What is El Nino and La Nina? How are they formed? Explanation and diagrams.

Detailed explanation of how El Nino and La Nina works. I use both an animation and also hand drawn notes to help explain the process. This video is perfect for GCSE, AS/A Level and IB DP Geographers to help them in their notes and examinations.
Please visit my teaching website: www.thegeographeronline.net

[@adityabhardwaj8422]

hi steven, i had huge problem in making this el nino stuff through my head,, but as i been through your explanation i can say that u washed away all my doubts regarding elnino,, thank you so much for such a simplified explanation,,

[@poomypoom]

Thank you so much for the explanation!

[@kennedymasilin2690]

The best explanation with helpful animation.. very helpful.. keep up the good work..

[@dhuhaalani6004]

thank you so much very simple explanation best video I found for explaining this point

[@nickbellamy2859]

What is the reason for the trade winds to weaken initially?

[@cherftography8999]

Excellent explanation! Thanks. But going back to the start, what causes the low pressure and the high pressure which kicks all this off?

[@mbaundakazombungo5120]

Your videos are really helping, great job 😭👍

[@Rahul-ni7ly]

Is IOD positive the cause of 2018 Kerala flood?

[@wolkenbummler]

Very nicely and clarely explained. But I am still in doubt. What is cause and what is effect. Is the air circulation driven by the ocean current or the ocean current driven by the wind?

[@sunnyjim981]

1 year later and no one has answered :/

[@Aenetroy]

The trade winds cause the warm water to shift toward south east asia

[@Sv-it4zs]

The trade winds weaken and causes the change in the thermocline.

[@nickbellamy2859]

@@Sv-it4zs What is the reason for the trade winds to weaken initially?

[@terasgamer9097]

@@nickbellamy2859 The easterly trade winds are driven by a surface pressure pattern of higher pressure in the eastern Pacific and lower pressure in the west. When this pressure gradient weakens, so do the trade winds. The weakened trade winds allow warmer water from the western Pacific to surge eastward, so the sea level flattens out.

[@Rahul-ni7ly]

Sir IOD?

[@leroypatrick6731]

Thank you so much for this explanation. I am enlightened to be able to use this as a point of reference

[@tylerjohnson4]

goated

[@rbr9256]

You lack te reason for the trade winds to weaken, the cause of El Nino and La Nina. Despite that, helpfull video.

[@terasgamer9097]

The easterly trade winds are driven by a surface pressure pattern of higher pressure in the eastern Pacific and lower pressure in the west. When this pressure gradient weakens, so do the trade winds. The weakened trade winds allow warmer water from the western Pacific to surge eastward, so the sea level flattens out.

[@no5972]

Thank you so much, everything is perfectly clear now, great explanations provided 👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