Đề tài Elnino

 El Nino is a phenomenon of breaking the normal condition of the ocean system - the atmosphere in the tropical Pacific Causes affect weather on a global scale.

Nino

 

pptx17 trang | Chia sẻ: gaobeo18 | Lượt xem: 1026 | Lượt tải: 0download
Bạn đang xem nội dung tài liệu Đề tài Elnino, để tải tài liệu về máy bạn click vào nút TẢI VỀ ở trên
Welcome you to the presentation of group 2MEMBER OF GROUPWhat is El Nino? El Nino is a phenomenon of breaking the normal condition of the ocean system - the atmosphere in the tropical Pacific Causes affect weather on a global scale.Nino El Nino occursNot El Nino occursWhy is El Nino?  El Nino is the result of the interaction of the sea surface in the tropical Pacific atmospheric layer just above it. This phenomenon is caused by interal forces between two surfaces: “ocean + atmosphere”. El Nino forms in Pacific waters The change in air pressure, heating up the Earth, or even the seabed earthquake, volcanic Width of the Pacific is also one of the causes of the phenomenon of El Nino was born El Nino typically does not occur regularly, but are in a cycle from 2-7 years. Each El Nino amplitude intensity and different time	 Pacific Ocean has a length of 990mEl Nino caused the impact? Rainstorms, flooding, which is the most visible phenomenon of El Nino. Occur in countries of South America, Romania, Bulgaria, or Russia's Black Sea coast. Because of warm currents in the eastern Pacific along the Chile, Peru ... pushed into the air a huge amount of water vapor. Create an unusual amount of rain, sometimes up to 15 cm of rainfall per day. El Nino causes storm in U.S. Drought occurred in the countries of the Eastern Hemisphere. Countries often influenced by the El Nino drought caused: Australia, Philippines, Indonesia, Thailand, Vietnam ... By focusing on a cloudy area with high density. Therefore, the rest of the world have suffered severe droughts.El Nino appears hot and dry However, El Nino is not always cause disaster for humans. More than 5,000 years ago, when this new phenomenon is discovered, Peruvian fishermen El Nino means "good news". Since then rising sea warm enough for microbial growth. They are food for fish. So that the fishing of coastal South American countries to develop strong.El Nino drought in ThailandConsequences In 1997, in South American countries lost an estimated $ 96 billion due to storms, floods from El Nino caused.In Australia has made millions of kangaroos, sheep and cows ... dying of thirst. New South Wales for nine months without rain, freshwater lakes Hinze (Queensland) exhausted. In Thailand, more than a million homes were severely dehydrated. Sheep and cattle died of thirstShortages in Thailand drinking	Do great damage to people, economic disaster - and especially social damage can not fix the environment.The response Scientists have proposed three solutions to deal with this phenomenon:Accurately forecast the time of appearance, and health forecast path of destruction.No deforestation, carbon dioxide emissions into the air, because of El Nino stronger ground if the lack of trees or to the greenhouse phenomenon occurs. Float building evacuation route (for flood zone) or to store water (for dry regions). The buoysThank you for the presentation of the monitoring group 2please protect our earth

File đính kèm:

  • pptxElnino.pptx
Bài giảng liên quan