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RISCloud Interactions and Merging on Day 261 of GATE
Publisher: American Meteorological Society
Abstract: Cloud interactions and merging process in pairs of moderate-sized convective cells am studied using radar data with 5 min resolution from day 261 of GATE, in connection with a three-dimensional cloud model. The radar data ...
Diabatic Initialization of the Canadian Regional Finite-Element (RFE) Model Using Satellite Data. Part II: Sensitivity to Humidity Enhancement, Latent-Heating Profile and Rain Rates
Publisher: American Meteorological Society
Abstract: A frontal development observed during the CASP (Canadian Atlantic Storm Project) project is used to investigate the dependence of the spinup time of the divergent circulation on (i) the initial humidity held, (ii) the ...
Validation of the Upper Tropospheric Relative Humidity Determined from METEOSAT Data
Publisher: American Meteorological Society
Abstract: The purpose of this note is to ?validate? the upper tropospheric humidity (UTH) operationally extracted from the 6.3 ?m channel data of METEOSAT. The validation is carded out by comparing the satellite data with observed ...
Estimation of the Upper Tropospheric Relative Humidity Field from METFOSAT Water Vapor Image Data
Publisher: American Meteorological Society
Abstract: A retrieval method is described for estimating a mean column value of the upper tropospheric relative humidity (UTH) from radiance measurements in the 6.3 ?m channel of the geostationary satellite METEOSAT. The physical ...
Comparisons of Results from a Three-Dimensional Cloud Model with Statistics of Radar Echoes on Day 261 of GATE
Publisher: American Meteorological Society
Abstract: An analysis of 5 min resolution Quadra data on day 261 of GATE, (0953?1451 GMT) is made to yield statistics of maximum area, echo top, lifetime and maximum reflectivity factor in medium-sized convective cells. The results, ...
Large-Scale Diurnal Variations of Tropical Cold Cloudiness Based on a Simple Cloud Indexing Method
Publisher: American Meteorological Society
Abstract: Diurnal variations of cold cloudiness during a 2-year period (October 1985?September 1987) over the tropical arm covered by Meteosat (from 23°N to 23°S and from 60°E to 60°W) are studied using a simple precipitation index ...
Estimation of Rainfall in Burkina Faso Using the ESOC Precipitation Index
Publisher: American Meteorological Society
Abstract: Rainfall is estimated in Burkina Faso for a full year using the ESOC precipitation index (EPI), a statistical cloud indexing method based on satellite data from METEOSAT. The EPI is converted into rainfall with the linear ...
Determination of Rainfall with the ESOC Precipitation Index
Publisher: American Meteorological Society
Abstract: A validation of the ESOC (European Space 0Perations Centre) Precipitation Index (EPI) is carried out by comparing satellite data with observed rainfall in five African countries to determine the ability of estimating ...
Diabatic initialization of the Canadian Regional Finite-Element (RFE) Model Using Satellite Data. Part I: Methodology and Application to a Winter Storm
Publisher: American Meteorological Society
Abstract: The usefulness of numerical weather prediction models in very short-range forecasting is limited by the spinup problem, resulting in an underestimation of both the divergent wind component and the precipitation. To alleviate ...