Search
CSV
RISImpact of Changes to the Radiation Transfer Parameterizations Plus Cloud Optical. Properties in the ECMWF Model
Publisher: American Meteorological Society
Abstract: A new radiation package, shown to correct most of the systematic errors of the operational ECMWF radiation scheme, has been extensively tested in the ECMWF forecast model. Improvements in the clear-sky fluxes and radiative ...
On the Effects of the Temporal and Spatial Sampling of Radiation Fields on the ECMWF Forecasts and Analyses
Publisher: American Meteorological Society
Abstract: The author?s explore the implications of the temporal and spatial sampling of the radiation fields and tendencies upon the fields produced by the ECMWF system in operational-type forecasts, four-month seasonal integrations, ...
The Surface Downward Longwave Radiation in the ECMWF Forecast System
Publisher: American Meteorological Society
Abstract: The surface downward longwave radiation, computed by the European Centre for Medium-Range Weather Forecasts (ECMWF) forecast system used for the ECMWF 40-yr reanalysis, is compared with surface radiation measurements for ...
Evaluation of Model-generated Cloudiness: Satellite-observed and Model-generated Diurnal Variability of Brightness Temperature
Publisher: American Meteorological Society
Abstract: In an attempt to validate the ECMWF model?s cloudiness, model output has been processed to reproduce satellite measurements as closely as possible. Brightness temperatures in the longwave window channel of Meteosat are ...
Assessment of the ECMWF Model Cloudiness and Surface Radiation Fields at the ARM SGP Site
Publisher: American Meteorological Society
Abstract: The cloud and radiation fields produced by the operational ECMWF forecasts are assessed using observations from the Atmospheric Radiation Measurement Program (ARM) Southern Great Plains (SGP) site over the April?May 1999 ...
The Response of the ECMWF Model to Changes in the Cloud Overlap Assumption
Publisher: American Meteorological Society
Abstract: The role of the cloud overlap assumption (COA) in organizing the cloud distribution through its impact on the vertical heating/cooling rate profile by radiative and precipitative/evaporative processes is studied in a series ...
Skill of Direct Solar Radiation Predicted by the ECMWF Global Atmospheric Model over Australia
Publisher: American Meteorological Society
Abstract: rediction of direct solar radiation is key in sectors such as solar power and agriculture; for instance, it can enable more efficient production of energy from concentrating solar power plants. An assessment of the quality ...
The Overlapping of Cloud Layers in Shortwave Radiation Parameterizations
Publisher: American Meteorological Society
Abstract: Using the shortwave radiation scheme of Fouquart and Bonnel that accounts for scattering and absorption by gases and cloud particles, we study the effect of varying the assumption for the overlap of partially cloudy layers, ...
A Reduced Radiation Grid for the ECMWF Integrated Forecasting System
Publisher: American Meteorological Society
Abstract: A specific interface between the radiation transfer calculations and the rest of the ECMWF model was introduced in 2003, potentially providing substantial economy in computer time by reducing the spatial resolution at which ...
Aerosols for Concentrating Solar Electricity Production Forecasts: Requirement Quantification and ECMWF/MACC Aerosol Forecast Assessment
Publisher: American Meteorological Society
Abstract: tial for transferring a larger share of our energy supply toward renewable energy is a widely discussed goal in society, economics, environment, and climate-related programs. For a larger share of electricity to come from ...