Homo sapiens.

Chapter 419 Earth Model
Egypt.

Gobi city.

At the same time that the immigrant cruise ship arrived here, a Phoenix passenger plane also landed at the city's affiliated airport in the evening.

Weng Xuehai and several colleagues from the geological department disembarked the plane in a low-key manner, and then the group checked into the employee hotel specially for internal employees.

After a quick dinner at the hotel restaurant.

They were drinking tea in the private room of the hotel's tea room while talking about the mission this time.

"Brown, is your magnetic point analysis technology reliable?"

The curly-haired Brown Vincent replied confidently: "Don't worry, as long as the three-dimensional magnetic field detector is installed, we can analyze the composition and structure of each stratum."

Weng Xuehai looked at the holographic earth projected by the laptop, feeling a little worried:

"According to your requirements, there must be at least one magnetic field detector every 80 square kilometers on the surface of the earth. In addition, there are magnetic field detectors on the seabed, high altitude, low earth orbit and synchronous orbit. This scale is very large."

However, the exploitation of this groundwater has some unknown risks.

Homo sapiens’ local magnetic field radars in Southeast Asia are very dense, and a very comprehensive shallow surface magnetic field database has also been established. As long as there is a slight disturbance in the magnetic field, the magnetic field radar can detect anomalies.

This is why Weng Xuehai, a geologist and mineralogist, appeared here. Through this technology, various underground resources can be accurately locked, reducing the difficulty of field drilling and prospecting.

So that humans can study geological activities more intuitively.

On the contrary, the great powers who are strictly guarding against Homo sapiens can only monitor a rough idea.

Many people will find that before the earthquake, there are often large-scale phenomena such as pigeons getting lost, livestock panicking, and mice moving.

This earth model project is to extend the successful experience of Southeast Asia to the global scale.

But the magnetic field radar is one of the core secrets of Homo Sapiens. At the beginning, it was the accuracy and concealment of the magnetic field radar that Homo sapiens was able to overwhelm America.

However, Homo sapiens who developed the magnetic field radar can detect the abnormal changes of the earth's magnetic field through such subtle changes in the magnetic field, coupled with supercomputer analysis.

The water level in the Nubian aquifer is declining year by year after large amounts of groundwater have been pumped away.

What is the use of this technique?

Whenever the plate wants to release the stress, the surrounding geomagnetic field will undergo a significant mutation.

"There is no other way." Brown shrugged helplessly.

The Nubian Aquifer is located in the northeastern part of the Sahara Desert, covering an area of ​​about 200 million square kilometers. It is located in the shale layer below 500 meters underground and is rich in huge freshwater resources.

Originally, the Ministry of Geology did not notice this problem.

It is based on this strict magnetic field monitoring that the Ministry of Geology successfully predicted 273 earthquakes and 3 volcanic eruptions in Southeast Asia, with an accuracy rate of 86.4% for earthquake prediction and 100% for volcanic eruption.

This data is then used to build a comprehensive Earth model that can be used to predict earthquakes and volcanoes.

Among them, magnetic field detection is very important, because the Institute of Seismology of the Ministry of Homo sapiens Geology has collected a large amount of data in the Luzon Islands, the Malay Islands, and the Himalayan seismic belt.

The so-called earth model is actually a comprehensive scientific research project to study the geological activities of the entire earth and to study and judge volcanoes and earthquakes.

The Kharja oasis had previously been pumping groundwater from the Nubian aquifer.

In the past, humans had no way of detecting such subtle mutations in the geomagnetic field, and it was difficult to make accurate judgments based on the behavior of animals.

In addition, through the precise detection of the composition and structure of the formation, plate movement, fault structure, formation stress, magma chamber pressure, groundwater network, etc. can also be analyzed.

It is also the second largest known freshwater reservoir in the world after the Antarctic ice sheet, storing 16 to 35 cubic kilometers of freshwater, which is about 1.3 to 2.9 times the current total human surface water.

