• 대한한의학원전학회지
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• 제27권1호
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• pp.15-28
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• 2014

Objective : Jeol-sik, (festive seasons every 15 days based on sun cycle), refers to both Korean Traditional Festival food(jeol-sik), intertwined between months, and in-season meals(si-jeol-sik) in which the ingredients used are produced in each and one of the four season. I found that ingredients in Si-jeol-sik of Autumn are helpful for strengthening one's life force. Method : The study found that si-jeol sik for fall season has strong characteristic of casting out demons. When making songpyeon(half-moon-shaped rice cake) for Chuseok (Korean Thanksgiviing Day), they are steamed with pine needs spreaded underneath because pine needles are believed to have power in casting away evil spirits. For harvest ceremony, which were frequently held in October, people consumed steamed rice cakes garnished with red beans, which were considered to negate bad fortunes. Result : To prevent respiratory diseases caught esaily in fall due to wide daily temperature difference and dry weather, white good ingredients such as radish, pear, and taro are used. Conclusion : Main fall holidays are Chil-soek, Baek-Jung, Chu-seok. The best feature of Si-jeol-sik for fall season is that they cast out demons. Also, fall si-jeol-sik consist of many white ingredients for protecting lungs.

• 한국지구과학회지
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• 제33권5호
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• pp.422-433
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• 2012

The purpose of this study is to investigate the characteristic changes of the Changma season in the 2000s. To accomplish this goal, we have used daily rainfall data collected over nearly 40 years (1971 to 2010). The average summer precipitation data including the Changma season were collected from 16 weather stations that are placed across the three major regions (i.e. central region, southern region, and Jeju region) as Korea Meteorological Administration divided. These precipitation data were analyzed to find out characteristic changes of the Changma season. Results of the precipitation data comparison among the major regions that, monthly average precipitation in the central region was the highest in July; its precipitation tended to increase from May to September. In the southern region, the precipitation amount was lowest in June and tended to increase in May, September, and August. In the Jeju region, the precipitation has been the highest in June and July for the past 30 years, whereas September has been highest month in the last 10 years. The precipitation amount in the Jeju region decreased both in June and July, whereas it tended to grow in May, August and September. A correlation coefficient formula by Karl Pearson has been used to find out correlations between the Changma season and the precipitation of the major regions in 2000s and normal years. It was found that the correlation coefficient has decreased from 0.723 to 0.524 in the 2000s (2001 to 2010) compared to normal years (1971 to 2000).

• 대한지리학회지
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• 제44권2호
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• pp.105-121
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• 2009

지형 굴곡이 심한 하와이 화산섬의 경우, 측후소 분포가 매우 제한적이어서 공식적인 기온 분포도가 작성되지 못하고 있는 실정이다. 본 연구에서는 이러한 기온 지도화의 문제점을 해결하는 방법으로 위성기반의 지표온도 자료로부터 기온추정치를 추출하여 내삽법에 필요한 입력자료로 사용하였다. 추출된 온도값을 표본값으로하여 거리 역비례 가중치법(IDW)과 공동크리깅 (cokriging)을 적용하여 기온추정치를 지도화하였다. 기온과 고도값을 함께 이용한 cokriging이 IDW에 비해 크게 향상된 추정 오차값을 나타내었다. Cokriging은 주 변수와 고도와 같은 추가 변수 간의 상관관계가 유의하게 나타날 때 효과적으로 사용되는 내삽법이지만, 내삽 정확도는 계절적인 기상조건에 민감하게 영향받는 것으로 조사되었다. 강수량이 크게 증가하는 우기에는 건기에 비해 공간적인 기온변화가 크며, 이에 따라 기온 추정 오차값도 우기에 높게 나타났다.

• 대기
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• 제31권5호
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• pp.539-551
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• 2021

In this paper, the weather records in 'Nanjung Ilgi' were investigated and the weather characteristics of the southern coast of Korea (SC_Korea) was discussed. The Nanjung Ilgi is a personal diary written by admiral Yi Sun-sin from January 1592 to November 1598 during the 7-year war caused by the Japanese invasion. He is a respected great leader in the history of world naval warfare, winning all 23 battles against the Japanese. Of the 1593 days of diaries currently preserved, only 42 days have no weather records. Weather was recorded in detail, including sky conditions, precipitation, wind characteristics and others. Weather records were extracted from the diary, converted to the solar calendar, and compared with the meteorological data of Yeosu. The average annual precipitation day is about 90 days, which is similar to the current 95~100 days. As in the current climate, precipitation frequently occurs for about 30 days in summer, but less than 15 days in other seasons, and the rainy season starts from June 14 to 21 and ends from July 6 to 17. It seems that the abnormal cold and heat phenomena, which deviate significantly from the seasonal average climate, occurred on 6 and 21 days, respectively, over 7 years. This means that the weather records of Nanjung Ilgi can be used as valuable data on the climate of SC_Korea in the late 16th century. The fact that he recorded the weather even in such extreme battle conditions shows that he clearly recognized the importance of weather in warfare.

