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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Society for Marine Environment & Energy
Journal Basic Information
Journal DOI :
The Korean Society for Marine Environmental Engineering
Editor in Chief :
Volume & Issues
Volume 8, Issue 4 - Nov 2005
Volume 8, Issue 3 - Aug 2005
Volume 8, Issue 2 - May 2005
Volume 8, Issue 1 - Feb 2005
Selecting the target year
A Comparative Study on the
Jung, R.T. ; Kang, S.G. ; Kang, C.G. ; Park, Y.C. ; Yoon, C.H. ;
Journal of the Korean Society for Marine Environment & Energy, volume 8, issue 3, 2005, Pages 111~115
The concentration of atmosphere carbon dioxide (
) which is one of the major greenhouse gas, continues to rise by the increase in fossil fuel consumption, forest destruction and decrease of biological diversity, etc. In order to weaken the global warming, a reduction of
discharge to the atmosphere is required. The
ocean sequestration technology utilizes the intrinsic oceanic capacity of
absorption, diluting and/or dispersing the liquefied
in the deep ocean (>2,000 m). This geo-engineering approach is regarded as one of the occasions to mitigate the
concentration in the atmosphere. Some developed centuries such as Japan, USA, Norway, etc. have intensively carried out the projects on the research and development of
ocean sequestration since 1990s. There have been several approaches to develop the relative technological system to mitigate the increasing
, however, there was no systematic and practical R&D programme in the
ocean sequestration. This paper has described the state of the art on the three optional methods of
sequestration, and compared with them in the aspect of the applicable possibility.
Effects of Non-hydrostatic Pressure on Free Surface Environmental Flows
Yoon, B.S. ; Park, C.W. ;
Journal of the Korean Society for Marine Environment & Energy, volume 8, issue 3, 2005, Pages 116~121
In the present paper, a new calculation algorithm far solving large scale environmental or geophysical flows with free surface is proposed where the non-hydrostatic pressure component is taken into consideration. Predictor-corrector fractional step approach with explicit, forward time marching scheme in the sigma coordinate system is employed. In order to validate the present calculation algorithm and to estimate the effects of non-hydrostatic pressure on resultant flow and free surface movements, example calculations are carried out for typical steady and unsteady flow problems. Present method can be applied to the meso-scale free surface flows with complex bottom topography where MAC-like 3-d hydrodynamic calculations are quite ineffective and uneconomic.
The Change of Beach Sediment Composition and Geography by Typhoon (Naa Beach, East Sea)
Lee, Yeon-Gyu ; Shin, Hyeon-Ok ; Lee, Jeong-Sup ; Park, Il-Heum ; Choi, Jeong-Min ;
Journal of the Korean Society for Marine Environment & Energy, volume 8, issue 3, 2005, Pages 122~133
The change of surface sediment composition, shoreline and transection of geography were studied to investigate the Typhoon(Maemi) effect in Naa Beach located in the south area of East sea. In the backshore the volume of gravel is do creased, and increased in the volume of sand. The erosion in the sediment occurred to 4 m in the thickness and effected to 10 m in depth. And the coastline retreated to 12 m after typhoon. During typhoon conditions, higher amplitude waves deepen the wave base, causing much of the lower beach face and the offshore. The upper beach face is extensively eroded during typhoon and sand sediment is redeposited.
Penetration of Weathered Oil and Dispersed Oil and its Ecological Effects on Tidal Flat - as Infiltration of Dissolved Matter -
Cheong, Cheong-Jo ;
Journal of the Korean Society for Marine Environment & Energy, volume 8, issue 3, 2005, Pages 134~139
The purpose of this study is to quantify the penetration behavior of spilled weathered oil and dispersed oil and to evaluate the influence of the penetrated oils on seawater infiltration in tidal flat environment. The penetration depths of the spilled oils into the tidal flat sediments were gradually deeper according to increase the stranded oil volume. The penetration depth of stranded oil were abruptly dropped at first falling tide, but were not significantly fluctuated after that. Moreover, hydrocarbon concentration was most high within the upper 2 cm. Seawater infiltration was decreased in proportion to the stranded oil volume. Dispersed oil was easily permitted the seawater infiltration than weathered oil and crude oil. Therefore, quick cleaning actions fur penetrated oil will be required far recovery of seawater infiltration, because the seawater contains oxygen and nutrients required for the survival of benthic organisms in tidal flat.
