바다이야기-한반도 바다가 따뜻해지고 있다

한인성,Han, In-Seong 한국어촌어항협회 2006 어항어장 Vol.75 No.-

서해 군산 연안에서 새우조망으로 어획된 저서생물의 종조성 및 군집구조

한인성(In-Seong HAN),엄기혁(Ki-Hyuk EOM),권정노(Jung-No KWON),박경동(Kyeong-Dong PARK) 한국수산해양교육학회 2016 水産海洋敎育硏究 Vol.28 No.1

Species composition of aquatic organism in the marine ranching area of Gunsan, Korea were investigated using shrimp beam trawl from May to December in 2010. A total of 91 species, 98,127 ind./㎢ and 877.6 ㎏/㎢ of aquatic organism were collected. Among them, species were included 60 species in Pisces, 21 in Crustacea and 10 in Mollusca. The individual dominant species, occupying over 10% of total individuals, were Latreutes anoplonyx(47,327 ind/㎢, 48.23%), Crangon hakodatei(11,578 ind./㎢, 11.80%) and Trachysalambria curvirostris(10,237 ind./㎢, 10.40%). And the biomass dominant species, occupying over 9% of total biomass, were Paralichthys olivaceus(135 ㎏/㎢, 15.4%), Okamejei kenojei(98.2 ㎏/㎢, 11.2%) and Portunus tribuberculatus(84.8 ㎏/㎢, 9.6%). From the cluster and MDS analysis based on Bray-Curtis similarity matrix of fourth root transformed data of number of species and individuals per unit area collected more than two times during this survey by each month and station was divided into three different groups. Group A showed seasonal similarity of characteristic of distribution in August and November, Group B in December and Group C in May.

도시화에 따른 부산과 대구의 일교차 변화 특성에 관한 연구

박명희 ( Myung Hee Park ),이준수 ( Joon Soo Lee ),안지숙 ( Ji Suk Ahn ),이혜현 ( Hye Hyun Lee ),한인성 ( In Seong Han ),엄기혁 ( Ki Hyuk Eom ),서영상 ( Young Sang Suh ),김해동 ( Hae Dong Kim ),배헌균 ( Hun Kyun Bae ) 한국환경과학회 2016 한국환경과학회지 Vol.25 No.2

In this study, changes in daily temperature range were investigated using daily maximum and minimum temperatures of Busan and Daegu for last 81 years (1934-2014), and also characteristics of daily temperature range and seasonal fluctuations by urbanization were examined. First, elapsing changes showed a lower decreasing trend in Busan (0.32℃) than Daegu (1.28℃) for last 81 years. Daily temperature range showed the highest rise in winter in both Busan and Daegu. Second, daily temperature range due to urbanization showed that Busan had a pronounced decreasing trend before urbanization meanwhile Daegu showed the same trend after urbanization. On seasonal changes, the results of Busan showed a decreasing trend in summer before urbanization, and in autumn after urbanization. For Daegu, the results showed a decreasing trend in spring before urbanization, and in winter after urbanization. Seasonal fluctuations of Busan showed little difference in the pre and post-urbanization, except in winter and summer. There was large difference in daily temperature range in winter after urbanization, and in summer before the urbanization. The results in Daegu showed that there was decreasing trend of daily temperature range in all seasons after urbanization.

한국 연근해 수온의 시공간적 장기변동 특성

성기탁,황재동,한인성,고우진,서영상,이재영,Seong, Ki-Tack,Hwang, Jae-Dong,Han, In-Seong,Go, Woo-Jin,Suh, Young-Sang,Lee, Jae-Young 해양환경안전학회 2010 해양환경안전학회지 Vol.16 No.4

