滋賀県周辺での光化学オキシダントの輸送過程に関する気象学的解析

書誌事項

タイトル別名
  • Meteorological Analysis for the Transport Processes of Photochemical Oxidant Around Shiga Prefecture
  • シガケン シュウヘン デ ノ コウカガク オキシダント ノ ユソウ カテイ ニ カンスル キショウガクテキ カイセキ

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抄録

Causes of high photochemical oxidant at Nagahama city, located in the O-mi basin, were examined by using surface meteorological data from the 1992-2001 warm seasons. Long-range transportation of photochemical oxidants from Osaka, Kyoto and Fukui prefecture was not detected in cases where the weather was favorable. There was a possibility of transportation from Gifu prefecture by southeasterly winds associated with migrating high pressure systems and following extra-tropical cyclones. Under conditions where land-breezes are prevalent, Hikone will experience high concentrations of nitrogen oxide during the night and early morning; on such occations there is an increase in the afternoon of photochemical oxidants in Nagahama city. Possible mechanisms of short-range transportation of air pollution affected by the land-lake breeze circulation around the Lake Biwa were discusses.

収録刊行物

  • 大気環境学会誌

    大気環境学会誌 41 (4), 183-195, 2006

    公益社団法人 大気環境学会

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