#古籍里的历史#
Cyclone Daniel hit eastern Libya, bringing heavy amounts of rain and causing flooding, with a wave of up to 7 meters in the city of Derna alone, potentially killing 20,000 people.
Libya's coastline is more than 1,900 kilometers long, and the population is mainly concentrated in the narrow area of the southern Mediterranean coast, and other places are either the Gobi or the desert. Why is Libya flooding?
Libya is located on the southern shore of the Mediterranean Sea, with an area of about 1.76 million square kilometers, ranking 16th in the world. Such a vast land, but the population is only 7.1 million (2022).
Figure - Before the flood
The coastal areas of Libya have Mount Naifusai in the west and Green Mountains in the east, and both mountains have some small rivers to the Mediterranean Sea, and Libyan towns are mostly concentrated at the mouth of small rivers, and the terrain is low.
Figure - After the flood
With a total population of about 100,000, the city of Derna is located at the mouth of a small river. About one-quarter of the area was destroyed by the floods, which almost flattened the area where the floods went, and the neighborhood was covered with debris and devastated, looking like yellow-brown ruins.
This time, the rainfall near the city of Derna is about 400 mm, which is equivalent to two years of rainfall in the local area, which can be said to be rare in a century, and people really did not expect floods in the desert.
Global warming is not just a rise in temperature, but a disorder of the entire climate system, just like a human endocrine disorder. In the future, extreme weather will become more and more serious, winter will become colder, summer will become hotter and hotter, the temperature difference between day and night will become larger, hurricanes, pouring rain, drought, these natural disasters will increase significantly, and the wind and rain will decrease.
Some time ago, the Maui Island of Hawaii burned, killing and missing at least 100 people.
When the fire started, it was accompanied by a hurricane, and American scientists called the fire "flame hurricane". The gust of wind instantly turned the ground into a fiery hell, the temperature reached 537 degrees, and the fire turned into ashes in an instant.
More than 2,200 buildings in the tourist town of Lahaina were destroyed, and the main body of the town no longer existed, and was wiped off the map by a fire.
In the context of global warming, it has not happened in the past 100 years, and it may come once in the next ten or eight years, and it is becoming more and more frequent.
The flooding in Derna, Libya, in addition to underestimating the flood beast, is also related to the disrepair of the hydroelectric dam.
When Gaddafi ruled Libya for decades, because of his anti-Americanism, the United States decided to teach him a lesson, various sanctions continued, but Gaddafi was alive, and the United States decided to physically eliminate him.
In 2011, the United States supported opposition forces to wage war, and NATO carried out military strikes in the air.
Nestled in central Libya, Sirte Gulf is a natural harbor where U.S. aircraft carrier battle groups operate through the waters of Sirte to support military operations in the air and on land. Due to the lack of danger around, Libya's east-west communication artery was cut off, paralyzing national logistics.
Libya is a large area, but the desert areas in the southern interior are difficult to become effective depth, have no water sources, and do not have enough population base to rely on a vast space to carry out guerrilla warfare.
Soon Gaddafi died in the fighting, Libya fell into civil war, and warlords were divided, which has not subsided to this day.
In 2010, the oil country Equatorial Guinea ranked first in Africa (60th in the world), and Libya, another oil country, ranked second in Africa (71st in the world). In 2011, Libya rioted, U.S. bombing strikes, Gaddafi was killed. Since 2012, Libya's GDP per capita has been left behind, and the good days are gone.
There are two dams on the river, the south dam is still some distance from the city, and the north dam is close to the urban area of Derna, which protects the safety of the city. Since NATO's military strike on Libya in 2011, the two dams have been unmaintained and the facilities are old and almost abandoned.
The floodwaters poured down the river valley like a tsunami, first the south dam collapsed, and soon the north dam also collapsed, leaving the city's residents simply not having time to flee.