Why does bay of bengal faces more depression and cyclone compared to arabian sea?
Answers
Your solution:
The primary reason for the Bay of Bengal(BOB) faces more depressions and cyclones than the Arabian sea(AS) is sea surface temperature (SST) which is generally higher in the bay of Bengal than the Arabian sea due to the high stratification and less Mixing in the Bay of Bengal than the Arabian sea. Actually there are some favourable conditions for cyclogenesis. they are 1.warm sea surface temperature(>26.5 degrees), 2.large convective instability,3.Coriolisl force, 4.low level positive vorticity, 5.weak vertical wind shear of horizontal wind. But Why i am saying especially about SST which is one of primary factor for the formation of depressions and cyclones over the sea than the other factors, Because, the persisting of high sea surface temperature (about 28 degrees) over the sea(BOB) is necessary for convection to take place in the overlying atmosphere. As we know that the SST values in the BOB are nearly around 28 degrees throughout year, but in the Arabian sea the 28 degrees won't appears throughout year like BOB. why i am specifying 28 degrees, because the 28 degrees SST is necessary to form convection (convection in the atmosphere
Explanation:
The India Meteorological Department (IMD) has predicted the formation of a low-pressure area in the south Andaman Sea on April 30, 2020. ... IMD has not stated in its press release if the depression will further intensify into a deep depression or a cyclone or if it will de intensify