• 한국환경과학회지
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• 제23권6호
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• pp.1085-1093
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• 2014

We investigate the amount of potential electricity energy generated by wind power in Busan metropolitan area, using the mesoscale meteorological model WRF (Weather Research & Forecasting), combined with small wind power generators. The WRF modeling has successfully simulated meteorological characteristics over the urban areas, and showed statistical significant to predict the amount of wind energy generation. The highest amount of wind power energy has been predicted at the coastal area, followed by at riverbank and upland, depending on predicted spatial distributions of wind speed. The electricity energy prediction method in this study is expected to be used for plans of wind farm constructions or the power supplies.

• 한국지리정보학회지
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• 제8권4호
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• pp.52-60
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• 2005

본 연구에서는 부산시의 대표적인 주거지역이면서 워터프런트지역을 포함하고 발전해 온 수영구와 해운대구를 중심으로 지가와 주거환경요소의 상관성 및 주거환경요소가 지가에 미치는 영향을 고찰해 보고자 했다. 이를 위해 지가를 종속변수로 하고 주거환경요소를 설명변수로 하여 상관분석 및 회귀분석을 실시하였다. 먼저 지가와 각 변수간의 상관성을 보면 모든 대상지역에서 토지이용과 간선도로와의 거리, 지하철역까지의 거리가 공통적으로 지가와 상관성이 높은 변수로 밝혀졌고, 회귀분석을 통해 각 변수별 설명력을 알아본 후 지가에 대한 변수의 설명력이 높은 순으로 누적 설명력을 살펴본 결과 7개의 변수로 수영구는 67%, 해운대구는 50.5%의 설명력이 있는 것으로 드러났다. 또한 본 연구에서 특히 관심을 가지고 설정해 본 해안까지의 거리변수는 지가와 상관분석 결과 모든 대상지역에서 그다지 상관성이 높지 않았으며, 회귀분석 결과에서도 각 지역별로 6.4%~7.6%의 설명력을 갖는 것으로 밝혀져 지가를 설명하는 변수로서 중요도도 높지 않은 것으로 나타났다.

• 한국수산과학회지
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• 제20권6호
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• pp.591-600
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• 1987

1986년 3월부터 10월 사이에 부산지역을 비롯하여 포항, 충무, 여수, 군산 및 시화만에서 해수 138개 해산물척추동물 102개 시료를 채식하여 시료별, 지역별로 V. vulnificus 분포실태를 조사한 결과는 다음과 같다. 1. 해수 138개 시료 중 31개에서 V. vulnificus가 검출되어 약 $22.5\%$의 검출율을 나타내었으며 외항수보다 내항수에서 검출율이 높았다. 2. 해산물척추동물 102개 시료중 16개중 V. vulnificus가 검출되어 $15.7\%$의 검출율을 나타내었으며 게와 피조개에서 그 검출율이 높았다. 3. 시기별로 수온이 높은 8월에서 10월 사이에 많이 검출되었으며 그 중 9기이 $40\%$의 가장 높은 검출율을 보였다. 4. 지역별로는 염분농도가 낮은 서해안의 군산이 검출율이 가장 높았으며 남해안에서는 부산지역의 광안리와 해운대에서 검출율이 높았다.

• 한국수산과학회지
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• 제32권3호
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• pp.374-384
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• 1999

부산 용호동 일대의 저서 해조상 및 군집구조가 1996년 7월부터 1997년 4월까지 계절별로 각 transect line을 따라서 방형구법에 의하여 조간대와 조하대 지역에서 조사되었다. 이 지역에서 남조식물 3종, 녹조식물 13종, 갈조식물 26종, 홍조 식물 57종으로 총 99종이 동정 분류되었다. 이중에서 35 분류군은 연중 출현하였으며, Ulva pertusa와 Corallina pilulifera는 4계절 우점 하여 나타났다. Enteromorpha spp.와 Ulva spp.는 주로 상부와 중부에 분포하는 반면에, Symphyocladia latiuscula, Chondria crassicaulis, Corailina pilulifera 및 Sargassum spp.는 주로 하부지역에 분포하였다. 단위면적당 평균생물량은 $1,241 g/m^2\~1,648 g/m^2$의 범위로서, 봄에는 낮았고 여름에 높았다. 종다양도지수는 봄에 최대값을, 가을에 최소값을 기록하였다. UPGAM에 의한 군집분석결과, 조사된 5개의 지점은 외해에 노출되어 있는 지역(transects 1, 2, 3)과 부산항 쪽으로 면하여 있어서 비교적 덜 노출되어 있는 지역 (transeco 4, 5)의 2개의 군으로 분리되었다. 외해에 노출되어 있는 지역은 주로 갈조식물인 Sargassum과 Hizikia가, 덜 노출되어 있는 지역에서는 Ulva pertusa와 Lomentaria가 주로 발견되었으며, 양 지역 모두에서는 석회조류인 Corallina pilulifera가 일년 내내 우점하여 출현하였다. 결론적으로 본 조사지역에서는 과거에 비하여 출현종이 현저히 감소하였고, 이러한 결과는 근래에 본 조사지역 인근의 연안 해양환경에 부하될 수 있는 물리, 화학적인 잠재적 오염원을 고려할 때, 차후 본 지역의 해조 식생의 변화에도 시사하는 바 크다고 할 수 있다.

