• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume I
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• pp.166-169
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• 2006

Our country's coast is vulnerable area to natural disaster which the repetitive damages occur every year including a loss of lives, the damage of facilities and erosion mostly except for the east coast because of a typhoon, tidal waves, sea water overflowing by topographic structure of low-lying gentle slope and shallow sea. However, as for prevention of natural disaster occurring every year, the situation is that it's centered on the restorationcentered measures and the general disaster prevention research to minimize damages at the time of disaster occurrence is insufficient. This study intendedlop t to devehe techniques possible for real time sampling of damage prediction areas on Web in order to support decision making for damage prevention and establishment of disaster prevention policy. For this, the thematic map was produced related to disaster based on high-resolution satellite picture, and the environmental DB similar to real world was constructed through topographic construction of three-dimension integrating the parts of land and the sea. In addition, the system was developed possible for the expression of damageable regions by real time grasp of dangerous regions at the time of disaster occurrence through over flowing simulation of three-dimension, and it's intended to prepare a basis to minimize damages to disaster situations through it.

• Journal of Forest and Environmental Science
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• 제30권4호
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• pp.383-392
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• 2014

In this study, we investigated the Fukiage sand dunes of southern Kyushu, Japan. We surveyed the status of recovery of coastal Japanese black pine forests damaged by pine wilt disease and their disaster prevention capability. We placed two transects: Transect 1, in an area that was severely damaged (80-90% damage rate) by pine wilt disease, and Transect 2, in an area that was mostly undamaged (<10% damage rate). Then, we installed survey lines, carried out vegetation surveys, and measured the depth and pH of humus soil. The survey lines were placed perpendicular to the coastline from the top of the fore-dune to the inland area, and divided into five 50 m sections. Before the point 100 m inland from the top of the fore-dune, the number of invasive hardwoods and of Japanese black pines were small because of the poor growth environment in both transects. Past the 100 m point, the species and number of Japanese black pines and broad-leaved trees increased further inland because the growth environment improved. In addition, the recovery metrics of tree height, diameter at breast height, age, and number in Transect 1 were much lower than those in Transect 2, and the basal area of broad-leaved trees and the depth of humus soil in Transect 1 were lower than in Transect 2, and the soil pH of humus soil in Transect 1 was higher than that of Transect 2. The shape ratio of the Japanese black pine forests indicated that they were insufficient for disaster prevention. Therefore, in order to fully promote the disaster prevention capability of coastal Japanese black pine forests, we should not only focus on prevention of pine wilt disease but also undertake continuous control efforts taking into consideration the sound growth environment such as appropriate density and soil management and removal of invasive broad-leaved trees.

• 한국연안방재학회지
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• 제5권4호
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• pp.203-210
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• 2018

It is generally known that submerged breakwaters can reduce the incoming wave energy without disturbing the beach scenery. However, a submerged breakwater is also able to cause a setup of the sea level in the protected area which is also called as water piling-up. Since the piling-up can result in longshore currents, sediment transports, and unexpected beach erosion, understanding about the piling-up process is required prior to designing the nearshore structures. In this study, the water piling-up behind a submerged breakwater is assessed in the time of storm events. For the study area, Anmok beach in Gyeonso-dong, Gangwon-do is selected. 1-year, 5-year, 10-year, and 50-year return-values were derived from Peaks-Over-Threshold(POT) method and those are applied as offshore boundary conditions for the numerical simulation. The numerical results of the piling-up were assessed with regard to the wave steepness and the height of the submerged breakwater. With increase of both significant wave height and the height of the submerged breakwater, the piling-up parameter is also increased which can lead to erosion of dry beach behind the structure.

• 한국해양환경ㆍ에너지학회지
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• 제20권1호
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• pp.55-61
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• 2017

본 연구는 연안주민의 재해대응능력을 평가하기 위하여 설문조사를 실시하고, 그 특성을 분석하였다. 표본추출방법은 비확률표본추출법을 사용하였으며, 표본크기는 4,520명, 표본오차는 95% 신뢰수준에서 ${\pm}1.5%p$이다. 조사결과 10개 지문 중 비상연락망 파악이 72%, 재난방송청취가 68%로 비교적 높게 나타났으며, 지역자율방재단이 17%, 재난대비 훈련 참여가 18%로 낮게 나타났다. 또한 남성의 재해대응능력이 여성보다 높게 나타났으며, 응급처치요령과 재난대비 훈련 참여는 10대와 20대에서 높게 나타났다. 직업군별로는 공무원이 재해대응능력이 높게 나타났다. 지역적 분석결과 동해안에서 높게 나타났으며, 남해안지역에서 낮게 나타났다. 연안주민 재해대응능력을 배양하기 위한 국가적 차원의 재난대비교육 및 홍보 개선이 필요하다.

