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Scaling laws of passive tracer dispersion in the turbulent surface layer
Scaling laws passive tracer dispersion the turbulent surface layer
2011/8/18
Abstract: Experimental results for passive tracer dispersion in the turbulent surface layer under stable conditions are presented. In this case, the dispersion of tracer particles is determined by the...
Simultaneous HONO measurements in and above a forest canopy: influence of turbulent exchange on mixing ratio differences
HONO measurements a forest canopy turbulent exchange ratio differences
2011/2/24
We have combined chemical and micrometeorological measurements to investigate the formation and distribution of HONO throughout a forest canopy. HONO was measured simultaneously at two heights, close ...
Turbulent exchange and segregation of HOx radicals and volatile organic compounds above a deciduous forest
HOx radicals volatile organic compounds a deciduous forest
2010/8/16
The eddy covariance method was applied for the first time to estimate fluxes of OH and HO2 together with fluxes of isoprene, the sum of methyl vinyl ketone (MVK) and methacrolein (MACR) and the sum of...
Large- and small-scale turbulent spectra in MHD and atmospheric flows
Large- and small-scale turbulent spectra MHD atmospheric flows
2009/11/9
In the present review we discuss certain studies of large- and small-scale turbulent spectra in MHD and atmospheric flows performed by S. S. Moiseev and his co-authors during the last years of his lif...
Diffusional and accretional growth of water drops in a rising adiabatic parcel: effects of the turbulent collision kernel
Diffusional and accretional growth water drops rising adiabatic parcel turbulent collision kernel
2009/5/7
A large set of rising adiabatic parcel simulations is executed to investigate the combined diffusional and accretional growth of cloud droplets in maritime and continental conditions, and to assess th...
Turbulent dispersion in cloud-topped boundary layers
Turbulent dispersion cloud-topped boundary layers
2009/3/13
Compared to dry boundary layers, dispersion in cloud-topped boundary layers has received less attention. In this LES based numerical study we investigate the dispersion of a passive tracer in the form...
Variability of the Lagrangian turbulent diffusion in the lower stratosphere
Lagrangian turbulent diffusion lower stratosphere nitrous oxide
2009/2/11
Ozone and nitrous oxide are measured at high spatial and temporal resolution by instruments flying on the ER-2 NASA research aircraft. Comparing the airborne transects to reconstructions by ensemble o...
On the parameterization of turbulent fluxes over the tropical Eastern Pacific
turbulent fluxes tropical Eastern Pacific
2008/12/1
We present estimates of turbulent fluxes of heat and momentum derived from low level (~30 m) aircraft measurements over the tropical Eastern Pacific and provide empirical relationships that are valid ...
Characterization of the 222Rn family turbulent transport in the convective atmospheric boundary layer
222Rn family turbulent transport convective atmospheric boundary layer
2008/12/1
The combined effect of turbulent transport and radioactive decay on the distribution of 222Rn and its progeny in convective atmospheric boundary layers (CBL) is investigated. Large eddy simulation is ...
Attenuation of concentration fluctuations of water vapor and other trace gases in turbulent tube flow
concentration fluctuations of water vapor trace gases turbulent tube flow
2008/11/24
Recent studies with closed-path eddy covariance (EC) systems have indicated that the attenuation of fluctuations of water vapor concentration is dependent upon ambient relative humidity, presumably du...
Turbulent vertical diffusivity in the sub-tropical stratosphere
Turbulent vertical diffusivity sub-tropical stratosphere
2008/10/29
Vertical (cross-isentropic) mixing is produced by small-scale turbulent processes which are still poorly understood and paramaterized in numerical models. In this work we provide estimates of local eq...
Uncertainties in Estimating Turbulent Fluxes to Melting Snow in a Mountain Clearing
snowmelt eddy correlation/covariance sensible heat flux-profile latent heat sublimation Rocky Mountains
2014/4/3
The turbulent fluxes of heat and water vapour were studied in a 7.5 ha clearing in Marmot Creek
Research Basin, located in the Kananaskis River Basin in the Rocky Mountains of Alberta,
Canada. A l...