Fig. 5: Area-average of critical environmental parameters that influence cyclogenesis over the genesis region.
From: ENSO influence on Bay of Bengal cyclogenesis confined to low latitudes
a sea surface temperature (°C), b mid-tropospheric (700 hPa) relative humidity (%), c vertical wind shear between 850 and 200 hPa (ms−1), and d low-level (850 hPa) absolute vorticity (x10−5s−1) averaged over the low latitudinal genesis region (5°–10°N, 83°–95°E, under red shades), and high latitudinal genesis region (10°–20°N, 83°–95°E, under green shades) during the contrasting phases of ENSO and IOD. The horizontal dashed lines indicate the mean values of cyclogenesis parameters in LLC and HLC genesis region.
