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Including Atmospheric Layers in Vegetation and Urban Offline Surface Schemes
Publisher: American Meteorological Society
Abstract: A formulation to include prognostic atmospheric layers in offline surface schemes is derived from atmospheric equations. Whereas multilayer schemes developed previously need a complex coupling between atmospheric-model ...
Numerical Simulation of a Low-Level Wind Created by Complex Orography: A Cierzo Case Study
Publisher: American Meteorological Society
Abstract: Three-dimensional simulations of the IOP 10 of the Pyrénées Experiment are presented. In this case, the northerly synoptic flow forces two regional winds around the Pyrénées Mountain range: the cierzo in the Ebro Valley ...
Energetics of the 6000-yr BP Atmospheric Circulation in Boreal Summer, from Large-Scale to Monsoon Areas: A Study with Two Versions of the LMD AGCM
Publisher: American Meteorological Society
Abstract: The mechanisms of northern summer monsoon changes at 6 kyr BP and their dependency to model parameterizations is investigated using two versions of the atmospheric general circulation model developed by the Laboratoire de ...
Scaling the Daytime Urban Heat Island and Urban-Breeze Circulation
Publisher: American Meteorological Society
Abstract: The urban-breeze circulation is a mesoscale response of the atmospheric flow that is related to horizontal variations in temperature associated, for dry conditions, with gradients in sensible heat flux densities. This local ...
A Diagnostic for Evaluating the Representation of Turbulence in Atmospheric Models at the Kilometric Scale
Publisher: American Meteorological Society
Abstract: urbulence is well represented by atmospheric models at very fine grid sizes, from 10 to 100 m, for which turbulent movements are mainly resolved, and by atmospheric models with grid sizes greater than 2 km, for which those ...
Calculation of Air Temperatures above the Urban Canopy Layer from Measurements at a Rural Operational Weather Station
Publisher: American Meteorological Society
Abstract: rban canopy models (UCMs) are being used as urban-climate prediction tools for different applications including outdoor thermal comfort and building energy consumption. To take advantage of their low computational cost, ...
High-Resolution Simulation of Surface and Turbulent Fluxes during HAPEX-MOBILHY
Publisher: American Meteorological Society
Abstract: The newly developed nonhydrostatic model MESO-NH, in which the surface scheme Interactions Soil?Biosphere?Atmosphere has been incorporated, is used in this study to assess the impact of increasing the horizontal resolution ...
Implementation of an Urban Parameterization Scheme into the Regional Climate Model COSMO-CLM
Publisher: American Meteorological Society
Abstract: s the nonhydrostatic regional model of the Consortium for Small-Scale Modelling in Climate Mode (COSMO-CLM) is increasingly employed for studying the effects of urbanization on the environment, the authors extend its ...
Aerosol Impacts on the Diurnal Cycle of Marine Stratocumulus
Publisher: American Meteorological Society
Abstract: Recent large-eddy simulation (LES) studies of the impact of aerosol on the dynamics of nocturnal marine stratocumulus revealed that, depending on the large-scale forcings, an aerosol-induced increase of the droplet ...
Numerical and Experimental Investigation of the Neutral Atmospheric Surface Layer
Publisher: American Meteorological Society
Abstract: This study combines the experimental measurements with large-eddy simulation (LES) data of a neutral planetary boundary layer (PBL) documented by a 60-m tower instrumented with eight sonic anemometers, and a high-resolution ...