Research Article Open Access

A Sudden Change In Rainfall Characteristics In Amman, Jordan During The Mid 1950s

Mahmoud M. Smadi1 and Ahmed Zghoul1
  • 1 , Afganistan
American Journal of Environmental Sciences
Volume 2 No. 3, 2006, 84-91

DOI: https://doi.org/10.3844/ajessp.2006.84.91

Submitted On: 24 August 2006
Published On: 30 September 2006

How to Cite: Smadi, M. M. & Zghoul, A. (2006). A Sudden Change In Rainfall Characteristics In Amman, Jordan During The Mid 1950s. American Journal of Environmental Sciences, 2(3), 84-91. https://doi.org/10.3844/ajessp.2006.84.91

Abstract

This study examines recent changes, trends and fluctuations in the total rainfall and number of rainy days at Amman Airport Meteorological (AAM) station in Jordan during the period 1922-2003. The occurrence of abrupt changes and trends were examined and identified using the Pettitt test, a combination of cumulative sum charts (CUSUM) and bootstrapping and the sequential version of Mann-Kendall rank tests. A sudden change and shift in the average of the total rainfall and annual number of rain days occurred in 1957. Annual total rainfall series from Madaba and Mafraq stations are also analyzed and showed similar change and shift points as that which appeared in AAM station. The analysis prevail a decline in the total rainfall and number of rain days in the second half of the past centaury.

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Keywords

  • Jordan
  • Amman
  • rainfall
  • abrupt changes
  • trends