#头条创作挑战赛 #
Most of the Yangtze River Basin of the mainland has experienced extreme drought this summer, and the drought is still continuing in many places, and the degree is still deepening, but the same latitude of Pakistan, Iran, Afghanistan, northwest India and other places have recently received heavy rainfall, of which Pakistan has received particularly heavy rainfall, the country's officials said that 1/3 of the country's territory has been flooded, the World Meteorological Organization called it a rare meteorological disaster event in history, and the United Nations called it an "unprecedented climate disaster".
Pakistan's National Disaster Management Authority (NDMA) issued a notice on August 29 that heavy rainfall has been falling across Pakistan since June 14, and according to unsat satellite imagery and data analysis, more than 55,000 square kilometers of land in Pakistan have been flooded in the 20 days from August 3 to 23 alone, and the flooding in central and southern Pakistan has been connected, like two huge lakes, and satellite maps show that the water surface area can reach tens of thousands of square kilometers.
It should be known that the area of qinghai lake on the mainland is only 4500 square kilometers, that is to say, the water surface area of Pakistan's precipitation convergence is several times that of Qinghai Lake, and the annual average area of Poyang Lake on the mainland is about 3100 square kilometers, Dongting Lake is about 2600 square kilometers, Taihu Lake is about 2400 square kilometers, Hongze Lake is about 1600 square kilometers, Chao Lake is about 800 square kilometers, and the area of the five major freshwater lakes on the mainland is only slightly more than 10,000 square kilometers. The flood water surface area formed by precipitation in central Pakistan is already several times the area of the five major freshwater lakes on the mainland combined.
According to Agence France-Presse, pakistani leaders lamented during an inspection of the flood-hit areas in northern Pakistan on August 29 that such a large-scale flood had not occurred in the past 30 years, and "there is a vast ocean everywhere." But on the same day, Pakistan's climate change minister, Shirley Rahman, said the flood was "unprecedented" and had caused a climate crisis of "unimaginable scale."
Southern Sindh and western Balochistan are large tracts of farmland and the country's main agricultural area, but both have been submerged, like a zealous country.
Both provinces are about five times more rainy than in previous years, with more than 100,000 square kilometres of flooding in the indus valley in the central part of the country alone, and satellite images show the flooding area showing a deep blue color, indicating that the water is quite deep, while dozens of rivers in the northern part of the country are still flooding, many roads and bridges have been washed away by surging flash floods, and traffic in some areas has been disrupted.
In an interview with Agence France-Presse, Rahman said that 1/3 of the country's land is "underwater" and that this "monster-level monsoon appears to have created a huge ocean (in Pakistan) and there is no dry available land to store pumped water." "The damage to the affected area is unbelievable," as we pumped the water, the rescuers asked, 'Where should we pump?' The surrounding area has become a vast ocean, and there is no land to drain the accumulated water. "Or maybe there's no place to drain floodwater in the country, and vast deserts have been turned into endless lakes."
The minister said that 1/3 of Pakistan's land has been flooded, a large area of land has almost become a sea, Pakistan's land area is about 880,000 square kilometers (counting Pakistani-controlled Kashmir), 1/3 of the area is close to 300,000 square kilometers, if you calculate according to this data, Pakistan's flood coverage area is almost equivalent to the total area of the mainland North China Plain (about 310,000 square kilometers), is more than 20 times the total area of the five major freshwater lakes on the mainland, and more than 60 times the area of Qinghai Lake. The bohai sea is 3.7 times the size of the Bohai Sea (77,000 square kilometers).
To put it bluntly, there have been severe floods on Pakistan's soil due to precipitation, and the total area covered by the flood is as large as the North China Plain. No wonder many netizens on the mainland said that the precipitation that should have been in the Yangtze River Basin this summer went down to Pakistan.
There is no doubt that Pakistan is experiencing a serious climate crisis, this year's rainfall far exceeded the average precipitation in the same period of last 30 years, Pakistan's National Disaster Management Agency on the 29th latest report shows that flood-caused disasters have caused 1136 people killed, more than 1634 people injured, the number of victims exceeded 33 million, accounting for about 15% of the country's population.
It's an epic flood! China News Network said data reported on August 31 showed that torrential rains and floods damaged 5,063 kilometers of roads and 243 bridges across Pakistan, and more than 1.05 million homes collapsed or partially destroyed, and these figures may rise further as relief efforts continue. The country has declared a state of emergency and has appealed to the international community for assistance.
So why is there such a huge amount of precipitation in Pakistan? From the perspective of the formation and development process of this monsoon system that brought huge amounts of rainfall to Pakistan, the main reason is that the tropical monsoon system in the northern part of the Indian Ocean is quite active in August this year, and a large number of warm and humid air currents of the southwest monsoon can burst into the west and north of South Asia, as well as the eastern part of West Asia, bringing a lot of rainfall, and this summer, the northwest Pacific subtropical high pressure position is westward, which also leads to the cold air on the Qinghai-Tibet Plateau is more likely to push westward, and the warm and humid air flow of the southwest monsoon in the Indian Ocean is cold and rainy after landing. The clash of cold and warm air has further increased the amount of rainfall, which has caused severe flooding in Pakistan, Afghanistan, Iran and northwest India, but fortunately, this water and gas formation pattern has been greatly weakened, and Pakistan and its vicinity will maintain sunny and hot weather for a period of time to come, which has positive significance for drainage and flood control.
Resources:
"Observer Network" August 30 article "From satellite images of Pakistan's "unprecedented flood", shocking"
Global Times Article on August 30" "Pakistani officials say 1/3 of the country is flooded, and they don't know where to drain it."