• Proceedings of The Korean Society of Agricultural and Forest Meteorology Conference
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• 2019.08a
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• pp.299-300
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• 2019

• Proceedings of The Korean Society of Agricultural and Forest Meteorology Conference
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• 2002.11a
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• pp.19-34
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• 2002

지난 8월 31일, 제15호 태풍 루사(RUSA)가 한반도를 관통하며 전국적으로 사상 초유의 피해를 입히고 지나갔다. 특히 강원도의 영동지역은 지형적인 영향으로 기상관측이래 일 최대강우량을 기록하기도 하였다. 하천이 범람하고 도심의 저지대가 침수되었으며 제방, 도로, 교량이 유실되는 등 그 피해가 다른 지역보다 극심하였다 중앙재해대책본부는 이번 태풍으로 모두 5조1천479억 원의 재산피해가 발생하고 인명피해는 실종자 33명을 포함 246명으로 최종 집계 발표하였다.(중략)

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2018.11a
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• pp.364-365
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• 2018

선박의 안전운항을 위해 해양기상 및 수로환경정보는 필수정보로서 현재 Weather Fax나 수로서지를 통해 정보를 활용하고 있다. e-Navigation 전략이행계획에는 해사서비스목록(MSP)을 정의 하였으며, 해양기상 및 수로환경정보를 전자 데이터로 서비스 하기 위해 서비스 개념과 기술 사양을 개발 중이다. 한국형 e-Navigation 서비스 개발 연구에서는 기상청과 국립해양조사원에서 생산하는 데이터를 이용하고 S-100 기반의 국제표준에 따른 데이터 서비스 기술을 개발하고 있다. 본 연구에서는 한국형 e-Navigation 서비스 아키텍처와 개발 기술을 기반으로 해양기상 및 수로환경정보 서비스 운영 개념을 설계 하였다.

• Journal of Korea Water Resources Association
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• v.43 no.5
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• pp.483-493
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• 2010

In this study, for the purpose of analyzing variability and periodicity of Korean hydrologic weather parameters, 5 hydrologic weather parameters data such as annual precipitation, annual rainy days, annual average temperature, annual average relative humidity, annual duration of sunshine are collected from 63 domestic meteorological stations that has the hydrologic weather parameters records more than 30 years. And in this study the variability and periodicity using the statistical methods like Wald-Wolfowitz test, Mann-Whitney test, and Wavelet Transform about hydrologic weather parameters is analyzed. The results of statistical analysis of variability and periodicity can be summarized as follows: 1) Variability commonly appeared in annual average temperature and annual average relative humidity. 2) Annual precipitation, annual rainy days and annual duration of sunshine showed different results according to area. 3) Periodicity appeared in annual precipitation and annual rainy days but did not appeard in annual average temperature, annual average relative humidity and annual duration of sunshine.

• Proceedings of the Korea Society for Energy Engineering kosee Conference
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• 2003.11a
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• pp.127-130
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• 2003

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.17 no.6
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• pp.121-132
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• 2018

Weather is an important factor affecting roadway transportation in many aspects such as traffic flow, driver 's driving patterns, and crashes. This study focuses on the relationship between weather and road surface condition and develops a model to estimate the road surface condition using machine learning. A road surface sensor was attached to the probe vehicle to collect road surface condition classified into three categories as 'dry', 'moist' and 'wet'. Road geometry information (curvature, gradient), traffic information (link speed), weather information (rainfall, humidity, temperature, wind speed) are utilized as variables to estimate the road surface condition. A variety of machine learning algorithms examined for predicting the road surface condition, and a two - stage classification model based on 'Random forest' which has the highest accuracy was constructed. 14 days of data were used to train the model and 2 days of data were used to test the accuracy of the model. As a result, a road surface state prediction model with 81.74% accuracy was constructed. The result of this study shows the possibility of estimating the road surface condition using the existing weather and traffic information without installing new equipment or sensors.

• Proceedings of the Korean Society of Crop Science Conference
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• 2019.04a
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• pp.186-186
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• 2019

• Journal of Korea Water Resources Association
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• v.43 no.4
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• pp.409-419
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• 2010

In this study, for the purpose of analyzing the characteristics of Korean hydrologic weather parameters, 9 hydrologic weather parameters data such as annual precipitation, annual rainy days, annual average relative humidity, annual average temperature, annual duration of sunshine, annual evaporation, annual duration of precipitation, annual snowy days and annual new snowy days are collected from 63 domestic meteorological stations that has the hydrologic weather parameters records more than 30 years. And the basic characteristics of hydrologic weather parameters through basic statistics, moving average and linear regression analysis are perceived. Also trend using the statistical methods like Hotelling-Pabst test and Mann-Kendall test about hydrologic weather parameters is analyzed. Through results of basic analysis, moving average and linear regression analysis it is shown that precipitation is concentrated in summer and deviation of precipitation for each season showed significant difference in accordance with Korean climate characteristics, besides the increase in annual precipitation and annual average temperature, annual average relative humidity and annual duration of sunshine reduction and annual rainy days is said to increase or decrease. The results of statistical analysis of trend are summarized as trend commonly appeared in annual average relative humidity and annual average temperature. and annual precipitation, annual rainy days and annual duration of sunshine showed different results according to area.

• Proceedings of the Materials Research Society of Korea Conference
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• 2000.11a
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• pp.81-81
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• 2000

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2020.10a
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• pp.90-90
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• 2020