Korea Society of Coastal Disaster Prevention最新文献_第2页

Numerical Study on Tide and Tidal Current along Bali Strait, Indonesia using Finite Volume Coastal Ocean Model (FVCOM) 基于有限体积海岸海洋模型(FVCOM)的印尼巴厘岛海峡潮汐和潮流数值研究

Korea Society of Coastal Disaster Prevention Pub Date : 2023-01-30 DOI: 10.20481/kscdp.2023.10.1.35

M. N. Adibhusana, I. Hendrawan, Y. Ryu

引用次数: 0

Construction of Tidal Information Database on the Southern Coast of Korea and Prediction of the Tide 韩国南部海岸潮汐信息数据库的建设与潮汐预报

Korea Society of Coastal Disaster Prevention Pub Date : 2022-10-30 DOI: 10.20481/kscdp.2022.9.4.267

Chang S. Kim, Insik Chun, Byungcheol Oh, Ho-hyun Lee, Jieun Choi, Eunhye Mun

引用次数: 0

Wave and Mean Water Level Control by Caisson-Type Submerged Breakwater 沉箱式淹没防波堤对波浪和平均水位的控制

Korea Society of Coastal Disaster Prevention Pub Date : 2022-10-30 DOI: 10.20481/kscdp.2022.9.4.221

Y. Jeong, Jeong-Huem Lee, Jun-Seok Kim, D. Hur

引用次数: 0

A Study on the Shoreline Movement of Won-pyeong Beach using ShorelineS Model 基于海岸线模型的元平海滩海岸线运动研究

Korea Society of Coastal Disaster Prevention Pub Date : 2022-10-30 DOI: 10.20481/kscdp.2022.9.4.247

H. Yoo, Ki-Hyun Kim, Jong-Beom Kim, T. Kang

{"title":"A Study on the Shoreline Movement of Won-pyeong Beach using ShorelineS Model","authors":"H. Yoo, Ki-Hyun Kim, Jong-Beom Kim, T. Kang","doi":"10.20481/kscdp.2022.9.4.247","DOIUrl":"https://doi.org/10.20481/kscdp.2022.9.4.247","url":null,"abstract":"Increased coastal human intervention and climate change are leading to rapid changes in coastal areas and often causing catastrophic damage to resident populations. The ShorelineS model was introduced, which can explain drastic beach changes were simulated. According to the modeling results, the installation of Gungchon Port caused rapid sedimentation in the south of the port. It was reviewed that the erosion and sedimentation tendency of the beach is changed after the installation breakwater in front of the beach, the erosion in the central part of the beach was somewhat suppressed, and the beach was deposited in the shape of tombolo on the back of the beach. The installation of artificial structures dramatically changes the equilibrium state of the beach and increases the erosion of the direct wave near the structure. The ShorelineS model was the advantage of being able to properly reproduce changes in the coastline by inputting relatively simplified environment and beach information and to quickly predict after installation of artificial structures. The reallity, coastline changes due to various causes, so follow-up studies are needed to predict and effectively respond to this through an advanced model that reflects various conditions.","PeriodicalId":326564,"journal":{"name":"Korea Society of Coastal Disaster Prevention","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130333843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Analytical Study on Trustability of Prescribed Slope Inclinations in Design Criteria 设计准则中规定坡度可信度的分析研究

Korea Society of Coastal Disaster Prevention Pub Date : 2022-10-30 DOI: 10.20481/kscdp.2022.9.4.231