국립수산과학원에서 지난 41년간(1968-2008년) 정선해양관측점에서 관측한 수층별 수온자료를 분석한 결과, 우리나라 동해, 서해 및 남해 해역의 표층수온은 상승하는 것으로 나타났다. 그러나 100m 수층의 경우 남해해역은 상승하지만 동해해역은 오히려 하강하는 것으로 나타났다. 남해 해역은 쿠로시오난류의 지류인 쓰시마난류의 강화로 인해 전 수층이 영향을 받으며, 따라서 전 수층에서 수온이 상승하는 경향을 만드는 원인이라 생각된다. 동해해역 100m 수층에서 수온하강의 경향은 주로 연안역의 하강 정도가 근해역의 상승정도보다 크게 나타나기 때문에 동해해역을 평균하면, 동해해역 전체적으로는 수온이 하강하는 것으로 나타났다. 동해해역 100m 수층에서 수온변동을 일으키는 요인으로 바람, 해류 등이 있으며, 본 연구에서 이 중 기상요소인 풍속의 변동과 수온변동에 대해서 분석하였다. 계절별로는 남해를 제외하고 동계의 상승률이 하계의 상승률보다 약 2배 이상 높게 나타나 장기적인 수온상승은 주로 동계의 수온 상승에 기인함을 알 수 있다. 남해의 경우 하계의 수온 상승률이 동계의 상승률보다 높게 나타나는데, 이는 쓰시마 난류의 세력 강화 및 중국대륙에서 유출되는 양자강수의 영향이라 생각된다. 우리나라 연안의 6개 관측점에서 관측한 기온과 풍속 자료 분석결과 점차적으로 기온이 상승하고 풍속이 약해지는 따뜻한 겨울이 되는 경향이 나타났다. 풍속의 약화는 해양에서 표면혼합층의 수심이 얕아지게 하는 원인이 되며, 표면혼합층의 두께가 얕아지게 되면 표층과 저층의 혼합 깊이가 얕아지게 되어 표층의 따뜻한 물이 저층으로 전달되는 양과 저층의 차가운 물이 표층으로 전달되는 양이 작아지게 된다. 따라서 표층의 수온은 점차 상승하게 되며, 예전 표면혼합층과 저층의 경계층 수온은 점차 낮아지게 된다. The result of analysis of the observed temperature data by the Serial Oceanography Investigation of National Fisheries Research and Development Institute (NFRDI) during last 41 years from 1969 to 2008 showed that sea surface temperatures in the East, West and South Sea of Korea were clearly increased. In case of 100m depth, temperature was increased in the South Sea of Korea, but it was decreased in the East Sea. Especially, the temperature around the coastal area in the East Sea was significantly decreased by the spatial distribution of long-term change of temperature on 100m depth. It should lead to the decreasing trend in the long-term change of temperature on 100 m depth in the entire East Sea. The increasing trend was clearly larger in wintertime than in summertime by a factor of about 2 It means that the long-term increasing trend of sea surface temperature in the Korean Waters is usually caused by the distinctive increasing trend in wintertime. As the results of the analysis of air temperature and wind speed on the 6stations around the coastal area in the Korean Waters, air temperature was found to be continuously increased, but wind speed to be gradually decreased in winter. The weakness of vertical mixing by decreasing of wind speed caused to make the surface mixed layer shallow. it could be considered that the increasing trend of surface temperature was caused by weak mixing between surface and intermediate layers.

기후변화에 따른 남해안과 제주연안 어업인들의 체감실태와 인식에 관한 연구

한인성(In-Seong HAN),고우진(Woo-Jin Go),김하원(Ha-Won KIM),윤선영(Sun-Young YOON),박경동(Kyeong-Dong PARK) 한국수산해양교육학회 2018 水産海洋敎育硏究 Vol.30 No.6

The purpose of this study is to identify the state of the climate change and its perception of climate change. This study appears that 58.8% of fishermen have experienced climate change. The results of regression analysis results have shown that levels of fishermen experiencing the effects of climate change vary in characteristics depending on gender, age, length of experience, type of fisheries and region(fishing area). The majority of respondents have responded that they are not aware of korean government’s climate change policy and emphasized that it is necessary to have improvement and management of marine environment and improvement fishing gears, methods and cultivation methods on climate change countermeasures. The result of perception survey show that it is essential for korean government and the fishermen to share relevant information and to consider method of cooperation.

