Coast is a region that is vital to human welfare. Throughout the history of the past. The human settlers in the area of coastal and river Plains soil sediments due to a. Fisheries and trade, more than half of the world population. At present, residents of the sea does not exceed 60 kilometres by increasing the rate of the overall population, the coastal strip is much higher than the rate of increase in world population. Are expected to have a population of more than 10 million people. In the last year.RS 2100, located offshore of up to 16 cities in 23 cities, the rise of the sea level. Changes in the frequency and intensity of severe weather phenomenon was likely to be the most important phenomenon. Due to the changed climate
Between 18000 years ago, sea level was higher by about 100 meters but all this happened during the time when the ice age ended, the last era. When approximately 10,0 years ago, during the past century, sea level rise of approximately 18 cm or 1-2 on average.5 mm/year for an increase of the average temperature of the Earth will cause sea level to rise, because many types of mechanisms, the most obvious is the expansion of ocean water due to the heat. Melting ice sheets and polar bar. Changes in sea level also occur due to the influence of natural motion, such as changing the rotation. In the ocean, wind and air pressure Some effects cause a variation of sea level in the region.
.
However, The coast is not constant because of geological processes in accordance with nature (the movement of crust. The response from the glaciers to settling and sinking down of the land), and human activities. Gas or water and sedimentation) cause coastal land movement. Compared to the level of the sea, such as pumping underground water used to land in the locality. Sink down, which since the late 1990s, 1920 and 1930. Lol that is located on the coast, choosing sinking down due to pumping underground water brought up too much like Tokyo, Japan. Sink down 5 m City of Shanghai, China. Sink down 2.8 m, and the city of Osaka, Japan. Sink down 2.8 meters, this problem still occurs continuously. In the coastal city, Tianjin City, China and Jakarta, Indonesia. Changes in the land and sea level in each locality in this manner. The rise of the sea level of the Earth, but any other cities or coastal bar that is now faced with the problem of groundwater Earth will have more problems. If the sea rises, which is difficult to overcome. Be sensitive to sea level rise in the future as much as possible
.
Estimates of ocean and climate models today is that sea level will rise about half a meter. In about 1951 2100 and will rise further. After that if greenhouse gas emissions released into the atmosphere is also going on a regular basis, so the best approximation. In a higher rate of sea level. Until last year.RS Only 2100, which is much higher than the 100 years ago to 2-3 times from Figure 7 illustrates a wide range of plans, expected to rise of sea levels in the future. In this evaluation, there are still things that are important, of course, no 2: In response to the water in the ocean and atmosphere's warming up to the rate of melt of the ice sheet. Polar bar. Moreover Sea-level changes of each locality will be very different from the estimates, the world's average. Water flow and wind potential is strong, the volume of water increases by the coast.
การแปล กรุณารอสักครู่..
