scholarly journals Some Main Causes of Marine Pollution in Vietnam

2019 ◽  
Vol 4 (3) ◽  
pp. 170-175 ◽  
Author(s):  
Cong Tri Tran ◽  
Phuoc Quy Phong Nguyen

Vietnam is a coastal country located in the central region of Southeast Asia, Vietnam has a sea area connecting the important sea transport route between the Indian Ocean and the Pacific Ocean, especially the East Vietnam Sea are oil and container shipping routes from other countries to Japan, South Korea and China, which are consuming huge amounts of energy. Vietnam is in a position to have a potential for marine economic development such as shipbuilding, sea transport, port development, and waterworks, marine product exploitation, marine and oil and gas resource exploitation, marine tourism and islands, sea services, and other related industries. With such a potential position, the exploitation of the sea and the protection of the marine environment is an extremely important issue.

2021 ◽  
Vol 13 (5) ◽  
pp. 1013
Author(s):  
Kuo-Wei Yen ◽  
Chia-Hsiang Chen

Remote sensing (RS) technology, which can facilitate the sustainable management and development of fisheries, is easily accessible and exhibits high performance. It only requires the collection of sufficient information, establishment of databases and input of human and capital resources for analysis. However, many countries are unable to effectively ensure the sustainable development of marine fisheries due to technological limitations. The main challenge is the gap in the conditions for sustainable development between developed and developing countries. Therefore, this study applied the Web of Science database and geographic information systems to analyze the gaps in fisheries science in various countries over the past 10 years. Most studies have been conducted in the offshore marine areas of the northeastern United States of America. In addition, all research hotspots were located in the Northern Hemisphere, indicating a lack of relevant studies from the Southern Hemisphere. This study also found that research hotspots of satellite RS applications in fisheries were mainly conducted in (1) the northeastern sea area in the United States, (2) the high seas area of the North Atlantic Ocean, (3) the surrounding sea areas of France, Spain and Portugal, (4) the surrounding areas of the Indian Ocean and (5) the East China Sea, Yellow Sea and Bohai Bay sea areas to the north of Taiwan. A comparison of publications examining the three major oceans indicated that the Atlantic Ocean was the most extensively studied in terms of RS applications in fisheries, followed by the Indian Ocean, while the Pacific Ocean was less studied than the aforementioned two regions. In addition, all research hotspots were located in the Northern Hemisphere, indicating a lack of relevant studies from the Southern Hemisphere. The Atlantic Ocean and the Indian Ocean have been the subjects of many local in-depth studies; in the Pacific Ocean, the coastal areas have been abundantly investigated, while offshore local areas have only been sporadically addressed. Collaboration and partnership constitute an efficient approach for transferring skills and technology across countries. For the achievement of the sustainable development goals (SDGs) by 2030, research networks can be expanded to mitigate the research gaps and improve the sustainability of marine fisheries resources.


1984 ◽  
Vol 37 (1) ◽  
pp. 94-103 ◽  
Author(s):  
A. N. Ferrar

This second Matthew Flinders Memorial Lecture, in a series sponsored jointly by the Royal Institute of Navigation and the Hydrographic Society with the cooperation of Lincolnshire and Humberside Arts was presented at the University of Hull on 11 May 1983 with Sir John Dudding, Chairman of Lincolnshire and Humberside Arts in the Chair. The first lecture, presented by Rear-Admiral G. S. Ritchie in April 1974 (Journal27, 3) on the bicentenary of the birth of Matthew Flinders, described the hydrographic work of this exploring navigator. Miss Ferrar concentrates on the graphical records of Flinders's Australian voyages.When Marco Polo made his journey to China, overland from Venice in the thirteenth century, the lands around the Pacific Ocean were wholly unknown to Europeans. But the silks and spices with which he returned sowed the seeds of the quest for a sea route to the ‘Spice Islands’ which was to be one of the mainsprings of exploration for nearly 500 years. The Spaniards crossed the Atlantic. But instead of finding themselves on the coast of Asia as they had expected they discovered the lands (and the wealth) of the Aztecs and Incas, and their explorations extended along the Pacific coasts of Central and South America from Mexico to Peru. The Portuguese found their way around southern Africa and across the Indian Ocean to South-east Asia, where they attained their objective and established a lucrative trade with the Spice Islands. Sailing ship routes depend upon the direction of prevailing winds, so the outward voyage took them eastwards from the Cape of Good Hope and then northwards to their destination. The homeward crossing of the Indian Ocean was in more northerly latitudes.


