University of Wollongong Research Online University of Wollongong Thesis Collection University of Wollongong Thesis Collections 1996 Temporal and spatial study of thunderstorm rainfall in the Greater Sydney region Ali Akbar Rasuly University of Wollongong Recommended Citation Rasuly, Ali Akbar, Temporal and spatial study of thunderstorm rainfall in the Greater Sydney region, Doctor of Philosophy thesis, School of Geosciences, University of Wollongong, 1996. http://ro.uow.edu.au/theses/1986 Research Online is the open access institutional repository for the University of Wollongong. For further information contact the UOW Library:
[email protected] TEMPORAL AND SPATIAL STUDY OF THUNDERSTORM RAINFALL IN THE GREATER SYDNEY REGION A thesis submitted in fulfilment of the requirements for the award of the degree UNIVERSITY O* DOCTOR OF PHILOSOPHY from UNIVERSITY OF WOLLONGONG by ALIAKBAR RASULY B.Sc. & M.Sc. (IRAN, TABRIZ University) SCHOOL OF GEOSCIENCES 1996 CERTIFICATION The work presented herein has not been submitted to any other university or institution for a higher degree and, unless acknowledged, is my own original work. A. A. Rasuly February 1996 i ABSTRACT Thunderstorm rainfall is considered as a very vital climatic factor because of its significant effects and often disastrous consequences upon people and the natural environment in the Greater Sydney Region. Thus, this study investigates the following aspects of thunderstorm rainfall climatology of the region between 1960 to 1993. In detail, it was found that thunderstorm rainfalls in Sydney have marked diurnal and seasonal variations. They are most frequent in the spring and summer and during the late afternoon and early evening. Thunderstorms occur primarily over the coastal areas and mountains, and less frequently over the lowland interior of the Sydney basin.