搜索结果: 1-13 共查到“大气化学 Flux”相关记录13条 . 查询时间(0.234 秒)
Total aerosol effect: radiative forcing or radiative flux perturbation?
radiative forcing radiative flux perturbation
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2010/8/12
Uncertainties in aerosol radiative forcings, especially those associated with clouds, contribute to a large extent to uncertainties in the total anthropogenic forcing. The interaction of aerosols with...
What can we learn from European continuous atmospheric CO2 measurements to quantify regional fluxes – Part 2: Sensitivity of flux accuracy to inverse setup
European continuous atmospheric CO2 measurements regional fluxes flux accuracy
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2010/8/12
An inverse model using atmospheric CO2 observations from a European network of stations to reconstruct daily CO2 fluxes and their uncertainties over Europe at 50 km resolution has been developed withi...
BVOC ecosystem flux measurements at a high latitude wetland site
BVOC ecosystem flux measurements high latitude wetland site
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2010/2/21
In this study, we present summertime concentrations and fluxes of biogenic volatile organic compounds (BVOCs) measured at a sub-arctic wetland in northern Sweden using a disjunct eddy-covariance (DEC)...
The effect of Arctic sea-ice extent on the absorbed（net）solar flux at the surface, based on ISCCP-D2 cloud data for 1983–2007
Arctic sea-ice absorbed solar flux ISCCP-D2 cloud data
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2010/2/1
We estimate the effect of the Arctic sea ice on the absorbed (net) solar flux using a radiative transfer model. Ice and cloud input data to the model come from satellite observations, processed by the...
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
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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. ...
Eddy covariance flux measurements of pollutant gases in urban Mexico City
Eddy covariance flux measurements pollutant gases urban Mexico City
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2009/10/9
Eddy covariance (EC) flux measurements of the atmosphere/surface exchange of gases over an urban area are a direct way to improve and evaluate emissions inventories, and, in turn, to better understand...
On inferring isoprene emission surface flux from atmospheric boundary layer concentration measurements
isoprene emission surface flux atmospheric boundary layer concentration measurements
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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...
Mixing ratios and eddy covariance flux measurements of volatile organic compounds from an urban canopy
Mixing ratios eddy covariance flux measurements volatile organic urban canopy
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2009/3/31
Mixing ratios and fluxes of six selected volatile organic compounds (VOCs) were measured above the city of Manchester (UK) during the summer of 2006. A proton transfer reaction-mass spectrometer was u...
The impact of diurnal variability in sea surface temperature on the central Atlantic air-sea CO2 flux
sea surface temperature central Atlantic air-sea CO2 flux
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2009/3/12
The effect of diurnal variations in sea surface temperature (SST) on the air-sea flux of CO2 over the central Atlantic ocean and Mediterranean Sea (60 S–60 N, 60 W–45 E) is evaluated for 2005–2006. We...
The flux of carbonyl sulfide and carbon disulfide between the atmosphere and a spruce forest
flux of carbonyl sulfide carbon disulfide atmosphere spruce forest
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2009/3/12
Turbulent fluxes of carbonyl sulfide (COS) and carbon disulfide (CS2) were measured over a spruce forest in Central Germany using the relaxed eddy accumulation (REA) technique. A REA sampler was devel...
A new actinic flux 4p-spectroradiometer：instrument design and application to clear sky and broken cloud conditions
actinic flux 4p-spectroradiometer clear sky broken cloud conditions
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2009/3/11
A new 4p-spectroradiometer was developed for measuring actinic flux especially under cloudy conditions based on a fixed grating imaging spectrograph and a CCD-detector leading to a simultaneous measur...
Eddy covariance flux measurements of biogenic VOCs during ECHO 2003 using proton transfer reaction mass spectrometry
Eddy covariance flux measurements biogenic VOCs proton transfer reaction mass spectrometry
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2009/2/6
Within the framework of the AFO 2000 project ECHO, two PTR-MS instruments were operated in combination with sonic anemometers to determine biogenic VOC fluxes from a mixed deciduous forest site in Nor...
Predicting terrestrial 222Rn flux using gamma dose rate as a proxy
222Rn flux gamma dose rate proxy
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2008/12/11
222Rn is commonly used as a natural tracer for validating climate models. To improve such models a better source term for 222Rn than currently used is necessary. The aim of this work is to establish a...