منابع مشابه
A rainfall forecast model using Artificial Neural Network
An artificial neural network model for rainfall forecasting in Bangkok, Thailand N. Q. Hung, M. S. Babel, S. Weesakul, and N. K. Tripathi School of Engineering and Technology, Asian Institute of Technology, Thailand Received: 14 December 2007 – Accepted: 17 December 2007 – Published: 30 January 2008 Correspondence to: N. Q. Hung ([email protected]) Published by Copernicus Publications ...
متن کاملPattern Recognition of Radar Echoes for Short-Range Rainfall Forecast
A four-layer feed-forward back-propagation Artificial Neural Network (ANN) is applied to weather radar echo maps of reflectivity data for the prediction of heavy rainfall events in the short-range of 1 to 2 hours. Inputs for the ANN are the cross correlations of statistical measures of a sequence of radar images. The ANN is trained to capture increasingly organized echo patterns that often are ...
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INTRODUCTION An accurate early warning system to predict impending epidemics enhances the effectiveness of preventive measures against dengue fever. The aim of this study was to develop and validate a forecasting model that could predict dengue cases and provide timely early warning in Singapore. METHODOLOGY AND PRINCIPAL FINDINGS We developed a time series Poisson multivariate regression mod...
متن کاملA prototype system to forecast rainfall induced landslides in Italy
We are designing a system to forecast rainfall-induced landslides in Italy. The system is based on a set of rainfall thresholds for the possible initiation of landslides, and an ensemble of small scale landslide hazard and risk zonations. Rainfall thresholds include existing and new, national, regional and local empirical thresholds of the intensity-duration (ID) and normalized-ID types. The ne...
متن کاملVerification of rainfall forecasts for the Vaal Dam catchment for the summer rainfall seasons
Rainfall forecasts compiled by the South African Weather Service (SAWS) are used daily by agriculture, industry, sportsmen and the general public. Because of the importance of the rainfall forecast, it is of considerable interest to know how reliable these forecasts are. The SAWS evaluates the rainfall forecasts issued by the Central Forecasting Office (CFO) on a daily basis. A hit score is det...
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ژورنال
عنوان ژورنال: Monthly Weather Review
سال: 1921
ISSN: 0027-0644,1520-0493
DOI: 10.1175/1520-0493(1921)49<183:lfsr>2.0.co;2