• Proceedings of the Korea Contents Association Conference
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• 2019.05a
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• pp.173-174
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• 2019

4차산업혁명시대의 기상 분야에 드론을 활용한 연구가 활발히 진행되고 있다. 대기경계층은 지표면에 가까워 기상현상이 활발하여 인간 활동에 밀접한 영향을 미쳐 하층 대기에 대한 연구가 필요하다. 이에 본 연구에서는 기상센서를 기상관측용 드론에 탑재하여 연직 기상관측 실험을 수행함으로써 드론을 활용한 기상관측의 가능성을 확인하였다.

• Proceedings of the Korea Contents Association Conference
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• 2014.11a
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• pp.361-362
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• 2014

본 연구는 기상청에서 제공하는 기상정보를 활용하여 제주도의 대표적인 관광자원 중 하나인 올레길 방문자들에게 더 나은 서비스 제공을 위한 콘텐츠를 개발하는데 목적이 있다. 콘텐츠 개발에 앞서 현재 제주도에 서비스되는 기상정보의 종류를 살펴보고, 올레길 방문자들의 기상정보 활용실태를 설문조사 하였다. 마지막으로 설문결과를 참고하여 올레길 방문자들이 쉽게 활용할 수 있는 스마트폰 앱 콘텐츠를 개발하였다.

• Proceedings of the Korea Contents Association Conference
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• 2014.11a
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• pp.349-350
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• 2014

제주는 해양레저의 메카로서 많은 관광객이 찾고 있지만, 전문해양기상서비스 콘텐츠가 부족한 실정이다. 이에 본 연구는 기상청의 기상정보를 활용한 해양레저 기상서비스 콘텐츠를 개발하여 더 나은 서비스를 제공하는데 목적이 있다. 콘텐츠 개발에 앞서 현재 해양레저인들이 이용하고 있는 해외 사이트의 장단점을 살펴보고, 그들의 기상정보 활용실태를 조사하였다. 그리고 설문결과를 참고하여 해양레저 인구가 쉽게 활용할 수 있는 스마트폰 앱 콘텐츠를 개발하였다.

• Proceedings of the Korea Contents Association Conference
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• 2018.05a
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• pp.63-64
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• 2018

강수확률예보에 대한 사용자 행동을 이해하고, 만족도의 변화를 분석하기 위해 2017년 조사된 설문조사 결과를 도입하고, 예보의 가치평가 분야에서 널리 활용되어 온 가치스코어를 만족도 평가에 사용하였다. 분석 결과 예보사용자들은 확률예보를 효율적으로 사용할 수 있는 적절한 임계확률을 인지하지 못한 것으로 나타났다. 동일한 예보라도 분석 시기에 따라 사용자의 불만족 정도가 만족도에 미치는 영향은 다르게 나타날 수 있으므로 사용자들이 민감하게 반응하는 시기를 적절히 구분하여 분석할 수 있어야 할 것이다. 그리고 분석 기간 및 연령에 따라 사용자들의 의사결정 기준인 확률예보의 임계확률을 변화시키는 것만으로 일부 사용자 그룹의 만족가치를 향상시킬 수 있는 것으로 나타났다.

• Journal of Environmental Science International
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• v.15 no.11
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• pp.1003-1010
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• 2006

It is very difficult to forecast accurately a damage from the natural disasters which occurs frequently. If the significant weather event was forecasted one or two days ago, we will be able to minimize a damage from the severe weather event through the suitable prevention activities. It said that 2000's our country's total damages from the meteorological disasters was several trillion won(Park et al, a, b, 2005). Therefore, we analyzed the Korea Meteorological Administration(KMA) and television broadcasting's reports, information contents, and transmission system, an ex post facto valuation about typhoon Nabi which struck the Korean peninsula from September 5 to 7, 2005. Through these investigations, we want to present the basic data to rises the application effect of disaster prevention meteorological information. We think KMA must present many information report to promote a citizen's understanding about the meteorological information and the serious disaster situation. And also we think the KMA and television broadcasting must present an advisable reports, the contents which is suitable to disaster response stages. And we must grasp the problem of disaster prevention meteorological information through an ex post facto examination, improve it effectively.

• The Journal of the Korea Contents Association
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• v.19 no.11
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• pp.12-21
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• 2019

In the era of the Fourth Industrial Revolution, drones have become a flexible device that can be integrated with new technologies. The drones were originally developed as military unmanned aircraft and are now being used in various fields. In the environment and weather observation area, the atmospheric boundary layer is near the surface where the atmosphere is the most active in the meteorological phenomenon and has a close influence on human activities. In order to carry out the study of these atmospheric boundary layers, it is necessary to observe precisely the lower atmosphere and secure the observation technology. The drones in the meteorological field can be used for meteorological observations at a relatively low maintenance cost compared to existing equipment. When used in conjunction with various sensors, the drones can be widely used in atmospheric boundary layer and local meteorological studies. In this study, the possibility of meteorological observations using drones was confirmed by conducting vertical meteorological (temperature and humidity) observation experiments equipped with a combined meteorological sensor and a radio sonde on drones owned by NIMS.

