A Comprehensive Overview of the Hydrochemical Characteristics of Precipitation across the Middle East
Issued Date
2022-09-01
Resource Type
eISSN
20734441
Scopus ID
2-s2.0-85137767912
Journal Title
Water (Switzerland)
Volume
14
Issue
17
Rights Holder(s)
SCOPUS
Bibliographic Citation
Water (Switzerland) Vol.14 No.17 (2022)
Suggested Citation
Heydarizad M., Gimeno L., Amiri S., Minaei M., Mohammadabadi H.G. A Comprehensive Overview of the Hydrochemical Characteristics of Precipitation across the Middle East. Water (Switzerland) Vol.14 No.17 (2022). doi:10.3390/w14172657 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/83153
Title
A Comprehensive Overview of the Hydrochemical Characteristics of Precipitation across the Middle East
Other Contributor(s)
Abstract
The Middle East is located in a semiarid and arid region and is faced with an intense water shortage crisis. Therefore, studying the hydrochemical characteristics of precipitation as a main part of the water cycle has great importance in this region. The hydrochemical analyses showed that the quality of precipitation was mainly affected by dust particles originating from terrestrial environments, while marine and anthropogenic sources had a minor role. The statistical studies showed that the dissolution of evaporative and carbonate minerals mainly controlled the hydrochemistry of precipitation. Precipitation had an acidic nature in some stations and a nonacidic nature in others. Ca2+ was the major acid-neutralizing cation in the Middle East precipitation. Various machine learning methods were also used to simulate the TDS values in precipitation. The accuracy of the developed models was validated, showing that the model developed by the Gboost method was more accurate than those developed by other machine learning techniques due to its higher R2 values. To conclude, the hydrochemistry of precipitation showed significant variations across the Middle East. The dissolution of particles with terrestrial origins dominantly controlled the hydrochemistry of precipitation, while marine and anthropogenic sources had minor roles.