Rainfall Analysis for Hyderabad and Nawabshah, Sindh, Pakistan
The climatic change has a visible impact in recent abnormal weather events, such as Pakistan’s intensification of the hydrological cycle with changing precipitation pattern, water availability periods, and weather-induced natural disasters. The rainfall flush flood of 2010 alone displaced millionσ of people and damaged properties in just one stroke. The next year, the shocking rainfall flood of 2011 in Sindh, only underscored the enormity of the challenge posed by climate change. The current paper presents the analysis carried out for one-day annual maximum rainfall for Hyderabad and Nawabshah cities, Sindh, Pakistan for the period from 1961 to 2011 using STATISTICA Software for interpolating and forecasting the rainfall time series. The maximum values of observed rainfall were 250.70mm and 256.30mm, while the minimum values were 3.0mm and 0.0mm for Hyderabad and Nawabshah respectively, while the mean of fifty-one (51) years of rainfall data is 51.96mm and 45.3 mm and the computed standard deviations were 42.693mm and 43.896mm respectively. The difference between the mean and standard deviation of one-day maximum rainfall is small, which showed the consistency of the data. The polynomial trend curved lines exhibited fluctuations in the rainfall data, which indicates a continual change in rainfall behavior. Hence, the rainfall data are subjected to a moving mean smoothing with a duration shorter than 3 years. Through these trends, the future one-day annual maximum rainfall can be predicted. The correlation of one-day annual maximum rainfall between Hyderabad and Nawabshah cities had R2 of 0.973. The computed results of return periods of 3, 5, and 10 years for one-day annual maximum rainfall for both cities revealed that the rainfall values for Hyderabad are higher.
M. A. Mellieres and C. Marechal, Climate Change: Past, Present, and Future. John Wiley & Sons, 2015.
A. Mahessar, A. Qureshi, G. Dars, and M. Solangi, "Climate Change Impacts on Vulnerable Guddu and Sukkur Barrages in Indus River, Sindh," Sindh University Research Journal (Science Series), vol. 49, no. 1, pp. 137-142, Jan. 2019.
A. A. Mahessar et al., "Flash Flood Climatology in the Lower Region of Southern Sindh," Engineering, Technology & Applied Science Research, vol. 9, no. 4, pp. 4474-4479, Aug. 2019. DOI: https://doi.org/10.48084/etasr.2726
V. Chow, D. Maidment, and L. Mays, Applied Hydrology, 1st ed. New York, NY, USA: McGraw-Hill, 1988.
S. Das, S. V. Singh, E. N. Rajagopal, and R. Gall, "Mesoscale Modeling for Mountain Weather Forecasting Over the Himalayas," Bulletin of the American Meteorological Society, vol. 84, no. 9, pp. 1237-1244, Sep. 2003. DOI: https://doi.org/10.1175/BAMS-84-9-1237
G. Rasul, Q.-Z. Chaudhry, Z. Sixiong, and Z. Qingcun, "A diagnostic study of record heavy rain in twin cities Islāmābad-Rāwalpindi," Advances in Atmospheric Sciences, vol. 21, no. 6, pp. 976-988, Dec. 2004. DOI: https://doi.org/10.1007/BF02915599
M. Muslehuddin, H. Mir, and N. Faisal, "Sindh Summer (June-September) Monsoon Rainfall Prediction," Pakistan Journal of Meteorology, vol. 2, no. 4, pp. 91-108, Nov. 2005.
S. Khan and M. Ul-Hasan, "Climate Classification of Pakistan," International Journal of Environment and Pollution, vol. 10, no. 2, pp. 60-71, Jan. 2019. DOI: https://doi.org/10.46660/ijeeg.Vol10.Iss2.2019.264
"Drought Bulletin of Pakistan July-September 2012," National Drought Monitoring Centre , Pakistan Meteorological Department, Islamabad, Pakistan, 2012.
"Pakistan: Monsoon 2011, Situation Report No. 2," OCHA Pakistan, 2011. Accessed: Dec. 12, 2020. [Online]. Available: https://m.reliefweb.int/report/446066.
"Climate of Hyderabad, Sindh," Wikipedia. Jul. 24, 2020, Accessed: Dec. 12, 2020. [Online]. Available: https://en.wikipedia.org/w/
"Climate of Nawabshah," Wikipedia. https://en.wikipedia-on-ipfs.org/wiki/Climate_of_Nawabshah.html (accessed Dec. 12, 2020).
A. A. Mahessar, S. Qureshi, A. L. Qureshi, K. Ansari, and G. H. Dars, "Impact of the Effluents of Hyderabad City, Tando Muhammad Khan, and Matli on Phuleli Canal Water," Engineering, Technology & Applied Science Research, vol. 10, no. 1, pp. 5281-5287, Feb. 2020. DOI: https://doi.org/10.48084/etasr.3269
I. H. Ibrahim, "Differences between Statistical Software Packages, (SAS, SPSS, and MINITAB), As Applied to Binary Response Variable." 1999.
Statistica Quick Reference. StatSoft, Incorporated, 2007.
D. C. Montgomery, C. L. Jennings, and M. Kulahci, Introduction to Time Series Analysis and Forecasting, 2nd edition. Hoboken, NJ, USA: Wiley-Interscience, 2015.
S. Salma, S. Rehman, and M. A. Shah, "Rainfall trends in different climate zones of Pakistan," Pakistan Journal of Meteorology, vol. 9, no. 17, pp. 37-47, 2012.
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