Seung-Hyun Lee, Byoung-il Kim, Man-Soo Lee

{"title":"An Analytical Study on Trustability of Prescribed Slope Inclinations in Design Criteria","authors":"Seung-Hyun Lee, Byoung-il Kim, Man-Soo Lee","doi":"10.20481/kscdp.2022.9.4.231","DOIUrl":"https://doi.org/10.20481/kscdp.2022.9.4.231","url":null,"abstract":"In order to investigate trustability of prescribed slope inclinations in design criteria, slope stability analyses were performed on the assumed two embankment sections. Factors of safety against dry condition for the section of 10m high and slope inclination of 1:2 and for the other section of 5m high and slope inclination of 1:1.5 were 1.93 and 2.24 respectively and those values were greater than the design criterion value of 1.50. Factors of safety which were computed through seepage analyses for steady state condition were 1.59 for the section of 10m high and 1.93 for the other section and those values were greater than design criterion value of 1.30. Non-steady state analyses under the same rainfall intensity for the steady state condition were also performed to compare with steady state analyses and it can be seen that factor of safety for the non-steady state condition was converged to the value for the steady state condition as time elapsed. Stability analyses of using piezometric line which were located on the top line of the sections were performed and computed values of factor of safety were 1.20 for the section of 10m high and 1.59 for the other section respectively and it could be seen that the factor of safety for the section of 10m is less than the criterion value of 1.30. According to the results of this study, it can be seen that the slope inclination of 1:1.5 for the slope heights less than 5m and the slope inclination of 1:2.0 for the slope heights between 5m to 10m were safe enough under dry condition and rainfall condition. Nevertheless it can be concluded that slope stability analysis should be performed for the slope over 10m high and with ground water table near the surface of the slope because the factor of safety for that situation was less than the design criterion value.","PeriodicalId":326564,"journal":{"name":"Korea Society of Coastal Disaster Prevention","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114394183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of SIND model for the Prediction of Flooding in Coastal Cities SIND模型在沿海城市洪水预报中的应用

Korea Society of Coastal Disaster Prevention Pub Date : 2022-10-30 DOI: 10.20481/kscdp.2022.9.4.257

Dong Hyun Kim, H. Yoo, Young Jun Bang, Seung Oh Lee

{"title":"Application of SIND model for the Prediction of Flooding in Coastal Cities","authors":"Dong Hyun Kim, H. Yoo, Young Jun Bang, Seung Oh Lee","doi":"10.20481/kscdp.2022.9.4.257","DOIUrl":"https://doi.org/10.20481/kscdp.2022.9.4.257","url":null,"abstract":"Flooding damage is increasing due to abnormal climates. In particular, in the case of coastal cities, it is necessary to simultaneously consider inundation caused by marine disasters such as storm surge and tsunami as well as inundation due to urbanization. In order to respond to disasters in coastal cities, flood prediction must be preceded. In Korea, the intensity of disasters has been classified by frequency, and flood hazard maps have been produced accordingly. The map is generally derived through numerical simulation, which is based on a scenario, so there is a lot of uncertainty, and it is difficult to predict a disaster for which a scenario has not been established. Because the target range of the coast is wide, the calculation speed of numerical simulation is slow, and a considerable amount of time is required for inundation prediction. It is practically difficult to predict a disaster such as torrential rain in a short period of time. Therefore, in this paper, by using the SIND model, a scientific interpolation model proposed by Kim et al. (2018), the ability to predict the inundation of coastal cities was reviewed and the method of using the model was presented. The SIND model is a short-term prediction model of urban inundation for a desired scenario within the range by using a pre-established inundation forecast map, and can be used for short-term inundation prediction such as torrential rain. To examine the applicability, the accuracy of the flood hazard map derived from the SIND model for coastal cities was analyzed. As a result, it was confirmed that the shape similarity suggested by Kim et al. (2019) was about 0.7 or higher, and it was judged to be appropriate in terms of shape similarity. If the shape similarity technique used for model validation is improved to suit the urban flooding characteristics, the use of the SIND model is expected to increase.","PeriodicalId":326564,"journal":{"name":"Korea Society of Coastal Disaster Prevention","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127896639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Configuration and Performance Test of GNSS-IMU Sensor Fusion Module for Structural Displacement Measurement 用于结构位移测量的GNSS-IMU传感器融合模块配置与性能测试

Korea Society of Coastal Disaster Prevention Pub Date : 2022-10-30 DOI: 10.20481/kscdp.2022.9.4.237

In-ki Min, Insik Chun, Jaeseol Shim, D. Ha

引用次数: 0

Development of Active Wave-induced Overtopping Control System [AWOC] using a Self-adaptive Floating Structure 基于自适应浮式结构的主动浪致过顶控制系统的研制