Development Mechanism of Circulation Current and Oceanographic Characteristics in Yeongil Bay
Yoon, Han-Sam ; Lee, In-Cheol ;
Journal of the Korean Society for Marine Environment & Energy, volume 8, issue 3, 2005, Pages 140~147
We investigated the interactions between coastal waters of the Yeongil Bay, Korea, and oceanic waters of the Eastern Sea, as wet 1 as the development mechanism of vertical circulation currents in the bay. The oceanic waters of the bay have an average water temperature of
and salinity of
PSU. Results of spectral analysis have shown that the period of revolution between oceanic and coastal waters is about 0.84-0.91 years in the surface waters and 1.84 years in the bottom layer. The wind direction in the bay shifts between SW and NE, with the main wind direction being SW during the winter period, and water mass movement is influenced by such seasonal variations in wind direction. Vertical circulation currents in the bay are structured by two phenomena: the surface riverine outflow layer from the Hyeong-san River into the open sea and the bottom oceanic inflow layer with high-temperature and salinity into the bay. These phenomena start the spring when the water mass is stable and become stronger in the summer when the surface cold water develops over a 10-day period. Consequently, tidal currents have little influence in the bay; rather, these vertical and horizontal circulation currents play an important role in the transport of the pollutant load from the inner bay to the open sea.
Distribution and Pollution of Heavy Metals in the Environmental Samples of the Lake Shihwa
Kim, Kyung-Tae ; Kim, Eun-Soo ; Cho, Sung-Rok ; Chung, Kyung-Ho ; Park, Jun-Kun ;
Journal of the Korean Society for Marine Environment & Energy, volume 8, issue 3, 2005, Pages 148~157
In order to understand distribution characteristics and pollution of heavy metals in the artificial Lake Shihwa in the vicinity of Kyunggi Bay in relation with huge environmental changes, various environmental samples including seawaters, surface sediments and settling particulate matters were collected from Lake Shihwa in 2004. Due to extreme pollutant discharge from various anthropogenic sources such as the Banweol and Shihwa Industrial Complexes and cities, the highest metal concentrations in the samples such as waters, sediments and settling particulate matter were found in inner part of the lake. High metal contents (Cu, Zn and Hg) in sediments were observed at Sts. 2-4 and 9. The contents of Cr, Co, Ni, Cu, Zn and Pb in SPMs were high at St. 5 and low in the outer part of the lake. Spatial distribution of heavy metals were mainly controlled various biogeochemical factors and physical mixing as well as input of industrial and municipal wastewaters. Although tile environmental qualities of heavy metals in the lake have been improved partially due to inflow of outer seawater, it is not clear to reach a good environmental quality. Therefore, further environmental programs should be conducted continuously for environmental improvement.
The Effect on the Marine Water and Sediment Quality by the Use of Nano-S 1. Result of Water Tank Experiment
Cho, Hyeon-Seo ; Cho, Chon-Rae ; Jang, Young-Nam ;
Journal of the Korean Society for Marine Environment & Energy, volume 8, issue 3, 2005, Pages 158~163
The purpose of this study was to observe the effect on the marine environment by the use of Nano-S. Nano-S was made to apply to improve the red tide bloom. The experiment was performed at round tank with volume of 180 L. Each tank was filled with an aggravated sediment about
hight and sea water. The water flow-rate of tank was established on the rate of 6.25 L/hr. Sea water level was fitted to 40 cm, therefore the filled water was about 150 L. The sediment was stabilized during one week. Then the Nano-S and the red mud were added into each tank 0 kg(control), 1 kg(tank A), 2 kg(tank B), 5 kg(tank C) and 10 kg(tank D) each other. The quantity was fulfilled with 0 kg(control), 2.75 kg(tank A), 5.51 kg(tank B), 13.77 kg(tank C) and 27.55 kg(tank D) per square meter of sediment. The experiment was performed during 30 days. Water and sediment samples were collected from each tanks on the before 1hour and after 1, 3, 6, 12 hour and 1st, 3th, 5th, 7th, 10th, 15th, 30th day of the experiment period. The change of water and sediment quality was analyzed before and after applying the Nano-S and the red mud.