Trend and Variability Analysis and Forecasting of Rainfall in Bangladesh

Pakistan Journal of Meteorology

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Title Trend and Variability Analysis and Forecasting of Rainfall in Bangladesh
Creator A, Syeda J
Description An attempt was made to investigate the trend and variability pattern for annual and seasonal (Three crop seasons) total rainfall (TR) for all the six divisional stations in Bangladesh: Dhaka, Rajshahi, Khulna, Barisal, Sylhet and Chittagong. The monthly TR (2009-2012) is forecasted using univariate Box-Jenkin’s ARIMA (autoregressive integrated moving average) modelling technique on the basis of minimum root mean square forecasting error. The rates of linear trend for annual TR were found positive for all the stations where the rate was significant for Khulna (5.82 mm/yr) only. The fairly high rates were observed for Dhaka (4.77) and Sylhet (2.83 mm/yr) with abnormal and/or no stationary residuals while the low rates were documented for Barisal, Chittagong and Rajshahi. During Kharif season, the positive rates are established for Dhaka (2.09) and Khulna (3.63 mm/yr) while negative for other four stations. During and Rabi seasons, the rate was again approved positive except Rabi season of Rajshahi (negative). The findings support that the climate of Bangladesh is changing in terms of total yearly rainfall which will affect its agriculture in different ways.
Publisher Pakistan Journal of Meteorology
Date 2013-07-20
Type info:eu-repo/semantics/article
Peer-reviewed Article
Source Pakistan Journal of Meteorology; Vol 10, No 19 (2013)
Language eng
Rights Copyright (c) 2017 Pakistan Journal of Meteorology

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