搜索结果: 1-14 共查到“大气科学 the free troposphere”相关记录14条 . 查询时间(0.119 秒)
Characterization of particle cloud droplet activity and composition in the free troposphere and the boundary layer during INTEX-B
particle cloud droplet activity the free troposphere the boundary layer INTEX-B
2010/8/16
Measurements of cloud condensation nuclei (CCN), aerosol size distributions, and submicron aerosol composition were made as part of the Intercontinental Chemical Transport Experiment Phase B (INTEX-B)...
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...
Atmospheric nanoparticle observations in the low free troposphere during upward orographic flows at Izaña Mountain Observatory
Atmospheric nanoparticle low free troposphere upward orographic flows Izañ a Mountain Observatory
2009/9/11
This study investigates the processes and conditions favouring the formation of nanoparticles (diameter<10 nm) which are frequently observed on high mountains reaching the low free troposphere. This w...
Peroxy radicals in the summer free troposphere: seasonality and potential for heterogeneous loss
Peroxy radicals summer free troposphere heterogeneous loss
2009/3/31
The sum of peroxy radicals (HO2+ΣiRiO2) and supporting trace gases were measured on the Jungfraujoch (3580 m a.s.l.) during the late summer of 2005. The period was marked by extended times of heavy sn...
Seasonal variation of aerosol size distributions in the free troposphere and residual layer at the puy de Dôme station, France
Seasonal variation aerosol size distributions free troposphere residual layer puy de Dô me station
2009/3/13
Particle number concentration and size distribution are important variables needed to constrain the role of atmospheric particles in the Earth radiation budget, both directly and indirectly through CC...
A model study of ozone in the eastern Mediterranean free troposphere during MINOS
ozone eastern Mediterranean free troposphere MINOS
2009/3/11
A coupled tropospheric chemistry-climate model is used to analyze tropospheric ozone distributions observed during the MINOS campaign in the eastern Mediterranean region (August, 2001). Modeled ozone ...
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...
Quantification of topographic venting of boundary layer air to the free troposphere
topographic venting boundary layer air free troposphere
2009/2/24
Net vertical air mass export by thermally driven flows from the atmospheric boundary layer (ABL) to the free troposphere (FT) above deep Alpine valleys was investigated. The vertical export of polluta...
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...
Perturbation of the European free troposphere aerosol by North American forest fire plumes during the ICARTT-ITOP experiment in summer 2004
European free troposphere aerosol North American forest fire ICARTT-ITOP
2008/12/22
During the ICARTT-ITOP Experiment in summer 2004 plumes from large wildfires in North America were transported to Central Europe at 3–8 km altitude above sea level (a.s.l.). These plumes were studied...
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 ...