Bouchra Ali*⁽¹⁾ and Wadieh Khoury⁽¹⁾

(1). Department of  Natural Resources Renewable and Environment, Faculty of Agriculture, University of Aleppo, Aleppo, Syria.

(*Corresponding author. Dr. Bouchra Ali. E-Mail: balali76@yahoo.fr)

Received: 22/11/2020                                 Accepted: 23/03/2021

Abstract:

The objective of this study is to assessment and analysis the occurrence of drought, and its impact on surface water resources, by Standard Precipitation Index (SPI) and the Stream Drought Index (SDI). For this purpose used monthly rainfall data in Marqieh River sub basin (the coastal Basin) and Stream flow data for the period (1989-2011).To study the effect of drought on surface water resources, the first were examined the relationship between rainfall, and discharge response and a time lag of rain was calculated. Then  Standard Precipitation Index (SPI) and Stream Drought Index (SDI) evaluated on different timescales (3, 6, 9,12 monthly) using Pearson correlation. Results of both indices indicate moderate drought, and rarely extreme drought during the studied period. It is concluded that both indicators are suitable for monitoring the main droughts in the studied basin

Key words: Drought meteorological, Drought hydrological, Marqieh River Basin, SPI, SDI.

Full paper in Arabic: pdf