Một số thí nghiệm về dòng chảy river plumeThis paper presents an overview of buoyant gravity currents and RPs, and some experimental results and analyses of experiments of small scale RPs in laboratory with a flume model. In the experiments, the flume is filled with salt water to model sea water and to create the ambient of the RP; fresh water is released at one side of the flume to cre...
20 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 720 | Lượt tải: 0
Individual variation of toxicity in three Vietnamese toxic marine puffer speciesThe results of survey on the toxins in three species marine puffers responsible for many poisonings in Vietnam revealed that they possess both TTX and STX, in which TTX is as dominant toxin of all poisoning cases. The toxicity in these species is different depending on individual and tissue. This finding shows that toxin component and toxicity ...
13 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 822 | Lượt tải: 0
Thành phần loài và phân bố của rong biển quần đảo Lý Sơn, Quảng NgãiLy Son is an archipelago with two islands - Ly Son and An Binh which are belonging to Quang Ngai province in Central Vietnam. Until now, there have been few studies on seaweeds at Ly Son. This article presents results of two field surveys, conducted in November, 2009 and May, 2010 under the research project “Surveying and assessing status of ec...
13 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 733 | Lượt tải: 0
Some meteo - Hydro - dynamical features in mekong river mouth areaFrom study results it can be stated that: 1. Distributions of wind and wave characteristics are corresponding to seasonal variation. Predominant wind and wave directions are NE during NE Monsoon period and W, SW during SW Monsoon period. During transition period the wind and wave are varying. The wind velocity and wave height during NE Monsoon ...
14 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 585 | Lượt tải: 0
Về những cấu trúc thủy động lực đặc thù gây xói lở - Bồi tụ tại dải ven bờ nam Trung BộSpecific hydro-dynamical structures include the clockwise ellipsoid eddies covering the whole open bays of central coastal zone and the narrow zones of diffraction-wave ray orthogonals constructed after changing over large promontaries and harbour breakwaters. First of them is main reason created important mouth accretion points in the bays of ...
16 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 755 | Lượt tải: 0
Ứng dụng viễn thám và GIS trong theo dõi và tính toán biến động đường bờ khu vực Phan ThiếtBy integrating remote sensing with GIS, the monitoring and calculation of shoreline changes are carried out quickly and effectively. With multi-temporal Landsat imageries, preliminary view is outlined about shoreline change in Phan Thiet from 1973 to 2004. In addition, by the extension of ArcView, DSAS, shoreline change rates are calculated in ...
13 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 747 | Lượt tải: 0
Cơ sở khoa học cho lượng giá kinh tế các tổn thất tài nguyên môi trường do sự cố ô nhiễm dầu tác ðộng lên các hệ sinh thái biển Việt NamThis article is part of the contents of National research project "Study of basically sciences and low to compensate for oil pollution on Vietnam Sea" to provide the scientific basis for evaluating economic losses of environmental resources due to oil pollution incidents affecting the marine ecosystems in line with Vietnam's conditions. In the v...
12 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 741 | Lượt tải: 0
Tình hình ô nhiễm dầu trong nước dải ven bờ Việt NamThe survey data of oil concentration in coastal water of Viet Nam in last ten years shown that the water is polluted by oil and grease and the pollution is more increased day by day. The oil pollution is caused by the exploitation of oil in continental shelf, the processes of refined oil factories, activities of seaport system in the coastal wat...
17 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 630 | Lượt tải: 0
Khả năng ảnh hưởng của ô nhiễm dầu đến các rạn san hô ở một số khu vực ven biển Việt NamIn the study areas (Ha Long, Cu Lao Cham, Phu Quoc) oil concentration were high, exceeding the Vietnam’s Standard for coastal water (QCVN 10:2008) from 1.3 to 19 times. Thus, these areas have been a sign of oil pollution and directly impacted on aquatic organisms. The decline in the number of species, coverage and distribution of coral has occu...
13 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 902 | Lượt tải: 0
Kết quả đánh giá tác động của sự cố tràn dầu đến tài nguyên và môi trường biển tỉnh Bà Rịa Vũng Tàu năm 2008The Ba Ria - Vung Tau province is one of the most locations strong impacted by oil spil. The oil spill Duc Tri Ship on 3/2008 caused very strong bad impact to marine environment and resources at this locality. The technical process evaluating impacts of oil spill to marine environment and resources was used to test level of loss caused by Duc T...
12 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 848 | Lượt tải: 0
