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자료유형
학술저널
저자정보
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한국기상학회 Asia-Pacific Journal of Atmospheric Sciences 한국기상학회지 제40권 제2호
발행연도
2004.4
수록면
217 - 228 (12page)

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The ozone lidar(model: StraZon3070), which is operating in Korea Global Atmosphere Watch Observatory (WMO/GAW station No. 47132, 36°31'N, 126°10'E, sea level height 45.7 m), is an equipment for the monitoring of ozone number density, vertical distribution and variation in stratospheric ozone. This study examined intercomparison results of the vertical profiles from 15 to 30㎞ of stratospheric ozone between Lidar and Ozone-sonde, and was introduced the method of equipment stabilization and improvement of analyzing ability for ozone LIDAR by a differential absorption method using eximer laser which was developed firstly in Korea. This technique two laser wavelengths which are chosen so that one coincides with a region of high absorption, specific to the species being measured, and the other is turned into the wings this feature to a wavelength with much lower absorption. The difference in the absorption cross sections at these on and off-line wavelengths is called the differential absorption cross section and magnitude of this parameter has a direct bearing on the sensitivity of the DIAL method. The ozone number density is calculated from the DIAL equation. Further confidence in the quality of the lidar and ozone concentration profiles is provided by comparison with ozonesonde measurement. Direct sampling with ozonesondes was made at Pohang(GO3OS staion No. 332, 36°02'N, 129°23'E) in Korea. Electrochemical concentration cells(ECC) were used for these sounding. An intercomparison was carried out at Anmyeon-do and Pohang form Feb. 2002 to Feb. 2003. The ozone profiles obtained in an altitude range of 15~30 km are in good agreement with those measured by ozonesondes. And, according to the results during the period from January in 2002 to February in 2003(12 months) with cloud free condition and night, the ozone number densities in stratosphere are evenly distributed with no differences seasonally (around 2.4E+12 ㎝?³). However, the trend of vertical distribution and the maximum height of ozone number density are different season by season.

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Abstract
1. 서론
2. 오존의 수직구조 측정 이론
3. 측정기기 및 측정방법
4. 측정결과
5. 요약 및 결론
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