The geomagnetic mutation caused by plate stress does not suddenly change suddenly, but has some precursors, and then reaches the peak at a certain moment.

The Ministry of Geology has no intention of putting a cold face on this matter. After all, the other party does not allow the airship of Homo sapiens to enter the country. Could it be that it has become the so-called "big love" and actively announced the magnetic field radar technology, or sold the equipment to the other party?

Brown, Weng Xuehai and others came to Egypt to study a special geological structure around Egypt - the Nubian aquifer.

Therefore, there is definitely no way to deploy magnetic field radars all over the world. We can only rely on magnetic field radars in low-Earth orbit and high-altitude airships to build a rough earth model.

This is actually because animals perceive sudden changes in the surrounding geomagnetic field, especially birds that rely on geomagnetic navigation, and will fly around because of this.

Of course, the earth model project is not only for detecting earthquakes and volcanoes, but also for other purposes.

Compared with traditional geological research, this time the Earth model of the Homo sapiens Geology Department will introduce various new technologies, including magnetic field detection, gravity detection, underground nuclear detonation shock wave detection, and ultra-deep drilling.

Since modern times, human activities have been too intense for geological time.

Sudden earthquakes, especially large ones, can basically be avoided in mainland Southeast Asia.

Libya next door, since the 80s, has formulated a large artificial river plan to draw a large amount of fresh water from the Nubian aquifer and transport it to the Mediterranean coast.

The magnetic point analysis technology that Brown is responsible for research is to improve the accuracy of magnetic field analysis, and realize the all-round analysis of the crust, mantle and core through cross-monitoring of magnetic field radars in all directions.

Although there is no need to worry about land subsidence in desert areas, the large-scale reduction of groundwater will cause another problem, that is, changes in stratum stress, which will affect the stability of surrounding fault structures.

A lot of groundwater has been accumulated over tens of thousands of years, or even millions of long years.

Because the precursor of a sudden large earthquake's magnetic field mutation is too obvious, on the contrary, those earthquakes below magnitude 5 are easily affected by other factors, resulting in misjudgment.

Not until some time ago, in order to build the Egyptian Space City, a comprehensive underground survey was carried out in the Kharja Oasis area, and more than 40 magnetic field radars were arranged around it, and some problems were discovered.

In fact, this detection method is that researchers of Homo sapiens have borrowed the magnetic field sensing ability of animals, especially birds.

The mission of the Ministry of Geology this time is called [Earth Model].

Through these data, they discovered a very important phenomenon, namely: the variation law of plate stress and geomagnetism.

For example, in Mexico, the Department of Geology of Homo sapiens, through the analysis of magnetic field data, found that after a large amount of groundwater was extracted, the already unstable strata would become more unstable and easily induce earthquakes.

After accumulating a large amount of seismic data, the Ministry of Geology finally established a complete set of earthquake prediction system.

This accuracy rate is already very high, and it is not detected within a few minutes before the outbreak, but can be detected several days in advance.

Another bald-headed researcher reminded: "There is not a big problem in our territory. The key is that other areas can only use magnetic field satellites in low-earth orbit, and the data that can be collected is obviously not comprehensive enough."

Of course, the control area of ​​Homo sapiens must be very precise. In addition, areas close to the control area of ​​​​Homo sapiens and central Africa can also establish a relatively complete earthquake and volcano monitoring system.

Obviously Homo sapiens is not that stupid, and the management will not be overwhelmed with sympathy.

The groundwater in an area may drop by hundreds of meters in just a few decades. This kind of change is as if a person's main artery has been cut open, and the earth's crust cannot be relieved all at once.

The mining of the Nubian aquifer in North Africa has immediately attracted the attention of the Ministry of Geology.

Although the extraction of groundwater has not been stopped, some of it has been replaced by desalination technology, and the amount of local groundwater extraction has gradually been reduced.

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(End of this chapter)