• Journal of the Korean Geographical Society
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• v.35 no.4
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• pp.519-528
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• 2000

본 연구에서는 지난 20세기 동안 한반도 중부 지방의 여름철 7월과 8월의 일최고기온과 일최저기온의 지역적 패턴을 조사하였다. 조사결과 연구기간 동안 여름철 일최고기온의 평균 및 일정 임계치 이상의 고온 특이일의 빈도가 감소하는 경향을 나타냈다. 반면, 여름철 일최저기온의 평균은 지속적으로 상승하여 결과적으로 이 지역의 여름철 일교차의 평균이 급격히 감소하는 경향을 보였다. 일최고기온의 감소 추세는 1950년대 이래로 진행되어온 조림사업으로 인한 삼림 임목 축적량의 증가와 관련성이 있는 것으로 추정되었다. 이 밖에도 본 연구에서는 현재의 도시화 지구온난화가 지속된다는 가정 하에 기온극값 발생빈도와 장기적인 패턴변화를 예측하는 모델을 제시하였다.

• Proceedings of The Korean Society of Agricultural and Forest Meteorology Conference
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• 2002.11a
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• pp.81-84
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• 2002

우리나라를 포함한 동아시아 지역의 기온상승, 특히 일최저기온 상승은 상당부분 도시화에 기인한 것으로 보고되었다(Hulme et al., 1994). 따라서 도시화 영향을 효과적으로 제거하여야 한반도에서 진행되는 온난화의 경향을 파악할 수 있으며 궁극적으로 장기 기후변화에 대한 예측과 대응이 가능하다 할 것이다(백과 권, 1994).(중략)

• Korean Journal of Agricultural and Forest Meteorology
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• v.4 no.1
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• pp.58-63
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• 2002

Since the rapid urbanization period coincides with the start of global warming, climate data might be contaminated with urbanization effect in Korea. Monthly normals of daily minimum, maximum, and mean temperature of 14 stations were calculated for 1951-1980 and 1971-2000 periods. Differences in two temperature normals were regressed to the natural logarithms of population increase at corresponding 14 cities from 1966 to 1990. The regression models were used to remove potential effects of urbanization from the apparent warming, and to determine the net contribution of global warming to the temperature change in Korea during the recent half century. According to the model calculation, there was little evidence of global warming in the warm season (May through November), while urbanization effect was common in all season except April. Up to 0.5$^{\circ}C$ warming of nighttime temperature was found to be induced by urbanization. Cool season temperature was increased by up to 0.6$^{\circ}C$ due mainly to the global warming of daytime temperature.

• Proceedings of The Korean Society of Agricultural and Forest Meteorology Conference
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• 2001.06a
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• pp.159-162
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• 2001

근년의 "따뜻한 겨울" 추세와는 달리 2001년 1월 중순은 일주일 이상 혹독한 한파가 지속되었다. 최저기온이 영하 $25^{\circ}C$ 이하를 기록한 지점만도 철원(-29.2$^{\circ}C$), 홍천(-26.7$^{\circ}C$), 동두천(-26.2$^{\circ}C$), 제천(-26.$0^{\circ}C$), 대관령(-25.6$^{\circ}C$) 등 다섯이며, 순천, 진주, 정읍 등 남부지방 여러 곳에서도 영하 15$^{\circ}C$ 이하의 최저기온이 관측되었다.(중략)관측되었다.(중략)

• Journal of the Korean association of regional geographers
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• v.17 no.2
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• pp.167-180
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• 2011

This paper investigates the changes of diurnal temperature range (DTR) by season and region in South Korea using daily maximum temperature and daily minimum temperature from 1954 to 2009. It also attempts to find what causes these changes. The daily minimum temperature distinctively increased during the latter half of the research period (1988~2009) than the first half of the year (1954~1987) leading decreases in DTR, while the rise in daily maximum temperature was not distinct during the research period. The DTR shows slightly increasing trend in spring. but decreasing trend in fall. The DTR is decreasing in urban region while it is increasing in rural area. The degree of the DTR decrease is bigger in large urban region than in medium-small urban region. The DTR in urban region is affected by the amount of clouds in spring and tile duration of sunshine in fall. The DTR in rural area is affected by the amount of clouds in spring and the number of days with precipitation in fall.

