Abstract
The Saharan Oscillation Index (SaOI) plays a pivotal role in shaping atmospheric dynamics and influencing the transport of Saharan dust, with significant environmental and health impacts. Dust storms, fueled by SaOI phases, contribute to respiratory and cardiovascular diseases across vast regions. Understanding the SaOI’s behavior and its correlation with global climate indices is essential for improving predictions and mitigating health risks. This study examines the positive and negative phases of the SaOI, analyzing their effects on atmospheric pressure zones, mean sea-level pressure (MSLP), and correlations with indices such as the NAOI, ONI, and AO. Using normalized SaOI data (1950–2023), seasonal and annual correlations were evaluated. High and low SaOI phases were linked to distinct atmospheric pressure patterns, driving dust transport across large distances. Morocco was analyzed as a case study for dust-related health impacts. Results reveal that positive SaOI phases align with elevated high-pressure zones, facilitating dust transport, while negative phases correlate with low-pressure zones, altering regional dynamics. Moderate correlations between SaOI and global indices highlight potential teleconnections influencing atmospheric patterns. Seasonal lag correlations further refine understanding of SaOI’s role in climate systems. This research underscores SaOI’s potential for advancing early warning systems and guiding adaptive air quality and public health strategies. Refining SaOI metrics can enhance forecasting and improve responses to dust-related environmental and health challenges.
Presenters
Younes TebbaaiStudent, Ph.D., Université Mohammed VI des Sciences et de la Santé, Morocco
Details
Presentation Type
Paper Presentation in a Themed Session
Theme
Assessing Impacts in Diverse Ecosystems
KEYWORDS
Saharan Oscillation Index, Dust Transport, Atmospheric Dynamics, Climate Indices, Air
