Intense Tropical Cyclones of the Northern Indian Ocean
Hoarau, K., Bernard, J. and Chalonge, L. 2012. Intense tropical cyclone activities in the northern Indian Ocean. International Journal of Climatology 32: 1935-1945.
Not mincing any words, the three French researchers simply report that "there has been no trend towards an increase in the number of categories 3-5 cyclones over the last 30 years," noting that "the decade from 1990 to 1999 was by far the most active with 11 intense cyclones while 5 intense cyclones formed in each of the other two decades," i.e., those that preceded and followed the 1990s. And they add that there has also "not been a regular increase in the number of cyclone 'landfalls' over the last three decades (1980-2009)." Once again, therefore, we have another real-world example of the occurrence of intense tropical cyclone activity being totally independent of concomitant mean global air temperature over the past three decades.
Kossin, J.P., Knapp, K.R., Vimont, D.J., Murname, R.J. and Harper, B.A. 2007. A globally consistent reanalysis of hurricane variability and trends. Geophysical Research Letters 34: 10.1029/2006GL028836.
Landsea, C.W., Harper, B.C., Hoarau, K. and Knaff, J.A. 2006. Can we detect trends in extreme tropical cyclones? Science 313: 452-454.
Webster, P.J., Holland, G.J., Curry, J.A. and Chang, H.R. 2005. Changes in tropical cyclone number, duration, and intensity in a warming environment. Science 309: 1844-1846.