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- W4286285103 abstract "Abstract Rainfall prediction is a fascinating topic, particularly in an urban city experiencing climate change; it is also required for hydrologic system analysis and design. Most real-time rainfall prediction algorithms use conceptual models that simulate the hydrological cycle in a changing climate. However, calibration of “conceptual” or “physically based models” is typically challenging and time-consuming due to the large number of variables and factors. Simpler “artificial neural network (ANN)” predictions may thus seem promising. To this end, this study aimed to evaluate the performance of two of the most commonly used ANN models, namely “Multilayer Perception (MLP)” and “Radial Bias Function (RBF)”, by predicting the rainfall trend patterns in the mega city of Dhaka, Bangladesh. In this perspective, rainfall is considered as a dependent variable and the rest of the parameters are considered as independent variables for predicting the trends of rainfall in this region. In the prediction models, fifteen conditioned atmospheric and meteorological parameters were used, and the multi-collinearity of these parameters was checked by the “Variance Inflation Factor” and “Tolerance” methods. The performance of the ANN models was evaluated by comparing the predicted and residuals and also by using AOC and ROC curves. The importance study from the MLP model revealed that PM 10 , O 3 , PM 2.5 , NO x , and wind speed are the highest causal factors influencing the rainfall changes in Dhaka, Bangladesh. Though both ANN models produced similar robustness in rainfall prediction, results showed that MLP performed well with an AUC value of 0.941, compared to the RBF model with an AUC value of 0.915. Therefore, the application of the MLP model can be suggested as an alternative to predict the pattern of rainfall as well as meteorological and atmospheric variables based on historical recorded datasets." @default.
- W4286285103 created "2022-07-21" @default.
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- W4286285103 date "2022-06-06" @default.
- W4286285103 modified "2023-10-14" @default.
- W4286285103 title "Multilayer perception and radial basis function models for predicting trends of rainfall in Asian megacity Dhaka, Bangladesh" @default.
- W4286285103 doi "https://doi.org/10.21203/rs.3.rs-1720286/v1" @default.
- W4286285103 hasPublicationYear "2022" @default.
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