• 한국건설관리학회논문집
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• 제23권4호
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• pp.78-83
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• 2022

많은 국내 건설업계들은 건설관리에 날씨정보를 활용하기 위해 지속적으로 노력하고 있다. 건설업은 옥외작업이 많기 때문에 날씨의 영향이 크게 반영된다. 그러므로 정확한 공사기간을 예측하기 위해서는 분명히 날씨 정보가 필요하며, 이를 고려한 작업 불가능 일수 산정은 매우 중요하다. 하지만 정확한 장기 날씨 예측이 힘들기 때문에 많은 건설 회사들이 정확한 공사기간 산정에 어려움을 갖고 있다. 이에 본 연구에서는 과거 장기 날씨 정보를 분석한 후 현장 위치 및 일자에 따라 지역별, 계절별 기상정보를 건설관리 시스템에 적용하여 작업가능일과 현장정보, 기상정보를 확인하고자 한다.

• 한국환경과학회지
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• 제6권6호
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• pp.613-628
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• 1997

Diurnal variations of air quality due to the characteristic features of local weather phenomena over Kunsan, Taegu, and Pohang are analyzed using various synoptic wand fields and the characteristics of local weather during the period of 1990 to 1992. The air pollutants analyzed are sulfur dioxide($SO2_$), nitrogen dioxide($NO_2$), and oxidants ($0_3$). The synoptic wind fields estimated at over the 850 hPa geopotential height are divided in terms of four wand directions and two wand speed categories for each season. The synoptic weather conditions are also classified Into two categories depending on the 850 hPa cloud amounts. The present study shows that the $SO_2$ concentration over Kunsan, and Taegu was maximum at the two or three hours after sunrise and second primary was three or flour hours after sunset. On the other hand, Its concentration over Kunsan was malnmum at 1900 LST or 2000 LST The $O_3$ concentration over the three cities shows Its mapdmum In the afternoon when the solar radiation is strong. The $NO_2$ concentration over Kansan shows in reverse proportion to the $O_3$ concentration over the Kunsan.

• 전자공학회논문지
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• 제53권1호
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• pp.71-78
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• 2016

본 논문은 인공 신경망에 기반을 둔 새로운 전력 수요 예측 모델을 제시한다. 인공 신경망 입력 변수로 시간과 날씨요소를 고려하였다. 시간 요소는 하절기와 동절기 전력수요 데이터의 자기 상관계수를 측정하여 선정하였고, 날씨요소는 피어슨 상관계수를 이용하여 선정하였다. 중요한 날씨요소로는 온도와 이슬점으로 이들은 전력수요와 밀접한 상관관계를 가지고 있다. 반면에 습도, 기압, 풍속 등과 같은 날씨요소는 전력수요와의 상관관계가 높지 않게 나타나 신경망의 입력 변수에서 제외하였다. 실험결과 새로이 제안한 인공 신경망을 이용한 전력수요 모델은 시간요소 및 날씨요소와 이에 대한 가중치를 피크 전력율과 계절에 따라 차등 적용하여 높은 적중률을 보였다.

• Plant Resources
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• 제7권1호
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• pp.36-38
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• 2004

Bacterial grain rot of rice caused by Burkholderia glumae was examined between weather condition and disease incidence. From 1998 to 2000, average disease incidence was 3.0 ％ without difference in survey regions. However, it was related closely to amount of rainfall that disease incidence higher in 1998 and 2000 to 3.0 ％ and 3.6 ％ respectively than 2.3 in 1999 relatively small volum of rainfall season.

• Journal of Multimedia Information System
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• 제5권4호
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• pp.245-256
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• 2018

This study estimated rainfall information more effectively by image signals through the information system of weather radar. Based on this, we suggest the way to estimate quantitative precipitation utilizing overlapped observation area of radars. We used the overlapped observation range of ground hyetometer observation network and radar observation network which are dense in our country. We chose the southern coast where precipitation entered from seaside is quite frequent and used Sungsan radar installed in Jeju island and Gudoksan radar installed in the southern coast area. We used the rainy season data generated in 2010 as the precipitation data. As a result, we found a reflectivity bias between two radar located in different area and developed the new quantitative precipitation estimation method using the bias. Estimated radar rainfall from this method showed the apt radar rainfall estimate than the other results from conventional method at overall rainfall field.

• 한국기후변화학회지
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• 제8권1호
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• pp.11-19
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• 2017

This study examined the relationship between the initiation timing typhoon season in the Northwestern Pacific and the tropical sea surface temperature (SST) using a numerical simulation. The initiation timing of the typhoon season is closely associated with SSTs over the Indian Ocean (IO) and the eastern Pacific (EP) in the preceding winter and early-spring. The experiment based on the Weather and Research Forecast (WRF) model showed that the start date of the typhoon season is delayed for about one month when the SSTs over the IO and the EP increase in the preceding winter. The forced tropical SST pattern induces anticyclonic anomalies in the Northwestern Pacific, which is an unfavorable condition for typhoon development, and hence it could delay the initiation of the typhoon season.