Student Scholar Symposium Abstracts and Posters

Document Type

Chapman access only poster or presentation

Publication Date

Spring 5-14-2015

Faculty Advisor(s)

Hesham El-Askary


Satellite remote sensing tools were used to observe the Saharan aerosol dust event from August 13, 2005 – August 31, 2005 and its prospective effects on atmospheric cloud convective currents, precipitation and tropical cyclone formation. Aerosol Optical Depth 550 nm, Small Mode Fraction 550 nm, Angstrom Coefficient and Precipitation remote data products were examined and compared for correlative results. Observations were determined by using daily satellite images and time-averaged data series images from NASA's GIOVANNI platform and were further analyzed for overlap with basic spatial object modeling. It was observed that by using object-based orientation models and spatial overlapping methods, a clear a correlation between the location of atmospherically suspended fine/coarse dust particles and the location of increased atmospheric precipitation and tropical cyclone formation was found in this case study of Hurricane Katrina. It was proven that this research gives serious validation to continue similar climate research studies in terms of examining radiative forcing impacts, microphysics and thermodynamic processes of the aerosol-cloud interaction, particularly with dust as Giant Cloud Condensation Nuclei and Ice Forming Nuclei, and the resultant meteorological phenomena.


Presented at the Spring 2015 Student Research Day at Chapman University.

Access to this poster is restricted to Chapman University students, faculty, staff, and affiliates.

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