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Stochastic resonance in a nonlinear model of a rotating,stratified shear flow,with a simple stochastic inertia-gravity wave parameterization
Stochastic resonance nonlinear model shear flow stochastic inertia-gravity wave parameterization
2009/11/11
We report on a numerical study of the impact of short, fast inertia-gravity waves on the large-scale, slowly-evolving flow with which they co-exist. A nonlinear quasi-geostrophic numerical model of a ...
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...
A parameterization of momentum roughness length and displacement height for a wide range ofcanopy densities
momentum roughness length canopy densities
2009/6/8
Values of the momentum roughness length, z0, and displacement height, d, derived from wind profiles and momentum flux measurements, are selected from the literature for a variety of sparse canopies. T...
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...
Parameterization of Air-Sea Interface Fluxes of Sensible Heat and Moisture by the Bulk Aerodynamic Formulas
Air-Sea Interface Fluxes Sensible Heat Bulk Aerodynamic Formulas
2009/3/7
The parameterizations of the sensible heat and moisture fluxes by the bulk aerodynamic formulas are determined from a compilation of existing data, together with some new results. The data set compris...
Parameterization of Turbulent Transport in the Top Meter of the Ocean
Turbulent Transport Top Meter of the Ocean
2009/3/7
A hypothesis of hydrodynamic similarity is proposed in respect to both the atmospheric and oceanic boundary layers just above and below their interface. Both layers are combined through an ident...
Parameterization of the Moisture and Heat Transfer Process over the Ocean under Whitecap Sea States
Heat Transfer Process Whitecap Sea States
2009/3/7
The mechanics of evaporation from the ocean under whitecap sea states was analysed by taking into account the water droplets produced by sea sprays and popping of entrained air bubbles. The theory pro...
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 Vertical Mixing in Numerical Models of Tropical Oceans
Vertical Mixing Numerical Models Tropical Oceans
2009/2/10
Measurements indicate that mixing processes are intense in the surface layers of the ocean but weak below the thermocline, except for the region below the core of the Equatorial Undercurrent where ver...
On the Parameterization of Geostrophic Eddies in the Ocean
Parameterization Geostrophic Eddies Ocean
2009/2/9
An attempt is made to incorporate into a two-layer, zonally averaged, channel ocean model the important transfers achieved by a geostrophic eddy field, using gross parameterizations rather than resolv...
On the Parameterization of Diapycnal Fluxes due to Double-Diffusive Intrusions
Diapycnal Fluxes Double-Diffusive Intrusions
2009/2/8
An attempt is made to Parameterized the large-Scale average diapycnal (cross-isopycnal) mixing that presumably occurs in the thermohaline fronts that develop when large-scale epipycnal (along-isopycna...
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...