This PowerPoint presentation will tell you about the El Nino, its causes and its impact on the different region of earth including case study of El Nino that occured in 1982-83.

1. A PowerPoint Presentation by :
Siddharth S
1517125

2. Do you know that a lot of what happens in
the air is because of the temperature of the
oceans ?
El Nino is one such phenomenon that occurs
because of this oceanic temperature
difference.

3.  El Nino is an abnormal weather pattern
caused by the warming of the Pacific Ocean
near the equator, off the coast of South
America having important consequences for
weather around the globe.
 During El Nino winds across the Pacific
change direction and blow from West to
East.
 This changes the weather patterns around
the Pacific.

5.  To understand this, first we have to know
what’s normally happening in the tropical
Pacific.

6.  The trade winds move warm surface
water towards the western Pacific.
 Cold water wells up along the west
coast of South America (near Peru)
 This upwelling of cool water is
important for fish stocks in Peru.

8.  Air pressure over West of S. America
becomes low and air over west Australia
becomes high.
 The normal east to west trade winds over
Pacific are disrupted and warm water shifts
eastwards.
 No upwelling on S. American Coast.

10.  Wet winters over south-eastern United States.
 Droughts in Indonesia and Australia, and
other places that are typically wet.
 Flood in South America in areas that are
typically dry.
 Wildfires and Mudslides.
 Warmer Weather in the upper Mid-west States
and Canada.

13. Bushfires in Australia.
Typhoon in Taiwan &
China.

14. Australia plagued by
Drought during El Nino.
Forestfire in the Amazon

15. Mudslides in Colorado
River Basin.
Fish industries devastated
in South America.

16.  We definetly cannot stop El Nino.
 This is a global climatic
phenomenon and its
influences is on global
natural winds patterns.
 If you wanted to stop El
Nino, you should change the Earth's orbit, its
distance with the Sun, its shape and
composition, especially at its poles,.............
As you see, forget about avoiding it.

17.  We can only predict El Nino using
 1)Satellite readings from buoys strategically
set in the Pacific Ocean.
 2)Complex Computer models.

18. A Presentation By Siddharth S
Roll No. 1517125
B.Sc Chemistry (Hons.)