This paper establishes the link between human activity and climate change, e.g., more frequent and devastating typhoons, tornadoes, bushfires, droughts, floods
Although there have been many observational and modeling studies of gravity waves excited by topograpghy, the detailed structure and its changes in real world a
Intensity and variability of droughts are considered inIranduring the period 1951 to 2005. Four variables are considered: the Palmer Drought Severity Index (PDS