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RISImpact of Horizontal Resolution on the Numerical Simulation of a Midlatitude Squall Line: Implicit versus Explicit Condensation
Publisher: American Meteorological Society
Abstract: The relative roles of implicit and explicit condensation schemes in the numerical representation of a squall line that occurred on 7?8 May 1995 over the southern Great Plains are examined in this study using Mesoscale ...
Tangent Linear Aspects of the Kain–Fritsch Moist Convective Parameterization Scheme
Publisher: American Meteorological Society
Abstract: Advanced operational four-dimensional variational data assimilation (4DVAR) schemes include a linearized version of moist convective parameterization and its adjoint. At the Meteorological Service of Canada, work is underway ...
High Horizontal and Vertical Resolution Limited-Area Model: Near-Surface and Wind Energy Forecast Applications
Publisher: American Meteorological Society
Abstract: s harvesting of wind energy grows, so does the need for improved forecasts from the surface to the top of wind turbines. To improve mesoscale forecasts of wind, temperature, and dewpoint temperature in this layer, two ...
A Numerical Study of the Along-Line Variability of a Frontal Squall Line during PRE-STORM
Publisher: American Meteorological Society
Abstract: Despite considerable progress in the understanding of two-dimensional structures of squall lines, little attention has been paid to the along-line variability of these convective systems. In this study, the roles of meso- ...
Forecasting of Surface Winds over Eastern Canada Using the Canadian Offline Land Surface Modeling System
Publisher: American Meteorological Society
Abstract: he capability of the Canadian land surface external modeling system known as the Global Environmental Multiscale Surface (GEM-SURF) system with respect to surface wind predictions is evaluated. Based on the Interactions ...
Simulation of Snow on Arctic Sea Ice Using a Coupled Snow–Ice Model
Publisher: American Meteorological Society
Abstract: The new Recherche Prévision Numérique (NEW-RPN) model, a coupled system including a multilayer snow thermal model (SNTHERM) and the sea ice model currently used in the Meteorological Service of Canada (MSC) operational ...
The Canadian Land Data Assimilation System (CaLDAS): Description and Synthetic Evaluation Study
Publisher: American Meteorological Society
Abstract: he Canadian Land Data Assimilation System (CaLDAS) has been developed at the Meteorological Research Division of Environment Canada (EC) to better represent the land surface initial states in environmental prediction and ...
Blowing Snow on Arctic Sea Ice: Results from an Improved Sea Ice–Snow–Blowing Snow Coupled System
Publisher: American Meteorological Society
Abstract: one-dimensional (1D) version of a blowing snow model, called PIEKTUK-D, has been incorporated into a snow?sea ice coupled system. Blowing snow results in sublimation of approximately 12 mm of snow water equivalent (SWE), ...
Numerical Prediction of the 10–11 June 1985 Squall Line with the Canadian Regional Finite-Element Model
Publisher: American Meteorological Society
Abstract: In an effort to improve operational forecasts of mesoscale convective systems (MCSs), a mesoscale version of the operational Canadian Regional Finite-Element (RFE) Model with a grid size of 25 km is used to predict an ...
Influence of Soil Moisture on Urban Microclimate and Surface-Layer Meteorology in Oklahoma City
Publisher: American Meteorological Society
Abstract: he influence of soil moisture on the surface-layer atmosphere is examined in this paper by analyzing the outputs of model simulations for different initial soil moisture configurations, with particular emphasis on urban ...