• Journal of Korea Water Resources Association
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• v.56 no.11
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• pp.751-764
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• 2023

Gangwon State is centered on the Taebaek Mountains with very different climate characteristics depending on the region, and localized heavy rainfall is a frequent occurrence. Heavy rain disasters have a short duration and high spatial and temporal variability, causing many casualties and property damage. In the last 10 years (2012~2021), the number of heavy rain disasters in Gangwon State was 28, with an average cost of 45.6 billion won. To reduce heavy rain disasters, it is necessary to establish a disaster management plan at the local level. In particular, the current criteria for heavy rain warnings are uniform and do not consider local characteristics. Therefore, this study aims to propose a heavy rainfall warning criteria that considers the threshold rainfall for the advisory areas located in Gangwon State. As a result of analyzing the representative value of threshold rainfall by advisory area, the Mean value was similar to the criteria for issuing a heavy rain warning, and it was selected as the criteria for a heavy rain warning in this study. The rainfall events of Typhoon Mitag in 2019, Typhoons Maysak and Haishen in 2020, and Typhoon Khanun in 2023 were applied as rainfall events to review the criteria for heavy rainfall warnings, as a result of Hit Rate accuracy verification, this study reflects the actual warning well with 72% in Gangneung Plain and 98% in Wonju. The criteria for heavy rain warnings in this study are the same as the crisis warning stages (Attention, Caution, Alert, and Danger), which are considered to be possible for preemptive rain disaster response. The results of this study are expected to complement the uniform decision-making system for responding to heavy rain disasters in the future and can be used as a basis for heavy rain warnings that consider disaster risk by region.

• Proceedings of the Korea Water Resources Association Conference
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• 2021.06a
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• pp.167-167
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• 2021

2018년 재해연보에 따르면 최근 10년간 자연재해는 태풍과 호우에 의한 평균피해액이(301,680백만원) 전체 재해평균피해액(344,124백만원)의 87.6%로 나타났다. 이처럼 물 관련 재해가 다른 재해에 비해 상대적으로 큰 비중을 차지하는 대표적 원인은 국지성 집중호우의 발달과 개발로 인한 불투수면적의 증가 및 지표면 유출량의 증가등이 있다. 이러한 요인들로 하천범람이 지속적으로 증가하고 있으며 이에 대응할 치수계획수립이 필요한 실정이다. 세종특별자치시의 하천기본계획(2020.01)에 따르면 세종특별자치시의 금남면 도남리의 도남천지구는 제방고 및 여유고 부족과 인명 및 재산피해 우려 지역으로 하천재해 위험지구로 선정되었다. 따라서 본 연구의 목적은 도남천지구에 강우-유출모형을 적용하여 빈도별 월류위치 파악과 하천범람지도를 작성하여 대피범위등 유역치수계획수립시 기초자료에 활용 되고자 한다. 강우분석을 위한 강우관측소 선정은 티센망 확인을 통하여 공주시(반포중) 강우관측소를 선정하였다. 강우분석은 자료기간이 짧은 강우관측소에서도 확률강우량을 산정할 수 있는 지역빈도해석을 하였으며 분석결과 적합한 확률분포형은 GEV인 것으로 나타났다. 빈도별 홍수량 산정을 위해 HEC-HMS모형을 이용하였으며 산정방법은 깅우-유출 관계 분석 방법에 의한 다양한 합성단위도 방법중 일관성과 객관성이 입증되어 온 Clark단위도 법을 사용하였다. 산정한 홍수량을 HEC-RAS모형에 적용하여 월류구간을 파악하였으며 월류위치 및 대피범위를 가시화 하기 위해 HEC-GeoRAS모형을 사용하여 빈도별 하천범람지도를 작성하였다. 본 연구는 도남천지구에 빈도별 하천범람지도를 작성 하였다. 이를 통하여 하천범람시 대피범위등 유역치수계획 수립 시 도움이 될 것으로 판단된다.

• The Journal of the Korea Contents Association
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• v.22 no.6
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• pp.638-651
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• 2022

Last year, a new perception of the right to peace on the Korean Peninsula was adopted: DMZ Yanggu Peace Declaration 2021. The Declaration reflects that there is a raising of necessity for a new perception and approach from the perspective of DMZ-related laws, sustainable ecological environment and security. Gangwon is making considerable efforts to make the border area in DMZ as an area of peace by continuously enhancing publicity on the establishment of the 'Peace Special Self-Governing Province'. This study suggests the necessity of a paradigm shift towards the significance of the interkorean border region that it should function as a passage between the South and the North rather than a dam. For, to be renewed as a sustainably developing region through newly constructed flow of communication, the wall of hostility must preliminarily fall dawn. Then a question arises about how Gangwon is, out of other border region, most eligible for the reconsideration of its significance as a border area. The answer relies on the newly established agenda and understandings towards the right to peace in the perspective of founding the policy for the Unification of the Korean Peninsula. Furthermore, the conservation of DMZ ecological environment through enlistment of UNESCO Biosphere Reserve should go hand in hand with the ultimate value of global agenda of the conservation and protection of the environment. The study insists that the peace zone is a prerequisite for the adaption of the era of future-oriented glocalization featured by the Fourth Industrial Revolution. Up to this date, the border area was an area of pain and agony. It is time for Gangwon to be reborn as an area of peace and coexistence. The aim of this study is to point a direction for Gangwon to become a sustainably developing region by illuminating the value of the Gangwon border area as a new area of peace.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.56 no.5
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• pp.644-650
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• 2023

