After coming out of the K-3018 Prehistoric Biology Research Laboratory, everyone also began to get down to business, and the people from the Bureau of Land Management and a large group of "national teams" came to the headquarters of Matrix Technology not to visit the zoo. Pen, fun, and www.biquge.info

Half an hour later, Ren Hong arranged for everyone to come to a conference room and begin to discuss how to transform the 330,000-square-kilometer Taklamakan Desert.

In the conference room, a group of scientists, the Bureau of Land Management, Kang Tao and others sat in their seats, while Ren Hong was in front of a huge spotlight screen in front of the meeting, which displayed a topographic map of the western part of the country, and the Tarim Basin was in the center of the screen.

"On the transformation of this piece of the world's second largest mobile desert." Ren Hong looked at everyone, he looked back at the screen, and said: "I have to start from the climate aspect, the Tarim Basin is a typical continental monsoon climate, arid!" ”

"If you want to transform, you have to start with the root cause. The Taklamakan Desert desert appeared in the White Era, and it was not until the Cenozoic Era that it evolved into today's great desert. The typical reason is the topographic structure of the western region of China, the Tarim Basin is surrounded by mountains, the Tianshan Mountains in the north, the Pamir Plateau in the west, and the most important thing is that the ultra-high Himalayas and the Kunlun Mountains in the south are double isolated, and the southeast is the highest plateau in China and the world, resulting in the Indian Ocean water vapor can hardly enter the Tarim Basin, the Pamir Plateau in the west blocks the humid ocean airflow, and the southeast monsoon and the southwest monsoon cannot blow into the Tarim Basin......"

Ren Hong pointed to the map and said: "And this plateau and mountain range also block the dry and hot westerly wind in Central Asia to flow northward, which is undoubtedly adding fuel to the fire, the dry westerly wind in Central Asia can not be dispersed here, the Tarim Basin is surrounded by thousands of meters of mountains and plateaus on all sides, and the moist water vapor in many directions is blocked, the most deadly is that the coordinate area of the Tarim Basin is not in the monsoon region, and the arid and irritable westerly wind in Central Asia has been controlling this land, which directly led to the formation of the Taklamakan Desert." ”

A meteorologist sitting at the front also began to speak, he said: "Regarding the water vapor transport in the southern territory, my expedition team has carried out long-term field surveys over the years, and after investigation and observation over the years, we have come to some results, and we believe that the water vapor source of the Taklamakan is basically formed by the weather evolution of the mainstream system of the outer circulation, rather than the internal circulation of the Tarim Basin, which is surrounded by high mountain plateaus, and there is very little water vapor transport in the middle and lower levels. Even almost zero. ”

"A series of studies have found that the vertical transport of water vapor is relatively abundant. In the area where the Tarim Basin is located, the horizontal vertical transport of the atmosphere in the middle and lower airspace is reduced, and the convective effect of the convective cloud layer in the region moves slowly in summer, which greatly increases the vertical water vapor transport. Our study found that vertical convection is strong in the Tarim Basin, especially in summer, but unfortunately, although the vertical convection is strong, the vertical uplift is also quite strong, while the surface humidity in the Tarim Basin is very small, so small that it can reach almost zero index, and the water vapor transport is indirectly reduced. ”

Ren Hong nodded silently as he listened, and the meteorologist continued: "But it is worth mentioning that, on the contrary, the middle and low levels in this area have a large amount of horizontal transport, which is often the horizontal output of water vapor under the influence of the external monsoon, and in the application of vertical convection, theoretically speaking, this will often produce a large amount of heavy rain, such as the invasion of the heavy rain on July 23, 1988. ”

"As far as I know, that heavy rainstorm was a special case." Ren Hong said, immediately turned around to expand the map to the entire Asian range, he stared at the screen and said: "The large amount of precipitation produced in 88 was due to the southward advance of the European high pressure ridge eastward, the wave trough from West Siberia to Central Asia in the north blocked the eastward movement of the low vortex, and due to the division of the subtropical high in Iran, the southeast plateau area was in the subtropical low trough, and before the invasion of the low vortex, there was a short-term wave trough affected by it and produced a large amount of precipitation. ”

Ren Hong turned around to look at the meteorologist, then at the others, and said: "The water vapor transport in the Taklamakan area comes from the four directions of moving, west, south and north, of which the main ones are the west and north, and the water vapor in the east and south can enter the Taklamakan area in summer, but although the precipitation in July of '88 was as high as 45 mm, it was just an accident that could not be encountered. ”

"It is true that the precipitation in the Taklamakan area is actually not a minority, generally around 50 to 60 mm, but it is basically in the high mountain areas, the most typical is especially in the northern slope of the Kunlun Mountains, and the evaporation in the desert area is quite large, and the water that really falls to the ground quickly seeps into the soil layer and is evaporated." He glanced back at the map and said, "In any case, fundamentally, the climate problem of high convective vertical transport in the Taklamakan desert desert does nothing to change the local desert climate. ”

"What does Mr. Ren think about this? Or is it a solution? The meteorologist asked.

Hearing this, Ren Hong was silent for a moment, organized his words in his mind, and then said: "The problem of the Tarim Basin is still surrounded by mountains, which is affected by the geographical characteristics of the alpine plateau, and the climate of the outer circulation cannot have a direct climate impact on the interior of the Tarim Basin. ”

"The solution to the problem lies in the problem itself." Ren Hong said, which made the experts present curious.

"There are many things that they will ignore by disguising their solutions, or weaknesses, as being strong." Ren Hong said, this sentence undoubtedly puzzled everyone, but did not ask, Ren Hong obviously did not finish, after a moment, he continued: "The core factor that causes the current climate in the Taklamakan region is the cause of geographical characteristics, and the answer to the problem is here. ”

"What do you mean by that?" The meteorologists sitting in the front row are very different.

Ren Hong looked at the map in the spotlight screen again, and said: "Everyone, please look at the geographical characteristics of the Tarim Basin, surrounded by alpine plateaus, the Tianshan Mountains in the north, the Pamir Plateau in the west, the Qinghai-Tibet Plateau in the southeast, and the Himalayas and Kunlun Mountains in the south. ”

Ren Hong looked at everyone again: "The solution to the problem is to form a relatively humid climate with internal circulation in the middle and low-level airspace of the Tarim Basin, independent of the external climate cycle, in short......"

"Our starting point is the problem of internal circulation!"

(To be continued) (To be continued.) )