The Properties of Tropical Storm Hazards in Southeast Costs of Iran

The occurrenceof extreme climate events, including tropical storms, annually leaves irreparable damage in areas under their control. Understanding these events and the knowledge of the time of their occurrence can be useful in the management of emergencies caused by them. The aim of this research is spatiotemporal reconstruction of tropical storms affecting the southeast coasts of Iran. The data used in this study include reanalysis data the National Center for Environmental Prediction )NCEP) with spatial resolution of 2° to 2° from 1871 to 2012 and the ECMWF dataset with spatial resolution 1°. In terms of temporal frequency, the results show that in total 30 tropical storms affected southern coast of Iran, directly or indirectly, during 1871-2015. The highest monthly frequencies belong to June with 21 events and July with 7 occurrences. In terms of spatial frequency, the genesis and ultimate develop of all the detected storms was the Arabian Sea and the latitudes of approximately 15° N. Most occurrences of storm, which was in June, followed the Southeast-Northwest track.