Investigation on a new dynamic state index in heavy precipitation events in the southern coasts of Caspian Sea

The Dynamic State Index (DSI) is being introduced on the basis of a newly developed theory. This study investigates relationships between heavy precipitation events and DSI using Spearman’s correlation coefficient in heavy convective، heavy non-convective، super-heavy convective and super-heavy non-convective precipitations in different levels in the southern coasts of Caspian Sea. The results show that the super-heavy convective precipitations in 310° Kelvin level have the highest positive correlation coefficient (40%).