Zootaxa ◽  
2010 ◽  
Vol 2667 (1) ◽  
pp. 64 ◽  
Author(s):  
SABYASACHI SAUTYA ◽  
KONSTANTIN R. TABACHNICK ◽  
BABAN INGOLE

A new species of Hyalascus is described from the submarine volcanic crater seamount of Andaman Back-arc Basin, Indian Ocean. The genus was previously known in the Pacific Ocean only.


2008 ◽  
Vol 25 (6) ◽  
pp. 990-1003 ◽  
Author(s):  
Ann Gronell ◽  
Susan E. Wijffels

Abstract This paper describes a method consisting of both automated statistical screening and manual quality control through expert visual inspection, which produces a historical ocean temperature archive of high quality—that is, nearly all profiles are unique (duplicate elimination) and 95% of bad data is eliminated. The complete process involves comprehensive duplicate elimination, an unreasonable gradient check, and statistical screening to distill out suspect profiles, which are then only eliminated (or partially so) during an expert manual visual inspection step. Statistical screening was optimized using an archive of known quality. Two iterations of statistical screening were required to identify the bulk of the bad data. Of an archive of about 121 000 profiles, the authors found they had to manually inspect 35% of profiles to remove 95% of the bad data. While costly, they argue such an effort is worthwhile so that the historical ocean temperature archives, which have cost the global community millions of dollars to obtain, are made more immediately useful for climate and ocean sciences. An archive of upper ocean temperature profiles from the Indian Ocean is near completion and extensions into the Pacific Ocean have begun.


1992 ◽  
Vol 26 (4) ◽  
pp. 641-661 ◽  
Author(s):  
G. V. Scammell

For centuries Europeans were fascinated by rumours and legends of the wealth and wonders of the Orient and by stories of the supposed existence there of realms free from all those tiresome taboos and restrictions that prevailed in the West. Long before the arrival of Vasco da Gama, renegades were serving the Mongols in Iran and Marco Polo had been in the entourage of the Grand Khan himself. The Portuguese pioneers were disconcerted to encounter in 1501 a certain Benvenuto de Abano who had spent the previous twenty-five years sailing the seas of Asia, and his contemporary, the Muslim Khoja Safar Salmâni, an erstwhile Genoese or Albanian. But this was nothing compared with the flow that followed western penetration of the maritime economy of the East, scattering European adventurers and outlaws throughout the Orient anywhere from the shores of the Persian Gulf to those of the Pacific Ocean. And very soon these hopefuls were joined by European pirates, some working from ports in their mother countries, some from the Caribbean and North America, and some from bases in the Indian Ocean, of which Madagascar was, according to taste, the most celebrated or the most notorious. Such men, frequently of remarkable skills and fearsome abilities, exercised a considerable influence on the maritime history of the East in the early modern centuries, and it is with the origins, aspirations and activities of these elusive—indeed often anonymous—but nevertheless highly significant figures that this paper is concerned.


2017 ◽  
Vol 14 (2) ◽  
Author(s):  
Yogo Pratomo ◽  
Widodo Setiyo Pranowo ◽  
Sahat Monang Simanjuntak

