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박종길,석경하,김지형,차주완 한국환경과학회 2002 한국환경과학회지 Vol.11 No.12
This paper aims to find the characteristics of concentration distribution of coastal urban air pollutants. For this purpose, It was used the daily meteorological data and hourly concentration data O_3 and NO_2 in Busan metropolitan city from 1994 to 1996. It was investigated the annual and monthly distribution of ozone and nitrogen dioxide concentration at each site in Busan, and also investigated the characteristics of concentration change of air pollutants with time under the sea breeze. As a results, the concentration of nitrogen dioxide and ozone tend to be increased every year and nitrogen dioxide concentration is higher than ozone concentration at all site in Busan. The concentration of ozone is high in summer season and low in winter season, but the concentration of nitrogen dioxide have a reversed trend. The monthly peak concentration of ozone occurred in April and September, while the monthly minimum concentration of nitrogen dioxide occurred in August. Their trend were indentified by sites near the coastline than sites stands apart from the coastline. The sea breeze occurred annual mean 81 days in Busan from 1994 to 1996. The main wind direction of sea breeze was classified into southeasterly. In case of southwesterly, It was pronounced the south wind and southwest wind. In case of southeasterly, the occurrence frequency of east wind was high. Especially, the concentration of urban air pollutants, such as ozone and nitrogen dioxide, were high on time which the sea breeze flow, and the areas that ozone concentration was high moved from outside part to central part of city with time. In costal urban such as Busan, the wind direction of sea breeze is influenced the influenced the change of ozone and nitrogen dioxide concentration on time which the sea breeze flow at each site and air pollutants concentration of sites on the pathway of sea breeze.
Joo-Wan Cha,Seong Soo Yum,Ki-Ho Chang,Byoung Cheol Choi,Jin Yim Jeong 한국기상학회 2006 한국기상학회 학술대회 논문집 Vol.2006 No.-
The Cloud Physics Observation System (CPOS) is installed at the Daegwallyeong Weather Station. This study presented retrieval methods of cloud parameters from the remote sensing and in situ measurement instruments such as MRR, MWR and FSSP installed at the CPOS and showed some preliminary results of the comparison of the data retrieved from the instruments on a rainy day. It is found that some detailed features of cloud and predipitation development can be detected by the CPOS instruments. Further work is on the way and more data will be presented at the conference.