The Indian Ocean Dipole: A Missing Link between El Niño Modokiand Tropical Cyclone Intensity in the North Indian Ocean

Abstract

This study is set out to understand the impact of El Niño Modoki and the Tropical Cyclone Potential Intensity (TCPI) in the North Indian Ocean. We also hypothesized and tested if the Indian Ocean Dipole (IOD) reveals a likely connection between the two phenomena. An advanced mathematical tool namely the Empirical Mode Decomposition (EMD) is employed for the analysis. A major advantage of using EMD is its adaptability approach to deal with the non-linear and non-stationary signals which are similar to the signals used in this study and are also common in both atmospheric and oceanic sciences. This study has identified IOD as a likely missing link to explain the connection between El Niño Modoki and TCPI. This lays the groundwork for future research into this connection and its possible applications in meteorology.

Spatial and Temporal Analysis of El Niño Impact on Land and Forest Fire in Kalimantan and Sumatra

“…Positive IOD was defined when the mean of sea surface temperature (SST) in the West IOD region (10°N -10°S, 50°E -70°E) was warmer than the mean SST in the East IOD region (0°-10°S, 90°E -110°E) (Arora and Dash, 2019). Meanwhile, spatial pattern in Figure 3 shows that the area that used is at East IOD region.…”

Pre-Monsoon Cyclogenesis Over Bay of Bengal

“…Strong monsoon prohibits the genesis of C.S, increases with the increase of Global Sea Surface Temperature (GSST) Banerjee et al 2016 [27]. The NE moving / curving of CS that landfall BD and Myanmar are common during the pre-monsoon (MAM months),Mohanty U C 2019 [28].IOD coupled with El Niño Modoki can develop TC genesis in NIO, Aurora K, et al, 2019 [29].…”