• 한국환경과학회지
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• 제30권11호
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• pp.925-936
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• 2021

The study was aimed to investigate the correlation between tidal effects and fog occurrence in Incheon and Mokpo, which are located in the middle and southern coasts of the West Sea of Korea, respectively. The investigation used meteorological data obtained from the automated synoptic observing systems and automatic weather stations and ocean data from tide stations from 2010 to 2019. Fog occurrence frequency was highest at high tide (Incheon, 41%; Mokpo, 45%). During fog event days at high tide, the dew-point depression was low (Incheon, 0.5℃; Mokpo, 0.4℃) and the relative humidity was high (Incheon, 97%; Mokpo, 98%). The wind speed was 2.4 m/s in Incheon and 2.0 m/s in Mokpo, and the main wind directions were west-southwesterly from Incheon and southwesterly from Mokpo. In the fog case study, tidal flats were covered with water before and after the fog started. During the fog period, both stations experienced negative air-sea temperature differences, low dew-point depression, and high relative humidity were maintained, with weak winds forming from the tidal flats to the shore.

• Ocean and Polar Research
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• 제28권4호
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• pp.369-383
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• 2006

The Saemangeum project is one of the biggest reclamation efforts in Korea and may cause coastal ecosystem change due to altered environments and habitat loss. Since February 2002, benthic environment and community structure in the Saemangeum studied area were studied to assess the influence of the project on macrofaunal community. The result of seasonal study from February, 2002 to August 2005 is reported here. Overall, changes of species numbers and dominant species of benthic animals in the periods before (1988) and after $(2002{\sim}2005)$ the Saemangeum dike construction were not evident both inside and outside the dike. However, local environmental and community change were noted The partial completion of Saemangeum dike $(4^{th}\;dike)$ in June 2003 altered water circulation and sediment deposition patterns both inside and outside the dike. Fine sediment was accumulated inside and outside the $4^{th}$ dike while coarse sediment dominated near the main channel (Sinsi gate). Benthic community resl)ended to the altered sediment type in these areas. Species number and diversity in both site was low compared to other sites. The dominant species in these areas were composed of the benthos that had not commonly occurred in the Saemangeum subtidal area.

• 한국해양학회지
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• 제13권2호
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• pp.11-16
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• 1978

최근에 와서 유류오염과 더불어 중금속에 의한 해양오염, 특히 연안오염은 공공 관심의 대상이 되고 있다. 어떤 해역의 오염정도는 그 해역의 해수 및 그 해역에 서식 하는 유기체(Organisms)와 더불어 그 해역 퇴적물의 오염물질함량으로부터 파악할 수 있다. 진해만과 부산해역은 공업단지와 대도시가 인접해 있고 또 선박의 출입이 잦기 때문에 중금속에 의해 오염될 가능성이 많다. 그러나 이 해역에 대한 중금속의 오염조사현황을 보면 수질에 대한 조사는 수차(Kwak et al., 1974, 국립수산진흥원, 1975, 1977)에 걸쳐 행하여 졌으나 퇴적물에 대해서는 진해만에 대한 2회의 조사(Lee et al., 1974, Hyun, 1974)가 있었을 뿐이다. 본 조사에서는 진해만과 부산해역 퇴적물의 중금속 오염실태를 알아보기 위해 이를 해역의 퇴적물을 채취하고 퇴적물중 구리, 납, 아연, 니켈, 코발트, 철, 망간등 7가지 중금속의 함량을 측정하였다.

