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Nitrogen oxides in the boundary layer and free troposphere at the Mt. Bachelor Observatory
Nitrogen oxides the boundary layer free troposphere the Mt. Bachelor Observatory
2010/8/16
Nitrogen oxide (NOx=NO+NO2) observations were made at the Mt. Bachelor Observatory in central Oregon, USA (MBO; 2.73 km above sea level) during one autumn and three springtime (15 April–20 May) period...
Particle formation in the Arctic free troposphere during the ASTAR 2004 campaign: a case study on the influence of vertical motion on the binary homogeneous nucleation of H2SO4/H2O
Arctic free troposphere ASTAR 2004 campaign binary homogeneous nucleation of H2SO4/H2O
2010/2/21
During the ASTAR (Arctic Study of Tropospheric Aerosol and Radiation) campaign nucleation mode particles (4 to 13 nm) were quite frequently observed at altitudes below 4000 m. However, in the upper fr...
Partitioning of reactive nitrogen（NOy）and dependence on meteorological conditions in the lower free troposphere
reactive nitrogen NOy lower free troposphere
2009/3/10
Results of continuous nitrogen oxide (NO), nitrogen dioxide (NO2), peroxyacetyl nitrate (PAN) and total reactive nitrogen (NOy) measurements along with seasonal field campaigns of nitric acid (HNO3) a...
The role of halogens in both the marine boundary layer and the stratosphere has long been recognized, while their role in the free troposphere is often not considered in global chemical models. Howeve...
Optical and physical properties of aerosols in the boundary layer and free troposphere over the Amazon Basin during the biomass burning season
Optical physical properties boundary layer free troposphere Amazon Basin biomass burning season
2009/1/13
As part of the Large Scale Biosphere-Atmosphere Experiment in Amazonia – Smoke, Aerosols, Clouds, Rainfall and Climate (LBA-SMOCC) campaign, detailed surface and airborne aerosol measurements were per...
Seasonal variability of measured ozone production efficiencies in the lower free troposphere of Central Europe
measured ozone lower free troposphere Central Europe
2008/11/27
In this study we present the seasonal variability of ozone production efficiencies (EN), defined as the net number of ozone molecules produced per molecule of nitrogen oxides (nitrogen oxide (NO) + ni...
The effects of airmass history on new particle formation in the free troposphere: case studies
airmass history particle formation free troposphere
2008/11/11
Recent aircraft studies showed that new particle formation (NPF) is very active in the free troposphere. And, these observations lead to a new question: when does NPF not occur? Here, we provide case ...