搜索结果: 1-15 共查到“大气科学 parameterization”相关记录23条 . 查询时间(0.046 秒)
Modeling the regional impact of ship emissions on NOx and ozone levels over the Eastern Atlantic and Western Europe using ship plume parameterization
ship emissions NOx ozone levels the Eastern Atlantic Western Europe ship plume parameterization
2010/8/16
In general, regional and global chemistry transport models apply instantaneous mixing of emissions into the model's finest resolved scale. In case of a concentrated source, this could result in errone...
A linear CO chemistry parameterization in a chemistry-transport model: evaluation and application to data assimilation
A linear CO chemistry parameterization a chemistry-transport model data assimilation
2010/8/16
This paper presents an evaluation of a new linear parameterization valid for the troposphere and the stratosphere, based on a first order approximation of the carbon monoxide (CO) continuity equation....
Heterogeneous freezing of droplets with immersed mineral dust particles – measurements and parameterization
droplets immersed mineral dust particles measurements parameterization
2010/8/12
During the measurement campaign FROST (FReezing Of duST), LACIS (Leipzig Aerosol Cloud Interaction Simulator) was used to investigate the immersion freezing behavior of size selected, coated and uncoa...
A review of the theoretical basis for bulk mass flux convective parameterization
the theoretical basis bulk mass flux convective parameterization
2010/8/12
Most parameterizations for precipitating convection in use today are bulk schemes, in which an ensemble of cumulus elements with different properties is modelled as a single, representative entraining...
Parameterization of subgrid plume dilution for use in large-scale atmospheric simulations
Parameterization subgrid plume dilution large-scale atmospheric simulations
2010/3/16
A new model of plume dynamics has been developed for use as a subgrid model of plume dilution in a large-scale atmospheric simulation. The model uses mean wind, shear, and diffusion parameters derived...
Parameterization of vertical diffusion and the atmospheric boundary layer height determination in the EMEP model
vertical diffusion atmospheric boundary layer height determination EMEP model
2010/2/1
This paper introduces two changes of the turbulence parameterization for the EMEP (European Monitoring and Evaluation Programme) Eulerian air pollution model: the replacement of the Blackadar in stabl...
Toward a general parameterization of N2O5 reactivity on aqueous particles: the competing effects of particle liquid water, nitrate and chloride
N2O5 reactivity aqueous particles particle liquid water nitrate chloride
2009/11/19
The heterogeneous reaction of N2O5 on mixed organic-inorganic aerosol particles was investigated using an entrained aerosol flow tube coupled to a custom-built chemical ionization mass spectrometer. L...
Regional modelling of tracer transport by tropical convection – Part 1: Sensitivity to convection parameterization
tracer transport tropical convection convection parameterization
2009/9/27
The general objective of this series of papers is to evaluate long duration limited area simulations with idealised tracers as a tool to assess tracer transport in chemistry-transport models (CTMs). I...
Parameterization of cloud droplet formation for global and regional models: including adsorption activation from insoluble CCN
cloud droplet formation global and regional models insoluble CCN
2009/5/7
Dust and black carbon aerosol have long been known to exert potentially important and diverse impacts on cloud droplet formation. Most studies to date focus on the soluble fraction of these particles,...
Application of the Spectral Structure Parameterization technique: retrieval of total water vapor columns from GOME
Spectral Structure Parameterization technique total water vapor columns GOME
2009/3/10
We use a recently proposed spectral sampling technique for measurements of atmospheric transmissions called the Spectral Structure Parameterization (SSP) in order to retrieve total water vapor columns...
Water activity in polyol/water systems: new UNIFAC parameterization
Water activity polyol/water systems UNIFAC parameterization
2009/2/11
Water activities of a series of polyol/water systems were measured with an AquaLab dew point water activity meter at 298K. The investigated polyols with carbon numbers from n=2-7 are all in liquid sta...
Parameterization of the nitric acid effect on CCN activation
nitric acid effect CCN activation HNO3 and HCl concentrations
2009/2/8
In this paper we present a parameterization of the nitric acid effect on cloud droplet formation. The new parameterization is intended to be used in large scale models in order to obtain regional and ...
CHEM2D-OPP: A new linearized gas-phase ozone photochemistry parameterization for high-altitude NWP and climate models
CHEM2D-OPP linearized gas-phase ozone photochemistry parameterization high-altitude NWP
2009/1/16
The new CHEM2D-Ozone Photochemistry Parameterization (CHEM2D-OPP) for high-altitude numerical weather prediction (NWP) systems and climate models specifies the net ozone photochemical tendency and its...
Some experimental constraints for spectral parameters used in the Warner and McIntyre gravity wave parameterization scheme
experimental constraints spectral parameters McIntyre gravity wave parameterization scheme
2009/1/15
In order to incorporate the effect of gravity waves (GWs) on the atmospheric circulation most global circulation models (GCMs) employ gravity wave parameterization schemes. To date, GW parameterizatio...
Ozonolysis of α-pinene: parameterization of secondary organic aerosol mass fraction
α-pinene secondary organic aerosol mass fraction
2008/12/15
Existing parameterizations tend to underpredict the α-pinene aerosol mass fraction (AMF) or yield by a factor of 2–5 at low organic aerosol concentrations (<5 µg m−3). A wide range of smog...