño phenomenon. The highest salinity is generally found during the El Niño phenomenon, while the lowest salinity occurs during the La Niña phenomenon.
Distribusi Salinitas dan Temperatur Permukaan Berdasarkan Angin dan Arus di Selat Madura Muhamad Samodro Abdulrohiim Rohiim; Supriyatno Widagdo; Viv Djanat Prasita
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 4 No 1 (2022): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v4i1.64

Abstract

Salinity and Sea Surface Temperature (SST) are important parameters in oceanographic and climate studies. The value of salinity at sea level is caused by precipitation and evaporation of fresh water and is influenced by the entry of fresh water into sea waters. In addition, physical parameters such as wind, ocean currents, and rainfall can also affect horizontal salinity values. Several factors that affect SST are: depth, intensity of sunlight, precipitation and evaporation, as well as wind and air circulation. The purpose of this study was to analyze the effect of seasonal wind and current patterns on salinity and SST in the Madura Strait. The period studied was from 2010 to 2020 with the main parameters analyzed were salinity, SST, wind and currents as well as rainfall and river flows that emptied into the waters as supporting parameters. The results of this study showed that the minimum average salinity value occurred in the transition season at the beginning of the year with a value of 31.8 0/00 and the highest value of 32.77 0/00 occurred in the transition season at the end of the year. And for the lowest average SPL value occurred in the east monsoon season with a value of 28.38 oC and the highest SPL value of 30.17 oC which occurred in the transition season at the beginning of the year.
Pasang Surut dan Arus Pasang Surut di Area Dermaga Pelabuhan Perikanan Pantai, Muncar, Banyuwangi Rifqy Firdausyah; Rudi Siap Bintoro; Supriyatno Widagdo
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 5 No 1 (2023): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v5i1.66

Abstract

Hydro-Oceanographic Parameters are the main factor in supporting the development and periodic maintenance of a port. The research was conducted in November 2021. The data in the study were obtained from observations in the field. The data used in this research is in the form of tidal data and tidal currents. Based on the results of data processing for 1 month in November 2021, the Muncar waters have a mixed tide prevailing semi-diurnal type. The highest tide value during November occurred on November 17 2021 at 22:00 WIB with a water level of 2.6 m and the lowest tide occurred on November 18 2021 at 05:00 WIB with a water level of 0.4 m. Currents move from the Bali Strait towards the Indian Ocean. Just before high tide, the tidal currents move from east to west (entering the anchor pond) with a speed of 0.40 – 0.64 m/s. At low tide, the current moves from West to East (leaving the anchor pond) with a speed of 0.42 – 0.58 m/s.
Karakteristik Curah Hujan Monsunal Pada Periode ENSO dan IOD (Studi Kasus: Lampung, Surabaya dan Jayapura) Sisca Ayu Renitasari; Supriyatno Widagdo; Rudi Siap Bintoro
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 5 No 1 (2023): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v5i1.69

Abstract

The variability of rainfall in the Indonesian region is strongly influenced by the ENSO and IOD phenomenon. The purpose of this study is to describe the characteristics of the ENSO and IOD phenomena over a period of 31 years, compare the characteristics of rainfall under normal conditions and characteristics due to ENSO and IOD phenomenon, and analyze the monsoon rain area (Lampung, Surabaya, Jayapura) which are more influenced by ENSO and IOD phenomenon. The results showed that in the first decade to the second decade the incidence of La Niña decreased by 3.4% and then increased in the last decade by 4.3%, as the dominant La Niña incidence in weak intensity has increased every decade. At the time of the IOD phenomenon in the first decade to the second decade there was an increase in Positive IOD of 15.2% and then an increase which tends to be drastic in the last decade by 27.2%. In the Lampung and Surabaya areas, when El Niño and Positive IOD occur, the beginning of the rainy season tended to come later, meaning the dry season was longer, which occurred from May to November. When La Niña and Negative IOD occurred, the rainy season began earlier in June to November and experiences the rainy season throughout the year. In the Jayapura area, rainfall tended to occur throughout the year during the ENSO and IOD phenomena. The influence caused
Karakteristik Cuaca Maritim untuk Keselamatan Pelayaran di Perairan Popoh, Tulungagung Tasya Olivia Rinekso; Supriyatno Widagdo; Rudi Siap Bintoro
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 5 No 1 (2023): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v5i1.70

Abstract

Popoh Waters has a bay that contains a fishing boat port, a Fish Auction Place (TPI), and a Fishing Port (PPI). Indonesia has many cases of fishing boat accidents caused by bad weather. It is important to know maritime weather information to minimize fishing boat accidents. This study aims to identify the characteristics of wind, rainfall, sea waves in each season, identify the seasons that are dangerous for fishing boats and their effects on fishermen's catches. The results of the processing showed that Popoh waters had wind characteristics with a category that can endanger fishing boats in the East season with a top speed of 8.41 m/s. The characteristic of rainfall which had the highest rainfall was the West monsoon with the highest intensity of 87 mm. The characteristics of the waves in Popoh waters had waves that could endanger the sailing of fishing boats in the East season with the highest wave condition of 1.93 m.
Co-Authors Alfian Erfanda Ananda Rizki Taruna Dyan Viegas Wibisono Eko Prasetyo Gea Amara Sasi Jennifer Ellen Toding Muhamad Samodro Abdulrohiim Rohiim Ovia Mahsunah Prima Aris Wardhani Rahyono Rifqy Firdausyah Rizki Lindra Pratama Rudi Siap Bintoro Sisca Ayu Renitasari Tasya Olivia Rinekso Via Hofsotus Sa’adah Viv Djanat Prasita