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2006.11a
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• pp.439-442
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• 2006

기후변화가 벚꽃과 같은 생물계절현상에 미치는 영향을 조사하고자, 벚꽃의 개화일과 기온과의 상관관계를 비교하여, 각 월별로 특히, 1월, 2월, 3월의 일평균기온, 일최저기온, 일최고기온의 월별 평균 기온과 벚꽃개화일의 비교에서 어느 것이 더 상관관계가 높은지를 보았다. 또한, 1950년대 이후로 크고 작은 엘니뇨의 발생은 13회 정도로 약 $2{\sim}5$년을 주기로 발생하였다. 엘니뇨현상은 남방진동 ENSO 등의 기상현상과 함께 발생한다. 엘니뇨가 발생한 해의 한반도는 겨울철 온도는 높아지고, 겨울철 강수량은 높아지는 경향이 있다. 이러한 엘니뇨현상이 1, 2, 3월의 기온에 어떤 영향을 준다면, 벚꽃의 개화일도 변화할 것이다. 위의 자료를 모두 비교해보고 이들 상호간의 영향관계를 알아낸다면, 앞으로 기온을 통한 벚꽃개화일의 예측이나, 반대로 벚꽃개화일을 통한 기온과 엘니뇨현상 등의 기후변화를 예측해 낼 수 있을 것으로 판단된다.

• Communications for Statistical Applications and Methods
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• v.18 no.1
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• pp.1-12
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• 2011

We analyzed the observed temperature data for 50 years on 5 representative points in Korea to verify global warming and the increase in climate variability. We found that there was some level of global warming but we could not disregard the effects of urbanization. In addition, we could not find any information for the increase in climate variability.

• Journal of the Korean Geographical Society
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• v.45 no.4
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• pp.444-460
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• 2010

This study analyzed the changes in climate elements that affects the opening and closing dates of the ski resorts, and the snowmaking. Climatology data from the weather stations adjacent to the ski resorts in the central region of Korea were analysed to understand the snowmakig status. The fan type snowmaker has been used in the capital region (over 94% of the whole snowmaking), while the gun type snowmaker has been used in Yongpyong. There has been obviously an increased trend of the daily minimum temperature in November in Daegwallyeong and a little decreased trend in Icheon after 1980s. That caused the effect on the opening dates of the ski resort in the capital region of Korea during 2000s. Closing dates of ski resorts were earlier in the capital region (with $2{\sim}4^{\circ}C$ of daily maximum temperature in mid-February) than in Yongpyong. The obviously increasing rate of the snowmelting day in Icheon also hardened the management and maintenance of the ski resorts in the capital region of Korea.

• Journal of the Korean Geographical Society
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• v.46 no.3
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• pp.257-276
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• 2011

This study aimed to analyze the changes of extreme temperature indices in order to investigate impacts of urbanization on changes of extreme temperature. It was analyzed 16 indices related to extreme temperature indices to 60 weather stations in South Korea. Extreme temperature indices-related summer mostly increased, and its related to winter decreased. Percentile-based indices were clearly increased more than fixed-based indices as a tropical night. Decreasing trend of extreme temperature indices related to winter had more clear than increasing trend of extreme temperature indices related to summer. It was similar to trend that urban temperature was more clearly increased in winter than summer. Decreasing trend of indices-related daily minimum temperature had more clear than increasing trend of indices-related daily maximum temperature. Also, it was similar to increasing trend of minimum temperature had more clear than maximum temperature.

• Journal of the Korean Geographical Society
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• v.43 no.5
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• pp.715-727
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• 2008

This study analyzed changes on the best condition of temperature and relative humidity for making artificial snows in the Yongpyong Ski Resort using data from Daegwallyeong. Depth of snowfall and snowfall days have decrease since 1990s. If the Yongpyong Ski Resort has only to depend on natural snows, it would be difficult to make and maintain ski slope. There are two times of snowmaking during ski seasons: one is the first snowmaking (October-November) for opening ski slopes and the other is the reinforcement of snowmaking (December-March) for maintaining snow quality during the seasons. Days having the best condition for the first snowmaking (daily minimum temperature below $-1^{\circ}C$ and daily average relative humidity 60 to 80 percent) decreased after 1970s. Days having the best condition for the reinforcement of snowmaking also decreased. While temperature changes are more evident than humidity changes for the first snowmaking, humidity changes are more obvious than change of temperature for the reinforcement of snowmaking. In the future climate projection by A1B scenarios, the length of ski seasons projected to decrease a 10 to 40 percent against the period of 1973-2008. The climate condition for the snowmaking projected to be poor, especially the due to increase of temperature.