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El nino and la nina - DONE FOR EVER! - Coggle Diagram
El nino and la nina - DONE FOR EVER!
El Nino
The term El Niño refers to the large-scale ocean-atmosphere climate interaction linked to a periodic warming in sea surface temperatures across the central and east-central Equatorial Pacific. Typical El Niño effects are likely to develop over North America during the upcoming winter season.
La nina
La Niña is a climate pattern that describes the cooling of surface ocean waters along the tropical west coast of South America. La Nina is considered to be the counterpart to El Nino, which is characterized by unusually warm ocean temperatures in the equatorial region of the Pacific Ocean.
Big dry case study simple steps
Have to spend lot of money to get water supply
Had to get help form other countries
Drought in Australia
Australia is a hot place therefore it can happen quite often
Lead to lack of water and food
Big dry more in depth
Big dry
Between 2002 and 2009, the south-east of Australia experienced its worst drought in 125 years. This was credited to El Niño, where moist trade winds are reversed, so instead of bringing rainfall to Australia they travelled west towards South America, leaving south-east Australia with a lack of rainfall. Some scientists believe climate change exacerbated this drought by also reducing rainfall. It happened in New south wales, Australia.
The region most affected was the Murray-Darling River Basin in New South Wales. This area usually provides 75% of Australia's water, 40% of Australia's agricultural produce and is home to nearly 2 million people.
This drought had severe agricultural impacts:
Significant loss of livestock and crops. Some farmers had to sell machinery, land or even move elsewhere and lose their livelihood.
With fewer crops and livestock, Australia had to import more food. This increased the price of food for the whole country.
Droughts degrade the quality of the soil, affecting farming for years to come.
This drought had severe impacts on the natural ecosystem:
Wildfires caused by drought destroyed vegetation and animals' habitats.
Creeks and rivers dried up causing the organisms relying on them to die or migrate.
Increased soil erosion destroyed vegetation and the creatures which relied on it to survive.