Contribution of particulate nitrate to airborne measurements of total reactive nitrogen
Contribution of particulate nitrate to airborne measurements of total reactive nitrogen
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DOI:
10.1029/2004jd005502
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发表时间:
2005-08
影响因子:
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通讯作者:
Y. Miyazaki;Y. Kondo;N. Takegawa;R. Weber;M. Koike;K. Kita;M. Fukuda;Y. Ma;A. Clarke;V. Kapustin;F. Flocke;A. Weinheimer;M. Zondlo;F. Eisele;D. Blake;B. Liley
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文献类型:
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作者:
Y. Miyazaki;Y. Kondo;N. Takegawa;R. Weber;M. Koike;K. Kita;M. Fukuda;Y. Ma;A. Clarke;V. Kapustin;F. Flocke;A. Weinheimer;M. Zondlo;F. Eisele;D. Blake;B. Liley
[1] Simultaneous measurements of speciated, total reactive nitrogen (NOy) and particulate NO3 (particle diameter <1.3 mm) were made on board the NASA P-3B aircraft over the western Pacific in February–April 2001 during the Transport and Chemical Evolution over the Pacific (TRACE-P) experiment. Gas-phase and particulate NOy was measured using a gold tube catalytic converter. For the interpretation of particulate NOy, conversion efficiencies of particulate NH4NO3, KNO3, NaNO3, and Ca(NO3)2 were measured in the laboratory. Only NH4NO3 showed quantitative conversion, and its conversion efficiency was as high as that for HNO3 .N Oy measured on board the aircraft was found to be systematically higher by 10–30% than the sum of the individual NOy gas components ( P (NOy)i) at 0–4 km. Particulate NO3 concentrations measured by a particle-into-liquid