• Title/Summary/Keyword: Residual Eulerian circulation

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Estimation of Vertical Profiles and Total Amount of Ozone Using Two-Dimensional Photochemical Transfer Model During the Period of 1995-1996 at Pohang (2차원 광화학수송모델을 이용한 포항지역의 1995-1996년 기간동안 오존의 연직 프로파일 및 전량 추정)

  • Moon, Yun-Seob
    • Journal of Korean Society for Atmospheric Environment
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    • v.22 no.3
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    • pp.271-285
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    • 2006
  • A two-dimensional photochemical transport model (2D PTM) is simulated to describe the transport and chemical reaction of ozone related to aerosols in the troposphere and stratosphere. The vertical profiles and total amounts of ozone, which are advected by both residual Eulerian circulation and the adiabatic circulation under certain circumstance, have been compared with the observation data such as ozonesondes, Brewer spectrometer, the Upper Atmosphere Research Satellite (UARS), and the Total Ozone Mapping Spectrophotometer (TOMS). As a result, we find that the observed distribution of ozone Is adequately reproduced in the model at middle and high latitude in the Northern Hemisphere as well as at Phang ($36^{\circ}\;02'N,\;129^{\circ}\;23'E$) in South Korea. In particular, the 2D PTM is well simulated in the ozone decrease due to the Pinatubo volcanic eruption in 1991. However, ozone mixing ratio are more underestimated than those of UARS and ozonesondes, because are very sensitive to the latitude of transport across the tropopause associated with both Rummukainen errors and off-line model. Relative mean bias errors and relative root mean square errors of ozone calculations using the 2D PTM are shown within${\pm}10%$, respectively.