NORTH AMERICAN MONSOON TIME SCALE is proposed&designed by me in 1991 to study the North American monsoon and it's weather conditions&natural disasters in advance.Find it's details in all websites by searching it's name just as NORTH AMERICAN MONSOON TIME SCALE BY GANGADHARA RAO IRLAPATI and make further researches on the North American monsoon. Kindly recognize me as the inventor of North American Monsoon Time Scale by making references.