We examined the effects of serotonin on the spawning response, sperm motility, and D-shaped larva production in Eastern Gooeyduck clam Panopea sp. based on the sperm densities at fertilization and washing after mixing the eggs and sperm. The highest spawning induction was found showed in females and males injected with 1 mL of 2 mM serotonin. The spawning responses in females and males were higher at concentrations greater than 1 mM and 0.75 mM, respectively. Regarding the activities of sperm in sea water after serotonin injection, the sperm showed activity at >90.0% until 120 mins. We also examined the effects of sperm concentration at the fertilization and washing times after mixing the eggs and sperm. We confirmed that washing within 1 minute at a concentration of 1,500 sperms/mL or less can prevent egg destruction by polyspermy and secure a large number of D-phase larvae. These results should be useful for developing the aquaculture process for Eastern Gooeyduck clam, Panopea sp.

• Journal of Korean society of Dental Hygiene
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• v.24 no.2
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• pp.175-185
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• 2024

Objectives: This study examines the association between emotional support and tooth brushing according to family cohabitation in the socio ecological model. Methods: The study used data from face-to-face interviews of 719 adults aged 30-90 years, living in Gangwon State. The dependent variables were tooth brushing after lunch and dinner (including before going to bed). The independent variables were living conditions and emotional support. Multiple logistic regression analysis was conducted to confirm the association between emotional support and tooth brushing. Results: The results showed that 81.4% of people lived with their family, and 85.9% had family (friends) with whom they could share oral problems (p<0.01). Among those living with their family, 82.3% (p>0.05) brushed after lunch and 81.9% (p>0.05) brushed after dinner. Tooth brushing after lunch was 1.5 times more likely among those who shared oral problems with their family (friends); however, this was not statistically significant (95% CI: 0.92-2.29). Tooth brushing after dinner was 1.0 times more likely among those who shared oral problems with their family (friends); however, this was not statistically significant (95% CI: 0.43-2.35). Conclusions: Emotional support may help to promote tooth brushing practice among adults.

• Asia-Pacific Journal of Business
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• v.15 no.1
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• pp.289-304
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• 2024

Purpose - Focusing on the FGI research method, the current status and issues of barrier-free tourism in Gangwon State were identified, and specific activation plans were derived Design/methodology/approach - This study conducted in-depth interviews with 20 experts related to the tourism industry. The issues, current status, and activation plan of barrier-free tourism in Gangwon State recognized by experts in tourism policy, tourism administration, tourism management, and tourism service industry were derived. Findings - First, the tendency of businesses to be promoted based on the non-disabled by not recognizing the weak as the main tourism demand group, second, confusion caused by the unification of terms related to barrier-free tourism, third, lack of finding tourism constraints subdivided according to the type and degree of disability, fourth, tourism information and evaluation indicators provided by prioritizing the convenience of suppliers rather than consumers, and fifth, the nature of the project focused on improving access to physical infrastructure. Subsequently, the results of the analysis of the plan to revitalize the barrier-free tourism industry in Gangwon State were as follows. First, education and programs to improve disability awareness appropriate to local conditions were activated, second, related information was unified and project sustainability was improved by creating a control tower for the barrier-free tourism industry at the provincial level, third, to overcome the employment crisis based on finding locally tailored jobs related to tourism care professionals, and fourth, to continuously secure quantitative and qualitative data and establish utilization plans. Research implications or Originality - First, it presents theoretical implications for related fields by providing issues and activation measures related to barrier-free tourism from the perspective of experts who are still lacking in research in academia. The practical implications are that based on the opinions of experts working in the tourism field, more specific issues of the barrier-free tourism industry in the province were presented, and policy and practical solutions were presented accordingly, suggesting realistic alternatives that can be carried out in the actual field.