• 한국수산과학회지
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• 제43권4호
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• pp.351-361
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• 2010

Among common estuarine submerged plants, seagrasses are the most extensively studied due to their ecological importance in estuarine ecosystems. Seagrass meadows are important biological habitats for a wide variety of marine animals and plants. They are a source of organic carbon for commercially important animals. Furthermore, seagrasses act as nutrient filters in estuarine and coastal marine ecosystems. As such, mapping the distribution of seagrass beds is important for management and conservation strategies. In order to survey the seagrass distribution within the Seomjin Estuary, We directly observed seagrass beds in Kwangyang and Hadong using SCUBA. The distribution area, species composition, morphology, density, biomass and productivity of seagrass meadows were examined. Seagrass meadows were distributed in the intertidal and subtidal zones of the Galsa tidal flats, and in the subtidal zone of the neighboring POSCO area. Patches of Zostera japonica was found at patches at the Galsa tidal flats intermediate point. The total estimated seagrass distribution area of the Seomjin Estuary was $1.84\;km^2$. Of the total, $1.83\;km^2$ was Zostera marina (eelgrass) and $0.01\;km^2$ was Zostera japonica (dwarf eelgrass). Zostera japonica was found in intertidal zones. Zostera marina was found from the intertidal to subtidal zones at a 2 m mean sea level (MSL) depth. The leaf productivity of Zostera marina was $4.47g\;DW\;m^{-2}\;day^{-1}$. The annual production of eelgrass was $1,632\;g\;DW\;m^{-2}\;yr^{-1}$, which corresponds to $731g\;C\;m^{-2}\;yr^{-1}$. The total production of eelgrass was $3,002\;tons\;DW\;yr^{-1}$, which corresponds to $1,343\;tons\;C\;yr^{-1}$.

• 한국환경과학회지
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• 제21권9호
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• pp.1097-1113
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• 2012

Ozone is the secondary photochemical pollutant formed from ozone precursor such as nitrogen dioxide and non-methane volatile organic compounds(VOCs). The ambient concentration of ozone depends on several factors: sunshine intensity, atmospheric convection, the height of the thermal inversion layer, concentrations of nitrogen oxides and VOCs. Busan is located in the southeast coastal area of Korea so the ozone concentration of Busan is mainly affected from the meteorological variables related to the sea such as sea breeze. In this study the ozone concentrations of Busan in 2008~2010 were used to analyse the cause of the regional ozone difference in eastern area of Busan. The average ozone concentration of Youngsuri was highest in Busan however the average ozone concentration of Gijang was equal to the average ozone concentration of Busan in 2008~2010. The two sites are located in eastern area of Busan but the distance of two sites is only 9km. To find the reason for the difference of ozone concentration between Youngsuri and Gijang, the meteorological variables in two sites were analyzed. For the analysis of meteorological variables the atmospheric numerical model WRF(Weather Research and Forecasting) was used at the day of the maximum and minimum difference in the ozone concentration at the two sites. As a result of analysis, when the boundary layer height was lower and the sea breeze was weaker in Youngsuri, the ozone concentration of Youngsuri was high. Furthermore when the sea breeze blew from the south in the eastern area of Busan, the sea breeze at Youngsuri turned into the southeast and the intensity of sea breeze was weaker because of the mountain in the southern region of Youngsuri. In that case, the difference of ozone concentration between Youngsuri and Gijang was considerable.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2001년도 추계학술발표회
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• pp.92-96
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• 2001

Although the problem of seawater intrusion at the coastal aquifer was recognized before over one hundred years at the coastal aquifer, much groundwater keep on being salinitized by several reasons such as groundwater exhaustion, coastalline change, and human activities. The horizontal and vertical electrical soundings and geostatistical methods were used to define the local characteristics of saltwater intrusion and to estimate the saltwater interface in the southeastern area of the Pusan City. The 24 points of the Schlumberger vertical electrical soundings(VES) to loom depth and the 2 lines of dipole-dipole horizontal soundings are peformed. The resistivity data have lognormal distributions. The horizontal extents of saline water intrusion were estimated from the inversion of horizontal prospecting data. Lognormal ordinary kriging is used in A-A' resistivity profiles on May and July because the data have stationary models in semivariograms. Lognormal IRF-k kriging is used for the isopleth maps using vertical resistivity data. The 10 ohm-m resistivity line on the isopleth maps of 21m, 30m, 50m, and 70m depth using resisitivity data measured in July is sifted to the east, cpomparing that of the isopleth maps measured in May. The kriged vertical and horizontal resistivity isopleth maps suggested that the geostatistical methods can be used to define the variation of earth resistivity distribution at the saltwater interface.