Sentences with phrase «atmospheric model grid»
The approach uses the PETIT atmospheric model grid to calculate spectral indices.
http://eos-nexus.org/ Not exact matches
The global climate models assessed by the Intergovernmental Panel on Climate Change (IPCC), which are used to project global and regional climate change, are coarse resolution models based on a roughly 100 - kilometer or 62 - mile grid, to simulate ocean and atmospheric dynamics.
Using a computer model that fused air pollution and atmospheric chemistry data, they estimated what annual average levels of ozone (a key smog ingredient) and fine particulates smaller than 2.5 microns (PM2.5) were in 2010 within 100 - km - by -100-km grid squares across the world.
When GCMs are used to model atmospheric conditions and spatial grid size is reduced is there a scale at which chaotic conditions prevail and make modeling difficult in the same way that weather is harder to model than climate?
Starting with Arakawa and Lamb's second - order C - grid scheme, this paper describes the modifications made to the dynamics to create a C - grid atmospheric model with a variable number of cells for each vertical column.
The resolution of the atmospheric model is set to TL159L91 (IFS version 41r2), which corresponds to a 1.125 ° horizontal grid (125 km) with 91 vertical levels going up to 0.1 hPa.
Emissions of other short - lived gases (CO, NOx, NMVOCs, and CH4) also needed to be mapped to a global grid for use in atmospheric chemistry models.
Our lab is actively developing global atmospheric climate models with roughly 50 and 25 km grid spacing (even finer models are being run very experimentally), and there are a number of related efforts around the world.
The eastward component of the wind in the lower troposphere (850 hPa) simulated by an atmospheric model with roughly 50 km horizontal grid.
To characterize observational uncertainty, four atmospheric reanalyses are used as climate model surrogates and two gridded observational data sets are used as downscaling target data.
Principal changes in the physics in the current version of the model are use of a step - mountain C - grid atmospheric vertical coordinate [109], addition of a drag in the grid - scale momentum equation in both atmosphere and ocean based on subgrid topography variations, and inclusion of realistic ocean tides based on exact positioning of the Moon and Sun.
Step - mountain technique applied to an atmospheric C - grid model, or how to improve precipitation near mountains
Russell, G.L., 2007: Step - mountain technique applied to an atmospheric C - grid model, or how to improve precipitation near mountains.
The technique was originally developed to examine the storm tracks produced by atmospheric general circulation models (GCMs), but it is directly applicable to other gridded SLP datasets, such as those derived in weather forecasts or reanalysis projects.