Rainfall Analysis in Lattakia (Syria) During the Period 1993–2024
DOI:
https://doi.org/10.37375/jlgs.v6i1.3774Keywords:
General trend, Sen's slope, Mann–Kendall test, SPI, coefficient of variation, isohyetal methodAbstract
Rainfall is one of the most important and vital climatic elements. This research aimed to analyze the general trend of rainfall at several rain stations in Lattakia Governorate for the period 1993–2024, using the Mann–Kendall nonparametric test to identify temporal variations in rainfall. The results indicated a significant increasing trend in annual rainfall at Bouqa and Wadi Qandeel stations, where the calculated test values exceeded the critical table value (1.96). A significant increasing trend was also observed in January at all stations, except Alhaffah station. The Standardized Precipitation Index (SPI) was calculated for the six rainy months, and the years were classified according to their humidity and aridity levels based on index categories. The results showed that the majority of years were normal. Coefficients of variation (CV) were also computed, and a map of CV classes was prepared, with the highest value recorded at Bouqa station (37%). Additionally, an isohyetal map was prepared for the same period, showing that the study area was distributed between rainfall lines of <800 mm and >1150 mm, with approximately 71.2% of the area lying between 900 mm and 1000 mm.
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