La Ode Nurman Mbay, La Ode Nurman
Badan Penelitian dan Pengembangan Kelautan dan Perikanan, Jakarta, Indonesia

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JAVA COASTAL CURRENT AT NORTHWEST AND SOUTHEAST MONSOON IN SOUTHWEST SUMATRA Mbay, La Ode Nurman; Nurjaya, I Wayan
Widyariset Vol 14, No 2 (2011): Widyariset
Publisher : LIPI-Press

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Abstract

The Java Coastal Current (JCC) is valuable information since its supplies water mass to South Indonesian water. The data analysis was done using temperature, salinity and depth informations from CTD (Conductivity, Temperature, and Depth). Those informations was calculated based on Neuman and Pierson (1966) with 600 db in reference level, in order to obtain the dynamic topography and geostrophy velocity. The results showed that there was a dynamic depth divergence between shore and the off shore, both was occured in Northwest monsoon and Southeast monsoon. Hence it was acting as a trigger of the geostrophy current toward Southeast with maximum velocity was 18.81 cms -1 and 1.53 sv of transport volume.
Identifikasi Massa Air Di Perairan Timur Laut Samudera Hindia Ayubi, M. Albab Al; Surbakti, Heron; Mbay, La Ode Nurman
Maspari Journal Vol 5, No 2 (2013): Edisi Juli
Publisher : UNIVERSITAS SRIWIJAYA

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Abstract

The northeast Indian Ocean is a region crossed by the monsoon winds and bordered by mainland on northern and eastern side that allegedly the water mass is influenced by these two factors. This research aims to study the vertical dan cross section distribution of physical parameters such as temperature, salinity, and density and also to identify the types of water masses in the region. The data used are the data of temperature, salinity, and density during 2007-2010 is obtained from sensors located on spacecraft of ATLAS Mooring. There are six stations located on the 90oE and from 0-15 oN, with 4 year observation and there are 4 periods each year. The results of observations of temperature on the surface indicates the period from December to February and March to May have a similar pattern. While the pattern in the period from June to August is similar to September-November. In other hand, the temperatures around depth of 140 m to the bottom shows the same pattern throughout the year. Value of the sea surface temperature of the period from March to May is generally the highest. Observations of sea surface salinity and water column generally are the same in each period, the salinity values decreased from a low-latitude station towards the high-latitude stations. The differences found are the highest surface salinity values are more common in the period from December to February, which is found on the station I and III. The result of value sea surface density observations show a decline pattern of low-latitudes stations in to higher latitudes stations throughout the year, or a pattern that tends to the same of salinity pattern. Analysis of the TS diagram refer to Wyrtki (1961) and Emery (2003) indicates there are some type of water masses, ther are namely the Bengal Bay Water (BBW), South Indian Central Water (SICW), Indian Equatorial Water (IEW), Subtropical Lower Water (SLW), and Northern Salinity Minimum (NSM). Those water masses is found in every period, only period from December to February have differrent type of water masses, that is the Arabian Sea Water (ASW).Keywords: ATLAS Mooring, Diagram TS, Indian Ocean, Water Mass
SIMULASI POLA ARUS LAUT DUA DIMENSI DI PERAIRAN SEKITAR NUSA PENIDA, BALI Nugraha, R. Bambang Adhitya; Surbakti, Heron; Risandi, Johan; Mbay, La Ode Nurman
Jurnal Kelautan Nasional Vol 9, No 1 (2014): APRIL
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jkn.v9i1.6200

Abstract

Sirkulasi arus laut dua dimensi di sekitar perairan Nusa Penida, Bali telah disimulasikan dengan menggunakan pemodelan numerik hidrodinamika dengan tujuan untuk mengetahui pola arus di lapisan permukaan sekitar perairan Pulau Nusa Penida, Bali. Model numerik difokuskan pada profil kecepatan horizontal dan pola sirkulasi arus permukaan yang dominan dipengaruhi oleh pola pasang surut di daerah tersebut. Hasil komputasi tersebut divalidasi dengan metode Langrangian dari sebuah coastal drifter yang mengikuti pergerakan arus pada saat pengukuran lapangan. Pola arus laut perairan Nusa Penida sangat dipengaruhi oleh kondisi dasar perairan yang dangkal dan pola pasang surut (semidiurnal). Kecepatan rata-rata arus laut di perairan Nusa Penida berkisar antara 0.1-0.95 m/s sedangkan kecepatan maksimum di beberapa titik mencapai kisaran angka 2-2.5 m/s. Berdasarkan diagram probabilitas kecepatan arus laut selama setahun, terdapat 5 titik pengamatan yang memiliki kecepatan arus di atas 1 m/s yang dapat dijadikan patokan dalam pengelolaan dan pemanfataan sumber daya pesisir dan laut di sekitar perairan Nusa Penida.
KAJIAN KONSEP FISHING ECOPORT UNTUK PENGEMBANGAN PELABUHAN PERIKANAN DI INDONESIA Mbay, La Ode Nurman; Nugraha, R. Bambang Adhitya; Kusyanto, Djoko
Jurnal Kelautan Nasional Vol 9, No 3 (2014): DESEMBER
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jkn.v9i3.6213

Abstract

Mempertahankan mutu produk perikanan adalah hal yang urgent harus dilakukan terkait adanya beberapa kasus penolakan produk ekspor perikanan Indonesia oleh beberapa negara tujuan ekspor seperti Jepang, Uni Eropa dan USA.  Kementerian Kelautan dan Perikanan (KKP) menegaskan bahwa keamanan pangan harus dijamin sepanjang rantai produksi berlangsung untuk tetap terus meningkatkan kualitas produk perikanan. Oleh karena itu, KKP perlu mengoptimalkan fungsi pelabuhan perikanan yang merupakan ujung tombak dan prime mover dalam kegiatan pengelolaan dan pemanfaatan sumberdaya ikan dan lingkungannya mulai dari praproduksi, produksi, pengolahan, dan pemasaran. Salah satu konsep yang akan diterapkan oleh KKP adalah fishing ecoport yang mengadop konsep negara-negara Uni Eropa dalam pengelolaan lingkungan pelabuhan untuk peningkatan produksi perikanan yang bermutu dengan berpegang pada prinsip biosecurity dan tracebility produk yang dihasilkan. Pelabuhan perikanan yang menjadi kawasan percontohan penerapan konsep fishing ecoport ini adalah Pelabuhan Perikanan Samudera (PPS) Bitung.