기후변화에 따른 동해안 어촌어업의 실태 및 인식에 관한 연구

한인성(In-Seong HAN),서영상(Young-Sang SUH),윤선영(Sun-Young YOON),이수은(Su-Eun LEE),김하원(Ha-Won KIM),박경동(Kyeong-Dong PARK) 한국수산해양교육학회 2018 水産海洋敎育硏究 Vol.30 No.2

This study appears that 80.6% of fishermen have experienced climate change. Regression analysis results indicate no significant difference, but levels of fishermen experiencing the effects of climate change vary in characteristics depending on length of experience, age, type of fisheries and sea area(fishing area). About half of the respondents have shown that they are not taking any actions against the effects of climate change. The main reasons are that they either have lack of knowledge on how to respond to the impacts of climate change or have the perception that climate change is irresistible. The majority of respondents have responded that they are not aware of the government’s climate change policy and emphasized that it is necessary to have effective countermeasures strengthening strengthen R&D on climate change countermeasures. The result of perception survey have highlighted that it is essential for the government and the fishermen to share relevant information and to consider method of cooperation.

한파에 따른 표층수온의 지연시간 고찰 - 서해, 남해 -

김주연,박명희,이준수,안지숙,한인성,권미옥,송지영,Kim, Ju-Yeon,Park, Myung-Hee,Lee, Joon-Soo,Ahn, Ji-Suk,Han, In-Seong,Kwon, Mi-Ok,Song, Ji-Yeong 해양환경안전학회 2021 海洋環境安全學會誌 Vol.27 No.6

본 연구에서는 강한 한파가 발생했던 2018년과 온난 한파가 발생했던 2019년의 기온에 따른 수온의 반응 및 지연시간과 북풍계열 바람 빈도와의 상관관계를 분석하였다. 사용된 시간 자료는 국립수산과학원에서 제공하는 7개 지점 해역별 수온자료와 수온관측소 인근 7개 지점 AWS 기온자료를 이용하였다. 관측되지 못한 자료는 내삽법으로 근사값을 계산하였고, FIR Filter를 이용하여 자료의 주기성을 파악하였다. 그 결과, 강한 한파가 발생했던 2018년은 북풍계열 바람을 통해 차가운 공기가 남하하면서 기온을 하강시켜 전 해역에 저수온을 유발한 반면 온난 한파가 발생했던 2019년은 평년 수준의 기온으로 하강하였지만 수온은 크게 변화하지 않았다. 강한 한파가 발생했던 2018년 기온 하강에 따른 수온의 지연시간은 평균 14시간으로 0.7 이상의 높은 상관성을 나타냈고 온난 한파가 발생했던 2019년은 평균 지연시간이 20시간으로 0.44-0.67 사이의 상관성을 보였다. 본 연구를 통해 해역별로 기온 하강에 따른 표층수온의 반응을 해석하였고 지연시간을 파악함으로써 양식생물의 피해를 최소화하고 한파 피해의 신속한 대응에 기여할 수 것으로 기대한다. In this study, we examined the sea surface temperature (SST), air temperature (AT), and their time lag in response to an extreme cold wave in 2018 and a weak cold wave in 2019, cross-correlating these to the northern wind direction frequency. The data used in this study include SST observations of seven ocean buoys Real-time Information System for Aquaculture Environment provided by the National Institute of Fisheries Science and automatic weather station AT near them recorded every hour; null data was interpolated. A finite impulse response filter was used to identify the appropriate data period. In the extreme cold wave in 2018, the seven locations indicated low SST caused by moving cold air through the northern wind direction. A warm cold wave in 2019, the locations showed that the AT data was similar to the normal AT data, but the SST data did not change notably. During the extreme cold wave of 2018, data showed a high correlation coefficient of about 0.7 and a time lag of about 14 hours between AT and SST; during the weak cold wave of 2019, the correlation coefficient was 0.44-0.67 and time lag about 20 hours between AT and SST. This research will contribute to rapid response to such climate phenomena while minimizing aquaculture damage.

기후변화에 따른 한국 연근해 어업생산량 변화 분석

엄기혁 ( Ki Hyuk Eom ),김홍식 ( Hong Sik Kim ),한인성 ( In Seong Han ),김도훈 ( Do Hoon Kim ) 한국수산경영학회 2015 수산경영론집 Vol.46 No.2

This study aimed to analyze the relationship between sea surface temperature as a climatic element and catch amount of offshore and coastal fisheries in Korea using annual time series data from 1970 to 2013. It also tried to predict the future changes in catch amount of fisheries by climate change. Time series data on variables were estimated to be non-stationary from unit root tests, but one long-term equilibrium relation between variables was found from a cointegration test. The result of Granger causality test indicated that the sea surface temperature would cause directly changes in catch amount of offshore and coastal fisheries. The result of regression analysis on sea surface temperature and catch amount showed that the sea surface temperature would have negative impacts on the catch amount of offshore and coastal fisheries. Therefore, if the sea surface temperature would increase, all other things including the current level of fishing effort being equal, the catch amount of offshore and coastal fisheries was predicted to decrease.

