Fig. 4
From: El Niño Southern Oscillation as an early warning tool for dengue outbreak in India
Correlation coefficient between (a) positive Summer ONI (April, May, June) and dengue case index in the monsoon season (July, August, September) and (b) positive monsoon ONI (July, August, September) and dengue case index in the post monsoon season (October, November, December). The shapefiles used for the map were open access provided by ESRI ArcGIS Online (2018). The maps were generated using ESRI ArcMap 10.2