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Aerial Measurement of Radioxenon Concentration off the West Coast of Vancouver Island following the Fukushima Reactor Accident
Fukushima, reactor accident, Xe-133, Xenon, radioxenon,nuclear reactor, airborne, aerial, Monte Carlo, EGSnrc, plume
2011/9/14
In response to the Fukushima nuclear reactor accident, on March 20th, 2011,Natural Resources Canada conducted aerial radiation surveys over water just off of the west coast of Vancouver Island. Dose-r...
Tracer concentration profiles measured in central London as part of the REPARTEE campaign
Tracer concentration central London the REPARTEE campaign
2011/1/19
There have been relatively few tracer experiments carried out that have looked at vertical plume spread in urban areas. In this paper we present results from two tracer (cyclic perfluorocarbon) experi...
Measured and modelled cloud condensation nuclei number concentration at the high alpine site Jungfraujoch
cloud condensation nuclei number concentration the high alpine site Jungfraujoch
2010/9/1
Atmospheric aerosol particles are able to act as cloud condensation nuclei (CCN) and are therefore important for the climate and the hydrological cycle, but their properties are not fully understood. ...
The importance of aerosol mixing state and size-resolved composition on CCN concentration and the variation of the importance with atmospheric aging of aerosols
aerosol mixing state size-resolved composition CCN concentration atmospheric aerosols
2010/8/16
Aerosol microphysics, chemical composition, and CCN concentrations were measured at the T0 urban supersite in Mexico City during Megacity Initiative: Local and Global Research Observations (MILAGRO) i...
The sensitivity of stratocumulus-capped mixed layers to cloud droplet concentration: do LES and mixed-layer models agree?
stratocumulus-capped mixed layers droplet concentration LES and mixed-layer models
2010/8/12
The sensitivity of a stratocumulus-capped mixed layer to a change in cloud droplet concentration is evaluated with a large-eddy simulation (LES) and a mixed layer model (MLM). The strength of the seco...
Technical Note: A new coupled system for global-to-regional downscaling of CO2 concentration estimation
A new coupled system global-to-regional CO2 concentration estimation
2010/8/12
We introduce a global-to-regional nesting scheme for atmospheric transport models used in simulating concentrations of green house gases from globally distributed surface fluxes. The coupled system of...
Peroxyacetic acid in urban and rural atmosphere: concentration, feedback on PAN-NOx cycle and implication on radical chemistry
Peroxyacetic acid rural atmosphere PAN-NOx cycle radical chemistry
2010/2/1
Peroxyacetic acid (PAA) is one of the most important atmospheric organic peroxides, which have received increasing attention for their potential contribution to the oxidation capacity of the troposphe...
Constraining the concentration of the hydroxyl radical in a stratocumulus-topped marine boundary layer from sea-to-air eddy covariance flux measurements of dimethylsulfide
hydroxyl radical stratocumulus-topped marine boundary layer sea-to-air eddy covariance flux measurements
2009/12/31
The hydroxyl radical (OH) is an important oxidant in the troposphere due to its high reactivity and relative abundance. Measuring the concentration of OH in situ, however, is technically challenging. ...
Impact of Chinese anthropogenic emissions on submicrometer aerosol concentration at Mt. Tateyama, Japan
Chinese anthropogenic emissions submicrometer aerosol concentration Mt. Tateyama Japan
2009/12/3
Rapid Asian economic development might engender secondary impacts of atmospheric aerosol particles over the western Pacific after conversion of gaseous pollutants such as SO2. To elucidate changes in ...
Ecosystem effects of CO2 concentration：evidence from past climates
Ecosystem effects past climates CO2 concentration
2009/12/3
Atmospheric CO2 concentration has varied from minima of 170–200 ppm in glacials to maxima of 280–300 ppm in the recent interglacials. Photosynthesis by C3 plants is highly sensitive to CO2 concentrat...
VOC measurements within a boreal forest during spring 2005: on the occurrence of elevated monoterpene concentrations during night time intense particle concentration events
VOC measurements boreal forest monoterpene concentrations
2009/11/19
In this study we present measurements of selected trace gases and aerosols made in a boreal forest during the BACCI-QUEST IV intensive field campaign in Hyytiälä, Finland in April 2005. Spri...
On inferring isoprene emission surface flux from atmospheric boundary layer concentration measurements
isoprene emission surface flux atmospheric boundary layer concentration measurements
2009/6/16
We examine the dependence of the inferred isoprene surface emission flux from atmospheric concentration on the diurnal variability of the convective boundary layer (CBL). A series of systematic numeri...
Long-term behavior of the concentration of the minor constituents in the mesosphere – a model study
Long-term behavior minor constituents mesosphere
2009/5/6
We investigate the influence the rising concentrations of methane, nitrous oxide and carbon dioxide which have occurred since the pre-industrial era, have had on the chemistry of the mesosphere. For t...
Correlation between cloud condensation nuclei concentration and aerosol optical thickness in remote and polluted regions
cloud condensation nuclei concentration aerosol optical thickness polluted regions
2009/3/12
A large number of published and unpublished measurements of cloud condensation nuclei (CCN) concentrations and aerosol optical thickness (AOT) measurements have been analyzed. AOT measurements were ob...
The global mean OH concentration ([OH]GM) has been used as an indicator of the atmospheric oxidizing efficiency and its changes over time. It is also used for evaluating the performance of atmospheric...