방사성 물질의 해양누출 사고에 대한 체계적인 관리 시스템 구축방안

서영상(Young Sang Suh)(俆,榮祥),황재동(Jae Dong Hwang)(黃才東),한인성(In Seong Han)(韓仁盛),윤석현(Seok Hyun Yoon)(尹錫賢),임월애(Wol Ae Lim)(林月愛) 위기관리 이론과 실천 2011 Crisisonomy Vol.7 No.6

2011년 3월 발생한 해저지진으로 인해 일본 후쿠시마 제1원자력발전소의 사고가 발생하였다. 이로 인해 다량의 방사성물질이 해수 중으로 유입되었다. 후쿠시마 제1원자력발전소 사고 후 방사성물질은 전 세계적으로 문제화 되었다. 특히 우리나라는 일본과 인접하고 있어, 일본 후쿠시마 원자력발전소에서 누출된 방사성물질에 대해 우리국민은 직접적인 피해를 걱정하였다. 방사성물질은 대기 및 해양을 통해 이동과 확산을 하며, 해양생물의 체내에 농축되기도 한다. 따라서 해양에서 해수 및 해양생물 시료를 채취할 수 있는 해양조사 체계 구축은 물론 우리나라 주변해역의 해류 흐름을 파악할 수 있는 위성자료의 데이터베이스화 및 해양의 해류에 대한 예측모델의 구축이 필요한 실정이다. 예측모델을 기반으로 본 연구에서는 해양에서 방사성 물질의 이동과 확산, 해양생물 체내 농축에 대한 종합적인 위기관리 시스템 구축방안을 제시한다. Highly radioactive materials have been released into the ocean at the Fukushima Nuclear Power Plant, following the Tohoku earthquake and tsunami on 11 March 2011. The Japanese leakage accident became one of the most serious global issues. It especially draws concern from Koreans who fear possible direct radiation exposure due to their geographic closeness and distrust Japanese government information on radiation. {According to a report published on 29 October 2011 by a French research institute, the pollution of the Pacific Ocean was probably 30 times bigger than the Tokyo Electric Power Company reported in May 2011.} Radioactive substances usually spread through air and oceans, and can be accumulated in marine life and eventually in human body. To minimize the potential radiation exposures and long-term effects on human health, we propose to design and establish an integrated crisis management system. Under this system, sea water and biological samples will be periodically and extensively collected to detect and identify spatial and ecological pathways of radioactivity. Together with data from satellites, the collected data will be utilized to forecast the magnitude and dispersion of radioactivity by developing a bio-physical coupling model that combines general oceanic circulation and ecological models.

연구논문 : 부산의 도시건조화 특성에 관한 연구

박명희 ( Myung Hee Par ),이준수 ( Joon Soo Lee ),서영상 ( Young Sang Suh ),한인성 ( In Seong Han ),이혜현 ( Hye Hyun Lee ),김해동 ( Hae Dong Kim ),배헌균 ( Hun Kyun Bae ) 한국환경과학회 2014 한국환경과학회지 Vol.23 No.11

It is well known that urban relative humidity has continuous decreasing trend owing to the influence of urbanization. The change of relative humidity is directly influenced by two factors, namely, temperature effect and water vapor effect in various urban effects. In this study, the temperature and the water vapor effects on the relative humidity change were analyzed by using monthly mean relative humidities for a long period(1961~2013) in Busan and Daegu. The major results obtained in this study can be summarized as follows. Firstly, the urban dryness was caused mainly by water vapor effect in summer. But, for the other seasons, the urban dryness is mainly due to the temperature effect. Secondly, the relative humidity in Busan is on the decrease until now. This phenomenon is similar to another Korean huge cities such as Seoul, Daejeon and Incheon.