Author/Authors :
Rudra، R. P. نويسنده , , Dickinson، W. T. نويسنده , , Ahmed ، S. نويسنده Department of Microbiology and Hygiene, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh. , , Patel، P. نويسنده , , Zhou، J. نويسنده , , Gharabaghi، B. نويسنده School of Engineering, University of Guelph, Guelph, Ontario Canada N1G2W1 , , Khan، A. نويسنده ,
Abstract :
There is a general consensus that climate change has impact on the intensity and frequency of
rainfall events. However, very little research is available about the changes in short term rainfall extremes. The
focus of this paper has been on the change in annual and monthly rainfall extremes in Ontario. The results
indicate a greater variability (increase and decrease) among stations for shorter durations (15-min, 30-min, and
60-min). There is no obvious regional pattern with possible exception of increasing trends at north-western
locations. The monthly rainfall extremes for the months of April and May in the Northwest region are decreasing,
for May and October extremes in the southwest region and for April and May extremes in the southeast
region are increasing. The August extremes for the southwest and southeast regions are decreasing, and the
magnitude of decrease in the southwest region is almost double the magnitude in the southeast region. The
decrease in August extremes seems to have a significant impact on the annual extremes in the southwest and
southeast regions.
