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Ima Nurmalia Permatasari
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jtropimar@hangtuah.ac.id
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Program Studi Oseanografi, Fakultas Teknik dan Ilmu Kelautan, Universitas Hang Tuah Jl. Arif Rahman Hakim No. 150, Sukolilo, Keputih, Surabaya 60111
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Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar)
Published by Universitas Hang Tuah
ISSN : 26563150     EISSN : 26567091     DOI : http://dx.doi.org/10.30649/jrkt.v2i2
Core Subject : Science, Social,
Earth & Planetary Sciences Energy Environmental Science
aim: Researchers and teachers for publishing the original articles of review articles Scope: Oceanography Physics, Geological Oceanography, Marine Chemistry and Marine Biology, Marine Ecology and Pollution, Marine Biotechnology, Marine Remote Sensing, Marine Geographic Information Systems, Hydrography, Marine Meteorology, Marine Acoustics, and coastal and marine resource management.
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Oseanografi
Articles 5 Documents
 1 
Search results for , issue "Vol 5 No 1 (2023): April" : 5 Documents clear
Karakteristik Multitemporal Arus Permukaan Laut di Perairan Tuban, Jawa Timur Muhammad Tezar; Mifta Irmayunita; Ahmad Mualim; Faruq Faruq; Luhur Moekti Prayogo
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.v5i1.53

Abstract

Sea currents are the mass transfer of water from one place to another caused by wind, density differences, and tides. In general, the characteristics of ocean currents in Indonesian waters are influenced by wind and tides. In shallow waters (coastal areas), ocean currents can be generated by ocean waves, wind, and tides. Meanwhile, tides are the main driving force in narrow and semi-enclosed waters (straits and bays). This study aims to determine the multitemporal differences in current movement patterns in 2010-2012 in the waters of Tuban, East Java. Research data is obtained from NOAA and calculated direction and speed, and then the results are presented in the form of a map. From the research results that have been done, it can be concluded that the current velocity in the waters of Tuban in 2010-2012 is relatively the same (the difference in current speed is not significant). In 2010 and 2011, the average current speed was 0.06 m/s, where the current moved from west to east and north. Then in 2012, the average current speed was 0.11 m/s, where the current moved from west to east. It is necessary to conduct a more in-depth study to determine the effect of tides on current movement, especially in shallow waters. In addition, further research is expected to use data from survey results directly in the field for validation so that research results will be more accurate.
Identifikasi Jenis-Jenis Mangrove Di Pantai Ya’ang, Desa Labuhan, Kecamatan Brondong, Kabupaten Lamongan Raka; Nor Sa’adah; Perdana Ixbal Spanton M; Amir Yarkhasy Yuliardi
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.v5i1.58

Abstract

Brondong District, Lamongan Regency has many types of mangroves in the coastal area and has a coastline reaching 47 km, Lamongan Regency and a mangrove forest area of around 53.37 Ha.This research aims to determine the types and characteristics of mangroves. The method used is explorative survey.The results of the study showed that Brodong District, Lamongan Regency had various types of mangroves as many as 6 types of mangroves consisting of Avicennia marina, Avicennia alba, Rhizophora mucronata Rhizophora stylosa, Bruguiera gymnorrhiza and Sonneratia alba.
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.

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