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RISAssimilation of Screen-Level Variables in ECMWF’s Integrated Forecast System: A Study on the Impact on the Forecast Quality and Analyzed Soil Moisture
Publisher: American Meteorological Society
Abstract: In many operational numerical weather prediction applications, the soil moisture analysis is based on the modeled first-guess and screen-level variables; that is, 2-m temperature and 2-m relative humidity. A set of two ...
The European Summer of 2003: Sensitivity to Soil Water Initial Conditions
Publisher: American Meteorological Society
Abstract: The European summer of 2003 is used as a case study to analyze the land surface role in augmenting the local temperature anomalies. Using the European Centre for Medium-Range Weather Forecasts (ECMWF) analysis and the 40-yr ...
Hydrological Budgets and Surface Energy Balance of Seven Subbasins of the Mackenzie River from the ECMWF Model
Publisher: American Meteorological Society
Abstract: The liquid and frozen hydrological budgets and the surface energy budget from seven subbasins of the Mackenzie River are analyzed using hourly integrals from the operational European Centre for Medium-Range Forecasts model ...
Clear-Sky Window Channel Radiances: A Comparison between Observations and the ECMWF Model
Publisher: American Meteorological Society
Abstract: A comparison of clear-sky radiances of the Meteosat window channel with the European Centre for Medium-Range Weather Forecasts (ECMWF) model results is presented, aiming to assess both the model's performance and the quality ...
Ocean Waves and the Atmospheric Climate
Publisher: American Meteorological Society
Abstract: Ocean waves are generated by wind and, as a consequence, there is a considerable transfer of momentum from atmosphere to ocean. This momentum transfer depends, however, on the stage of development of the ocean waves. Ocean ...
Surface Energy and Water Balance for the Arkansas–Red River Basin from the ECMWF Reanalysis
Publisher: American Meteorological Society
Abstract: Average surface energy and water budgets, subsurface variables, and atmospheric profiles were computed online with an hourly timescale from the ECMWF reanalysis for five subbasins of the Mississippi River from 1985?93. The ...
ECMWF's Global Snow Analysis: Assessment and Revision Based on Satellite Observations
Publisher: American Meteorological Society
Abstract: Snow water equivalent and snow extent are key parameters for the earth's energy and water budget. In this study, the current operational snow-depth analysis (2D spatial Cressman interpolation) at the European Centre for ...
An Improved Land Surface Parameterization Scheme in the ECMWF Model and Its Validation
Publisher: American Meteorological Society
Abstract: A new version of the ECMWF land surface parameterization scheme is described. It has four prognostic layers in the soil for temperature and soil moisture, with a free drainage and a zero heat flux condition at the bottom ...
Evaluation of the ERA-40 Surface Water Budget and Surface Temperature for the Mackenzie River Basin
Publisher: American Meteorological Society
Abstract: The systematic biases in temperature and precipitation, and the surface water budget of European Centre for Medium-Range Weather Forecasts (ECMWF) 40-yr reanalysis (ERA-40) for the Mackenzie River basin are assessed by ...
Analysis of Soil Moisture Changes in Europe during a Single Growing Season in a New ECMWF Soil Moisture Assimilation System
Publisher: American Meteorological Society
Abstract: This study aims at stimulating the development of soil moisture data assimilation systems in a direction where they can provide both the necessary control of slow drift in operational NWP applications and support the ...