Characteristics of Cyclogenesis over the Indian Region during 1891-2011 with Special Emphasis on Bay of Bengal vis-à-vis Arabian Sea - Monitoring and Prediction of Tropical Cyclones in the Indian Ocean and Climate Change - page 104

Fig. 3 (a to b): Decadal changes of percentage of annual D and above formed in
(a) monsoon, post-monsoon and pre-monsoon and (b) of % of annual SCS formed in
pre-monsoon and post-monsoon. (c-f): Basin-wise (Arabian Sea, BoB, Indian land
areas) vis-à-vis season-wise decadal variation and Trend of various cyclonic systems
over Indian region (c) Frequencies of D and above for AS of different season, (d) same
as (c) but for BoB, (e) Frequencies of SCS and above for pre-monsoon and (f) same
but for post-monsoon.
4. Intensification Ratio in Indian Region, BoB and AS
and Cyclogenesis Capability of AS to BoB and
Identification of Their Corresponding Period of
Inter-decadal Climate Shifts
Figure 4(a-e) shows intensification ratio over Indian region, AS and BoB
computed as ratio of total SCS and above to total number of systems of D and
above as per their respective formation frequencies for annual, for cyclone