• International Journal of Contents
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• v.15 no.4
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• pp.65-73
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• 2019

Social media is a massive dataset in which individuals' thoughts are freely recorded. So there have been a variety of efforts to analyze it and to understand the social phenomenon. In this study, Twitter was used to define the moments when negative perceptions of the Korean Meteorological Administration (KMA) were displayed and the reasons people were dissatisfied with the KMA. Machine learning methods were used for sentiment analysis to automatically train the implied awareness on Twitter which mentioned the KMA July-October 2011-2014. The trained models were used to validate sentiments on Twitter 2015-2016, and the frequency of negative sentiments was compared with the satisfaction of forecast users. It was found that the frequency of the negative sentiments increased before satisfaction decreased sharply. And the tweet keywords and the news headlines were qualitatively compared to analyze the cause of negative sentiments. As a result, it was revealed that the individual caused the increase in the monthly negative sentiments increase in 2016. This study represents the value of sentiment analysis that can complement user satisfaction surveys. Also, combining Twitter and news headlines provided the idea of analyzing the causes of dissatisfaction that are difficult to identify with only satisfaction surveys. The results contribute to improving user satisfaction with weather services by efficiently managing changes in satisfaction.

• International Journal of Contents
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• v.18 no.1
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• pp.17-26
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• 2022

With the acceleration of urbanization and industrialization, air pollution has become increasingly serious, and the pollution control situation is not optimistic. Climate change has become a major global challenge faced by mankind. To actively respond to climate change, China has proposed carbon peak and carbon neutral goals. However, atmospheric pollutants and meteorological factors that affect air quality are complex and changeable, and the complex relationship and correlation between them must be further clarified. This paper uses China's 2013-2018 high-resolution air pollution reanalysis open data set, as well as statistical methods of the Pearson Correlation Coefficient (PCC) to calculate and visualize the design and analysis of environmental monitoring big data, which is intuitive and it quickly demonstrated the correlation between pollutants and meteorological factors in the temporal and spatial sequence, and provided convenience for environmental management departments to use air quality routine monitoring data to enable dynamic decision-making, and promote global climate governance. The experimental results show that, apart from ozone, which is negatively correlated, the other pollutants are positively correlated; meteorological factors have a greater impact on pollutants, temperature and pollutants are negatively correlated, air pressure is positively correlated, and the correlation between humidity is insignificant. The wind speed has a significant negative correlation with the six pollutants, which has a greater impact on the diffusion of pollutants.

• Journal of the Korean Society of Tobacco Science
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• v.26 no.1
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• pp.17-26
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• 2004

This study was conducted to get the informations for reducing the variation of chemical contents of leaf tobacco. The contents and variations of some chemical constituents of leaf(Leaf, Grade 2) produced in various growing areas from 1999 to 2003 and the effects of meteorological factors on the chemical constituents of leaf were analysed. The contents of analysed constituents of leaf showed high significant differences among crop years in flue-cured and burley, particularly the variation among crop years were higher in chlorine and nicotine contents while lower in total nitrogen content. There were significant differences among growing areas in nicotine and total sugar contents of flue-cured leaf and chlorine content of burley leaf. The total sugar content were negatively correlated to the nicotine and total nitrogen contents in flue-cured leaf. The average air temperature in June and July were positively correlated to the nicotine content of leaf while negatively to total sugar, and the precipitation in May were negatively correlated to the nicotine while positively to total sugar.

• Journal of Forest and Environmental Science
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• v.39 no.4
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• pp.235-245
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• 2023

Forest fuel moisture content is a crucial factor influencing the combustion rate and fuel consumption during forest fires, significantly impacting the occurrence and spread of wildfires. In this study, meteorological data were gathered using a meteorological measuring device (HOBO data logger) installed in the south and north slopes of Kangwon National University Forest, as well as on bare land outside the forest, from November 1, 2021, to October 31, 2022. The objective was to analyze the relationship between meteorological data and fuel moisture content. Fuel moisture content from the ground cover on the south and north slopes was collected. Fallen leaves on the ground were utilized, with a focus on broad-leaved trees (Prunus serrulata, Quercus dentata, Quercus mongolica, and Castanea crenata) and coniferous trees (Pinus densiflora and Pinus koraiensis), categorized by species. Additionally, correlation analysis with fuel moisture content was conducted using temperature (average, maximum, and minimum), humidity (average, minimum), illuminance (average, maximum, and minimum), and wind speed (average, maximum, and minimum) data collected by meteorological measuring devices in the study area. The results indicated a significant correlation between meteorological factors such as temperature, humidity, illuminance, and wind speed, and the moisture content of fuels. Notably, exceptions were observed for the moisture content of the on the north slope and that of the ground cover of Prunus serrulata and Castanea crenata.