Selat Lombok merupakan salah satu perlintasan massa air laut dunia, yang mengalir dari Samudera Pasifik menuju ke Samudera Hindia yang disebut sebagai Arus Lintas Indonesia (ARLINDO). Hal ini terbukti dengan adanya komponen harmonik periode panjang yang di pengaruhi oleh Matahari (SA, SSA), dan dipengaruhi Bulan (MSF). Hasil rekaman mooring selama 1,5 tahun, selat ini memiliki kecepatan arus harmonik rata-rata sebesar 0,25219 m/dt di kedalaman 100 meter. Arus laut merupakan salah satu energi baru terbarukan yang dapat di manfaatkan sebagai pembangkit listrik. Arus laut diolah dengan menggunakan modul toolbox T-Tide 1,3 beta, dan menghasilkan arus harmonik dan arus non harmonik. Berdasarkan komputasi skenario pertama, dengan menggunakan turbin Helix LC 500 dan menghasilkan listrik 3,56 KW (harmonic), dan 1,86 KW (non harmonik) dengan kecepatan arus terbesar terjadi pada kedalaman 146,31 meter. Nilai kecepatan arus rata-rata terdapat pada kedalaman 178,31 meter dengan daya yang dihasilkan sebesar 92,17 W pada kondisi arus non harmonik. Kecepatan arus rata-rata pada kondisi arus harmonik terdapat pada kedalaman 162,31 meter, dengan daya yang dihasilkan sebesar 32,943 W.Kata Kunci : arus laut, energi baru terbarukan, Selat Lombok, INSTANT West Mooring.Lombok Strait is one of seawater mass outlet, flowing from the Pacific Ocean toward the Indian Ocean called as Indonesian Through Flow (ITF). It is proven by long period of harmonic components influenced by sun (SA, SSA) and moon (MSF). The result of mooring record for 1.5 years, this strait has average speed of the harmonic ocean current is 0.25219 m/s at 100 meters water depth. Ocean current is one of renewable energy that can be used for generating power electric. Ocean currents processed by using T-tide matlab toolbox 1.3 beta to identified the harmonic and non harmonic currents. Based on first scenario of the computer conversion, by using a Helix turbine LC 500 and produce an electricity energy about 3.56 KW (harmonic), and 1.86 KW (non harmonic) ocean currents, with the maximum current speed at the 146.31 meters water depth. The average of current speed average found at 178.31 meters water depth, and it produces a power of 92.17 W (non harmonic). The current speed averages from the harmonic condition is found at 162.31 meters water depth, which can produce a power about 32.943 W.Keyword : ocean currents, potential renewable energy, Lombok Strait, INSTANT West Mooring.


Eos ◽  
2015 ◽  
Vol 96 ◽  
Author(s):  
Christina Reed

Despite indications that the Pacific Ocean is helping to take up the world's missing surface heat, it is not storing the heat; oceanographers now find the ocean has moved heat over to the Indian Ocean.


2020 ◽  
Vol 5 (2) ◽  
pp. 183
Author(s):  
Domidoyo Marthinus

Nusantara adalah suatu wilayah kepulauan yang berada di antara dua benua, Asia dan Australia, sebagai benua yang berada dalam dua samudera raya yang di kenal sebagai samudera India dan samudera Pasifik. Kepulauan ini memotong ekuator dari 95 derajat sampai 141 derajat bujur timur. Penduduk pulau ini menarik perhatian berbagai masyarakat dari penjuru dunia, karena tanah subur dengan  limpahan rempah-rempah dan corak masyarakat yang akomodatif dengankecenderunganfriendly dengan kehadiran tamu. Hal ini memicu para pedagang untuk berniaga dan sekaligus bersyiar atau berdakwah. Orang India yang beragama Hindu dan Buddha menjadi orang pertama yang berlabuh untuk berdagang dan sekaligus memperkenalkanagama yang di anut. Hal ini menjadikan identitas sangat bagus untuk diperbincangkan. Sebagai pendatang dantamu di Nusantara, orang-orang India membawa segala identitas termasuk budaya dan agama. Paper ini menjelaskan cara agama dari India hidup dan besar di tengah masyarakat.[The Nusantara is an archipelago located between two continents, Asia and Australia, as a continent located in two major oceans known as the Indian Ocean and the Pacific Ocean. These islands intersect the equator from 95 degrees to 141 degrees east longitude. The inhabitants of the island attract the attention of various people from all over the world because the land is fertile with an abundance of spices and an accommodating community style with a friendly inclination to the presence of guests. It triggered the traders to trade and simultaneously spread or preach. Indians who were Hindus and Buddhists were the first to anchor to trade and at the same time introduce the religion adherence embraced. It makes identity important to talk about. As guests and guests in the archipelago, Indians carry all identities, including culture and religion. This paper explains the way religions from India live and grow in society.]


Sign in / Sign up

Export Citation Format

Share Document