A classification of synoptic patterns inducing heavy precipitation in Saudi Arabia during the period 2000-2014

Date
2018-01-01
Authors
Samman, Ahmad
Gallus, William
Journal Title
Journal ISSN
Volume Title
Publisher
Altmetrics
Authors
Research Projects
Organizational Units
Journal Issue
Series
Abstract

This study investigates the synoptic patterns associated with the development of heavy rainfall in five different regions of Saudi Arabia. Different synoptic patterns were derived for the heavy rainfall events using a correlation-based map of pattern classifications applied to 1000 hPa gridded NCEP/UCAR reanalysis data for the period 2000-2014. The study summarizes six major synoptic features and classifies 28 detailed synoptic patterns emerging from 186 cases. The derived synoptic patterns differ significantly at lower levels but are relatively similar at upper levels. Heavy rainfall events were most frequent in winter and then spring, while a small percentage occurred during fall in all the regions of the country. In summer, heavy precipitation was restricted to the southern region, which is influenced by an upslope flow.

Description

This article is published as Samman, Ahmad E., and William A. Gallus Jr. "A classification of synoptic patterns inducing heavy precipitation in Saudi Arabia during the period 2000-2014." Atmósfera 31, no. 1 (2018): 47-67. DOI: 10.20937/atm.2018.31.01.04. Posted with permission.

Keywords
Heavy rainfall, Synoptic classification, Saudi Arabia, Red Sea, Trough
Citation
DOI
Collections