• Journal of Korean society of Dental Hygiene
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• v.24 no.2
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• pp.149-162
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• 2024

Objectives: This study aimed to identify the level of digital oral health literacy among Korean adults in Gangwon-do. Methods: A survey was conducted through face-to-face interviews with adults aged 30-89 residing in Gangwon-do, South Korea. The independent variables were socio-demographic characteristics, including gender, age, education level, income, and occupation. The dependent variable was digital oral health literacy. The statistical analysis included Independent t-test, one-way ANOVA, Pearson correlation analysis, and multiple linear regression analysis, all performed using the SPSS 27.0 software program. Results: The elderly and those with poor socioeconomic status (p<0.001) had lower average scores due to poor digital oral health literacy. The ease of searching for oral health information and the utilization of digital devices to search for information on oral health displayed a significant relationship (r=0.730, p<0.001). To develop the use of digital devices, simplifying the search for oral information (p<0.001) is essential. Conclusions: All socio-demographic characteristics, except gender, displayed a correlation with the level of digital oral health literacy. Both environmental and individual aspects of the respondents' living conditions must be considered to improve digital oral health literacy.

• Proceedings of the Korea Water Resources Association Conference
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• 2021.06a
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• pp.411-411
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• 2021

최근 들어 이상기후에 따른 집중호우의 영향과 하천 유역 내에서의 토지이용의 증가로 하천의 하류부에서의 홍수피해는 점점 증가하고 있다. 이에 대비하기 위해 하천 시설물 설치를 계획하거나 이수, 치수 계획을 세우기 위해서는 하상이 어떻게 변화할 것인지 파악하는 것이 중요하다. 연구 대상 지역 세종특별자치시 금남면 영대리 유천천은 최근 10년간 홍수로 인한 피해액이 연평균 약 2.4억 원으로 나타났으며 매년 피해가 지속되고 있다. 유천천은 인위적 하도의 변경과 토지이용 상황의 변화 및 하천 골재채취, 댐 및 저수지 건설, 자연적인 홍수 등으로 하상이 변동되고 있으며, 그로 인해 생긴 유로의 변화로 발생할 수 있는 피해 예측이나 하천 시설물 설치를 위해서는 변동 결과의 예측이 필요하다. 따라서 본 연구에서는 대상 유역의 하상변동을 분석하기 위하여 HEC-RAS Sediment Transport Analysis(STA) 모형을 적용하였다. 적용한 데이터를 바탕으로 장래 하상변동 결과를 예측하였고 GIS 기법을 이용하여 유역의 특성 및 유출 특성에 관한 인자들을 도출하였다. 장래 1년, 5년, 10년 단위로 하상변동의 예측이 가능한 HEC-RAS STA 모형 분석 결과, 하상경사가 급한 각 하천상류 구간과 횡단시설물의 상류층에서는 하상저하가 발생하고, 하상경사가 완만한 하류 구간 부근에서는 일부 하상 상승이 발생하는 것으로 나타났다. 수위상승에 대비하여 지속적인 관찰과 상승구간에 대한 주기적인 하천 정비를 통하여 홍수기에 수위상승을 억제할 필요가 있을 것으로 판단된다. 본 연구의 결과는 하도 안정성과 이수와 치수안정성 확보, 하천의 효율적인 이용과 보전, 유지관리 시 기본해석으로 활용할 수 있을 것으로 사료된다.

• Journal of Korean Society of Disaster and Security
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• v.14 no.2
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• pp.51-59
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• 2021

Due to recent climate change, the flood damage is becoming larger due to the development of localized heavy rains. 2020.12 The Ministry of Environment provides 100-year flood flood map, but in the case of small rivers, river structures are designed at 50-80 years frequency, making it difficult to predict damage and provide evacuation information. This study prepared flood map of Donamcheon district in Geumnam-myeon, Sejong Special Self-Governing Province, which is a small stream and habitual flood zone. The flood level was calculated using HEC-RAS and the flood area was visualized through HEC-GeoRAS. The analysis results showed that property damage such as special crops and roads occurred during the 30-80 year frequency rainfall, and it affected private houses such as general residential areas and public land when the frequency occurred for 100 years. The results of the comparison and analysis of the flood map provided by the Ministry of Environment and the results of the HEC-GeoRAS simulation showed that the flood map provided by the Ministry of Environment did not consider small streams. Further studies on flood flood maps considering the large and small stream are needed in the future.

• The Journal of Engineering Geology
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• v.33 no.3
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• pp.413-426
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• 2023

This study presents the geochemical characteristics of cave water to evaluate its origin and flow path. From June 2022 to may 2023, river water was collected at two sites (WE1 and WE2) in the Donggang River around Baengnyongdonggul Cave, and cave water was collected at four sites (WE3 to WE6) inside Baengnyongdonggul Cave. Water samples were analyzed for major dissolved components. Both river and cave waters were classified as Ca-HCO₃ type. All cave water samples were supersaturated in carbonate minerals, suggesting that carbonate minerals would precipitate within the cave. Due to differences in the source of cave water and the degree of water-rock interaction, the geochemical characteristics of water from sites where the flow of cave water is observed (WE3 and WE6) and rimstone pools (WE4 and WE5) could be clearly distinguished. The cave water at WE6 flows in from the Donggang River, then passes through WE3 and flows back out into the Donggang River. The cave water at WE4 and WE5 is supplied from precipitation, but the flow path of cave water at WE4 and WE5 is different.