• 한국해안해양공학회:학술대회논문집
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• 한국해안해양공학회 2008년도 발표논문집
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• pp.9-12
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• 2008

• 한국해안해양공학회:학술대회논문집
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• 한국해안해양공학회 2008년도 발표 논문집 제17권
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• pp.9-12
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• 2008

• Journal of Forest and Environmental Science
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• 제34권2호
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• pp.196-198
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• 2018

This study aimed to evaluate the effectiveness of jellyfish chips in promoting the survival and growth of Pinus thunbergii seedlings in a coastal area based on a five-year field investigation from 2012 to 2016. Seedling survival rate was significantly higher in the treatment (96%) than in the control (75%) group in 2012. Furthermore, the height of five-year-old seedlings after plantation in 2012 was significantly greater in the treatment (3.41 m) than in the control (2.32 m) group (t=10.151; p-value<0.01). These results revealed that jellyfish chips can improve soil condition by enhancing moisture retention during the early growth stages and supplying nutrients to the seedlings over time. Our findings indicated that jellyfish chips could be used effectively as an organic fertilizer for growing coastal disaster prevention forests.

• 한국해안해양공학회:학술대회논문집
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• 한국해안해양공학회 1995년도 정기학술강연회 발표논문 초록집
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• pp.5-8
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• 1995

Every few years the low-tying coastal plains of Bangladesh are seriously flooded by storm surges, in which fierce cyclones develop in the Bay of Bengal and then move towards the coast, pushing large masses of sea water onto the land. The coastal areas are densely populated and the combination of high winds and deep floods invariably kills thousands of people. (omitted)

• 디지털융복합연구
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• 제15권3호
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• pp.211-219
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• 2017

연안재해 저감을 위한 정부 사업 중 연안침식 및 퇴적을 저감시키기 위한 연안정비 사업 1단계(2000년~2009년)와 2단계(2010년~2019년)가 현재까지 진행중이다. 이와 같은 연안정비 사업을 수행함에 있어 연안 보호를 위한 인공 콘크리트 피복재의 설치가 필요하다. 현재 국내에서는 일본에서 개발된 제품을 현장에 적용하고 있거나, 호안보호공 설치를 시행하는 건설사에서 자체 개발한 블록을 설치하고 있는 추세이다. 그렇지만 이에 대한 수리특성 검증 및 안정성확보 여부, 설계기법과 같은 기술적인 검토는 부족한 상황이다. 본 연구에서는 이런 점들을 보완하여 사람들의 접근성이 좋으면서 연안재해 저감 및 보호 능력이 우수한 친수형 호안 블럭을 개발하고자 한다. 본 연구를 통하여 호안블록의 수리특성 및 안정계수를 도출할 수 있었다.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2003년도 춘계공동학술대회논문집
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• pp.157-164
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• 2003

복잡한 수심을 가진 연안해역에서 조석, 바람과 파에 의해 발생된 흐름의 영향까지를 고려한 파랑모델의 도입은 대부분의 해안공학 설계나 방재 문제에 매우 중요한 요소이다. 근해역에서 수심변화에 의한 굴절 및 천수효과, 흐름에 의해 유발되는 굴절효과, 파형경사에 따른 쇄파, 회절, 바람에 의한 파의 성장, 파랑 상호간의 간섭 및 에너지 재분포 등을 다를 수 있다는 점에서 정상상태 스펙트럼 모델의 현장 적용은 지금까지 여러 모델이 다루지 못한 부분을 해소하게 될 것이다. 본 연구에서는 부만 신항만 건설이 이루어지고 있는 가덕인접의 및은 수역에 대해 파랑의 변환과정을 보다 합리적으로 해석하기 위해 스펙트럼 모델을 적용하고 기존의 모델 결과와 비교 분석하는 것을 골자로 하고 있다. 이러한 시도가 가까운 장래에 항만설계 및 방재시스템 분야에서 보다 안전하고 널리 스펙트럼 모델을 적용하게 하는 계기가 되도록 의도하였다.