Problem description:
Didn't watch the news, what's the specific background?
Analysis:
New Orleans, located in Louisiana, is surrounded by water on three sides, with an average elevation below sea level, and the lowest point is 3 meters below sea level. At ordinary times, it only relies on flood levees, drainage canals and giant pumps to pump water to fight floods. The city's main industries are tourism, manufacturing and ports, with a total population of about 485,000.
Meteorologists predict that the huge waves and floods caused by Hurricane Katrina will be as high as nearly 10 meter, which will exceed the height of the city's flood control wall and may cause a disastrous blow to the city.
According to the National Hurricane Research Center on the morning of 28th EST, the wind speed of Hurricane Katrina has reached 257km per hour, rising to category 5 hurricane, and it is expected to land on the southeast coast of Louisiana on the morning of 29th EST.
In the safire-Simpson system, category five hurricane is the highest level. This system divides hurricanes into five grades from strong to weak: the wind speed of the first-class hurricane is between118km and153km per hour, and the wave height caused by the storm is1.5m; The wind speed of category 5 hurricane exceeds 249 kilometers per hour, and the wave height caused by the storm is above 5.5 meters.
This time, the damage was mainly caused by three states, concentrated in two states, one is Louisiana and the other is Mississippi. The economies of these two states account for 2% of the American economy. Everyone said that even if 2% is less, it doesn't matter, but these two states have more important places. * * * and The Wall Street Journal in the United States, including satirical magazines in the United States, have made a long analysis of this economic loss. The most important point is to compare it with 911:91destroyed new york's financial center, which is of a single nature. Louisiana and Mississippi are called mixed economy of old and new. In addition to networking and communication, there are many things such as shipping and logistics, which are very large and specific substances. For example, ports, such as oil pipelines, for example, Louisiana is the largest exporter of grain in the United States, including soybeans exported to China, corn and barley. However, if the facilities in this port are destroyed, the software can be recovered easily, but the repair of hardware transport machinery will be very slow. Therefore, the impact of this hurricane on the American economy is far more than 911,and it is very easy to replicate after 911.To put it bluntly, white-collar companies can replicate.
The American economy is closely linked to the global economy. One is the oil refining in these two States and the Gulf of Mexico. There are 14 refineries, and now nine have been closed. There has been an oil shortage in Atlanta, with gasoline down by 20% and natural gas lost by 23%. Raw materials and products have greatly promoted the next step. Let me give you an example. Because the transportation of grain and cereals is blocked, the price of bananas imported into the United States has increased by 25%. Of course, there are related product price increases, which not only affect the whole United States, but also have a very great impact on the global economy.
Five victims of hurricane disaster in the United States died of cholera, and 400 thousand people may be unemployed
New Orleans is still a vibrant and vibrant this beautiful city. After the "looting" of hurricanes and floods, the city is now almost an "empty city".
Reid, leader of the Democratic Party of the US Senate, estimated on the 6th that the cost of disaster relief and reconstruction in the hurricane-stricken areas in the United States may eventually reach as high as150 billion US dollars.
The mayor of New Orleans said that the number of victims could reach 1 10,000. Riley, deputy police chief of New Orleans, said that about 400-500 people were missing from the city's 1600 police force.