What is la Nina effect?

What is la Nina effect?

The warm phase of the east and the central Pacific Ocean, periodically seen once in two-seven years, is termed as El Nino and the reverse process of cooling in the same area, is labelled as La Nina. This phenomenon impacts the flow of trade winds, prevalent on either side of the equator..

What causes an El Nino weather pattern?

An El Niño condition occurs when surface water in the equatorial Pacific becomes warmer than average and east winds blow weaker than normal. During this phase of ENSO, the water is cooler than normal and the east winds are stronger. El Niños typically occur every 3 to 5 years.

What is la Nina weather?

La Niña occurs when equatorial trade winds become stronger, changing ocean surface currents and drawing cooler deep water up from below. This results in a cooling of the central and eastern tropical Pacific Ocean.

Why is the Bay of Bengal hotter?

Why Bay of Bengal is the hot-bed for cyclonic storms? The vast low pressure created by the warm water of the ocean. The Bay of Bengal shaped like a trough that makes it more hospitable for storms to gain force. The high sea surface temperature makes matters more worse in the Bay triggering the intensity of the storms.

Are we in an El Niño weather pattern?

As things stand with the El Niño-Southern Oscillation (ENSO), neutral conditions are currently present in the tropical Pacific and favored to last through the North American summer and into the fall. June 2021 sea surface temperature departure from the 1991-2020 average. …

Why Bay of Bengal has more cyclones than Arabian Sea?

Lack of landmass between the Pacific Ocean and the Bay causes cyclonic winds to move into the coastal areas causing heavy rainfall. The absence of air movements from north-western India towards the Bay in the post-monsoon phase is also another reason for the chances of cyclones in the Bay of Bengal.

What is the temperature of Bay of Bengal?

Bay of Bengal: general information

City Water Air
Haldia 85°F 80°F
Kalmunai 84°F 80°F
Coxs Bazar 85°F 80°F
Sittwe 85°F 76°F