Korea Society of Coastal Disaster Prevention Pub Date : 2022-07-30 DOI: 10.20481/kscdp.2022.9.3.189

Y. Cho

{"title":"Development of Active Wave-induced Overtopping Control System [AWOC] using a Self-adaptive Floating Structure","authors":"Y. Cho","doi":"10.20481/kscdp.2022.9.3.189","DOIUrl":"https://doi.org/10.20481/kscdp.2022.9.3.189","url":null,"abstract":"In this study, an active overtopping control system [AWOC] that could effectively supress the flooding caused by storm surge was presented, and numerical simulations to verify the overtopping control effect of AWOC were also carried out using OlaFlow, an OpenFoam-based toolbox. In the AWOC, the floating structure that works as the overtopping controller is submerged in a mild sea, and when exposed to a storm, it rises when the sea level are getting increased due to a storm surge, and as a result, would effectively supress the wave-induced overtopping. Due to these characteristics, the AWOC has the advantage of controlling overtopping at the minimum opportunity cost to preserve the beautiful beach landscape. In the numerical simulation, the motion of a floating structure that rises or descends coupled with the sea level during a storm surge or harsh waves was described by solving the structure motion equation using the water pressure acting on it as an external force. In doing so, Dynamic Mesh was used for the sake of more accurate numerical simulation, in which the computational mesh is updated whenever floating structure moves. Numerical result shows that even though overtopping flow becomes more energetic compared to that in the rubble-mound breaker due to the emhanced reflection after the deployment of AWOC, AWOC could effectively control the enhanced overtopping. It is also shown that an obliquely descending flow from the first quadrant to the third quadrant is formed in the front of AWOC due to the offshore-directed flow commencing from the floating structure of AWOC.","PeriodicalId":326564,"journal":{"name":"Korea Society of Coastal Disaster Prevention","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127594655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of the Temporal and Spatial Changes of Sea Level in Korean Coastal Zone 韩国海岸带海平面的时空变化分析

Korea Society of Coastal Disaster Prevention Pub Date : 2022-07-30 DOI: 10.20481/kscdp.2022.9.3.179

Su-Hyun Yang, Tae-Young An, Kyu-Nam Hwang

{"title":"Analysis of the Temporal and Spatial Changes of Sea Level in Korean Coastal Zone","authors":"Su-Hyun Yang, Tae-Young An, Kyu-Nam Hwang","doi":"10.20481/kscdp.2022.9.3.179","DOIUrl":"https://doi.org/10.20481/kscdp.2022.9.3.179","url":null,"abstract":"In this study, the temporal and spatial changes of sea level in Korean coastal zone were analyzed. First, the error value of 1 hour tide data provided by the Korea Hydrographic and Oceanographic Agency was excluded through preprocessing, the analysis of sea level change was performed by considering long period components through low-pass filtering. Using low-pass filtering data, the monthly mean sea level was calculated and the temporal changes of sea level were verified by data fitting using linear fit and multidimensional smoothing spline. The results of linear fit show that the tide tends to rise at most stations. And the results of multidimensional smoothing spline fit show that the increase and decrease of sea level is repeated every year. Although the amounts of change vary every year, sea levels have been repeated seasonally, with sea levels rising in summer and falling in winter. Also, Hovmöller diagram was prepared for the change of sea level in each east, west, and south coast, and the temporal and spatial changes of sea level were analyzed. Compared to the past, recent sea level changes increased in all points. Especially, in the west coast, the sea level increased more in the south (Mokpo) area than in the north (Yeongjong Bridge), and the south (Mokpo) area of the west coast could be a vulnerable area due to the rise in sea level.","PeriodicalId":326564,"journal":{"name":"Korea Society of Coastal Disaster Prevention","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127515890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of Forecast System for the Upwelled Coastal Cold Waters in the Eastern Coast of Korea 韩国东部海岸上升流寒流预报系统的发展

Korea Society of Coastal Disaster Prevention Pub Date : 2022-07-30 DOI: 10.20481/kscdp.2022.9.3.207

Joon‐Soo Lee, Ji-Yeong Song, Myung-Hee Park, M. Kwon, I. Han, R. Jung

引用次数: 0