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Scientists create world's most detailed tornado simulations（图）
Scientists world detailed tornado simulations
2020/8/27
At their most extreme, supercell thunderstorms -- those with persistent rotating updrafts -- can spawn tornadoes, causing widespread devastation.How do tornadoes form? What ingredients do they require...
Automated tracking of shallow cumulus clouds in large domain, long duration large eddy simulations
shallow cumulus clouds large domain
2014/12/12
This paper presents a method for feature tracking of fields of shallow cumulus convection in large eddy simulations (LES) by connecting the projected cloud cover in
space and time, and by accou...
An analysis of long-term regional-scale ozone simulations over the Northeastern United States: variability and trends
long-term regional-scale ozone the Northeastern United States variability and trends
2011/2/24
This study presents the results from two sets of 18-year air quality simulations over the Northeastern US performed with a regional photochemical modeling system. These two simulations utilize differe...
Glycine in aerosol water droplets: a critical assessment of Köhler theory by predicting surface tension from molecular dynamics simulations
Glycine aerosol water Kö hler theory surface tension molecular dynamics simulations
2011/1/20
Aerosol particles in the atmosphere are important participants in the formation of cloud droplets and have significant impact on cloud albedo and global climate. According to the Köhler theory wh...
Decadal regional air quality simulations over Europe in present climate: near surface ozone sensitivity to external meteorological forcing
Decadal regional air quality Europe surface ozone external meteorological forcing
2010/12/28
Regional climate-air quality decadal simulations over Europe were carried out with the RegCM3/CAMx modeling system for the time slice 1991–2000, in order to study the impact of different meteorologica...
Coarse, intermediate and high resolution numerical simulations of the transition of a tropical wave critical layer to a tropical storm
resolution numerical the transition of a tropical wave critical layer a tropical storm
2010/11/30
Recent work has hypothesized that tropical cyclones in the deep Atlantic and eastern Pacific basins develop from within the cyclonic Kelvin cat's eye of a tropical easterly wave critical layer located...
Constraints on interactions between aerosols and clouds on a global scale from a combination of MODIS-CERES satellite data and climate simulations
aerosols clouds a global scale MODIS-CERES satellite data climate simulations
2010/10/21
Satellite-based cloud top effective radius retrieved by the CERES Science Team were combined with simulated aerosol concentrations from CCCma CanAM4 to examine relationships between aerosol and cloud ...
Combining visible and infrared radiometry and lidar data to test simulations in clear and ice cloud conditions
visible and infrared radiometry lidar data clear and ice cloud conditions
2010/8/16
Measurements taken during the 2003 Pacific THORPEX Observing System Test (P-TOST) by the MODIS Airborne Simulator (MAS), the Scanning High-resolution Interferometer Sounder (S-HIS) and the Cloud Physi...
The validity of the kinetic collection equation revisited – Part 2: Simulations for the hydrodynamic kernel
the kinetic collection equation the hydrodynamic kernel
2010/8/16
The kinetic collection equation (KCE) has been widely used to describe the evolution of the average droplet spectrum due to the collection process that leads to the development of precipitation in war...
A comparison of ship and satellite measurements of cloud properties with global climate model simulations in the southeast Pacific stratus deck
ship and satellite measurements cloud properties global climate model simulations the southeast Pacific stratus deck
2010/8/16
Here, liquid water path (LWP), cloud fraction, cloud top height, and cloud base height retrieved by a suite of A-train satellite instruments (the CPR aboard CloudSat, CALIOP aboard CALIPSO, and MODIS ...
Impact of Mexico City emissions on regional air quality from MOZART-4 simulations
Mexico City emissions regional air quality MOZART-4 simulations
2010/8/16
An extensive set of measurements was made in and around Mexico City as part of the MILAGRO (Megacity Initiative: Local and Global Research Observations) experiments in March 2006. Simulations with the...
Co-located column and in situ measurements of CO2 in the tropics compared with model simulations
Co-located column in situ measurements the tropics model simulations
2010/8/13
The first ground-based remote sensing measurements of the column averaged volume mixing ratio of CO2 (XCO2) in tropical South America have been obtained at Paramaribo, Suriname (5.8° N, 55.2° W). The ...
An Overview of Surface Conditions in Numerical Simulations of Dust Devils and the Consequent Near-surface Air Flow Fields
Dust devil Convection Large eddy simulation (LES) Vortices Surface friction
2016/3/29
Dust devils are generally attributed to the near-surface conditions, usually the composite actions of the surface
parameters, such as heat flux, wind shear and surface friction. Dust devil scale (DD-...
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...
Numerical simulations of contrail-to-cirrus transition – Part 2: Impact of initial ice crystal number, radiation, stratification, secondary nucleation and layer depth
contrail-to-cirrus transition initial ice crystal number secondary nucleation layer depth
2010/2/21
Simulations of contrail-to-cirrus transition were performed with an LES model. In Part 1 the impact of relative humidity, temperature and vertical wind shear was explored in a detailed parametric stud...