1991•Papers in Meteorology and GeophysicsOpen access
Measurements of Nitric Oxide and Ozone in the Troposphere from Mid-Latitudes to Equator.
Y. Kondo, Yasunobu Iwasaka, Akira Iwata, Toshihiro Ogawa, Yukio Sugimura, Yukio Makino
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Abstract
Mixing ratio of nitric oxide(NO)and ozone were measured on board an aircraft over the westem Pacific ocean between7and10th of March，1989．The latitude range covered was from350N to loS． NO mixing ratio at4．5km varied between10and45 PPtv at latitudes between32and150N and the average NO mixing ratio was about20 PPtv．ApeakinNOmixingratioreaching45PPtvwasencounterednear200Nduring both southbound and northbound flights． The average NO mixing ratio at latitudes between IO。N and the equator was about10PPtv． The latitudinal variation in the ozone mixing ratio was basically similar to that of NO，suggesting larger sources of NO and ozone at mid-latitudes than at lower latitudes．
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