NOy partitioning and budget and its correlation with N2O in the Arctic vortex and in summer midlatitudes in 1997 -: art. no. 4280

被引：42

作者：

Wetzel, G ^{[1
]}

Oelhaf, H ^{[1
]}

Ruhnke, R ^{[1
]}

Friedl-Vallon, F ^{[1
]}

Kleinert, A ^{[1
]}

Kouker, W ^{[1
]}

Maucher, G ^{[1
]}

Reddmann, T ^{[1
]}

Seefeldner, M ^{[1
]}

Stowasser, M ^{[1
]}

Trieschmann, O ^{[1
]}

von Clarmann, T ^{[1
]}

Fischer, H ^{[1
]}

机构：

[1] Univ Karlsruhe, Forschungszentrum Karlsruhe, Inst Meteorol & Klimaforsch, D-76021 Karlsruhe, Germany

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES | 2002年 / 107卷 / D16期

关键词：

stratospheric ozone chemistry; nitrogen partitioning; denitrification; vortex remnants; IR limb sounding; balloon measurements;

D O I：

10.1029/2001JD000916

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

Vertical profiles of the most important species of nocturnal total reactive nitrogen (NOy=NO2+HNO3+ClONO2+2N(2)O(5)+HO2NO2) together with its source gas N2O were retrieved from infrared limb emission spectra measured by the Michelson Interferometer for Passive Atmospheric Sounding, Balloon-borne version (MIPAS-B) instrument inside the late winter arctic vortex from Kiruna (Sweden, 68degreesN) on 24 March 1997 and in summer midlatitudes from Gap (France, 44degreesN) on 2 July 1997. The measured data were compared to calculations performed with the three-dimensional chemistry transport model (CTM) Karlsruhe Simulation model of the Middle Atmosphere (KASIMA). The results show that in the late winter arctic vortex most of the available nitrogen and chlorine is in the form of HNO3 and ClONO2, respectively. An anomalous N2O-NOy correlation observed in March 1997 appears to be caused to a large extent by quasi-horizontal mixing of air masses across the vortex edge. However, near 20 km some denitrification of similar to1.5 to 2 ppbv NOy could be observed. The N2O profile measured in July 1997 indicates remnants of polar vortex air and is not reproduced by the CTM at the same location. However, the profile shapes of the individual compounds of the NOy family as well as the NOx/NOy ratio are reproduced fairly well by the model.

引用

页码：3 / 1

页数：10

共 62 条

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[Anonymous], [No title captured]

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