A person in charge of the rescue described the front-line rescue, saying that in more than 20 years of practice, this is the most complex rescue operation he has experienced. "The area involved is mostly untouched primitive forests, in the deep mountains, all high-tech equipment all failed, even the local guides can not tell the direction, the village has never been here before, the people around if you are two or three meters away from, can not see." The person in charge recalled.
It is understood that the remains will be transported down the mountain road is even more treacherous, around the jungle bushes at least two or three meters high, the front must be held by a machete to open the road. In addition, the general simple stretcher simply can not meet the demand for the transfer of remains. Coupled with the remains of the transfer process, the mountain has been raining, can be said to be difficult to walk.
The extreme eye news reporter saw from the video shot by the Yunnan Province mountain rescue team involved in the rescue, they organized a silent ceremony in the mountain. At the end of the silence, the rescuers said that the four geologists were killed, which is not the result that everyone wants, "or that, no rescue is the best rescue, I hope everyone is safe."
Why did the carry fire lose temperature? Search and rescue captain to explain the three major doubts in the death of geological surveyor in the Mourning Mountains
What is the Mourning Mountains in the end? Yang Xiaodong, deputy director of the Mourning Mountain Forest Ecosystem Research Station, said in an interview with the media,
Why would the personnel of a professional geological survey organization also be lost? Yunnan Mourning Mountains National Nature Reserve Zhenyuan Management Bureau director Wang Hongdong previously interviewed, the preliminary judgment caused four people lost two factors, one is affected by the bad weather, may lead to the lost personnel orientation judgment error; on the other hand, the area belongs to the Mourning Mountains topography and geomorphology of the most complex area, the lost personnel in the case of disorientation is difficult to go out and the complex terrain may also be The complex terrain may also lead to different degrees of injuries to the lost people.
Suspicion 1: Why did the geologists lose their way?
Mechanical compass interfered with by magnetic disorder, no local guide accompanied
Early on, mechanical compass, as a necessity for field survey work and survival, was an important tool for investigators to carry with them. But the shortcoming is that the mechanical compass is too single function.
"The function of the cell phone is many times more powerful than the compass, the compass is mainly to guide you in the direction of southeast, northwest and north." Tan Zhang, captain of the Yuelu Blue Sky Rescue Team, who participated in the rescue activities for the lost people in the Mourning Mountains, told the New Beijing News that the compass will only be used when the network is interrupted and there is no signal.
Tan Zhang said the four people used a mechanical compass, which produced a wrong direction guide due to a magnetic disorder on Mount Mourning, causing them to keep circling the temporary camp. "The Mourning Mountains are part of the Hengduan Mountains, which are a high earthquake-prone area in our country, and before and after earthquakes can cause the compass to be magnetically disturbed."
Huiying, the founder of Exploring the Forces of Nature, who has done a number of wildlife survey projects, believes the compasses have effectively been relegated to the last generation of obsolete products. Today's cell phones typically come with built-in compasses to locate and indicate directions. "Although cell phones don't have signal at particular times, a lot of outdoor navigation software is available to assist with orientation based on the compass built into your phone."
It is worth noting that the four lost men went into the mountains without being accompanied by a local guide. A ranger had said in a media interview, Mourning Mountains became a national nature reserve, with the management gradually standardized, perfect, access to the protected area need to obtain permission, tourists are not allowed to enter, professionals also need to be accompanied by rangers.
June 1, 2017, "Yuxi Xinping Mourning Mountain County-level Nature Reserve Regulations" officially implemented, in the protection and management, the regulations clearly, the core area in addition to the approval of the law can be accessed to engage in scientific research observations, investigations and activities, prohibit any other units and individuals to enter. For scientific research needs, must enter the core area to engage in scientific research observation, investigation activities, should be submitted to the protected area management institutions to apply for and activity plan, and approved by the competent forestry department.
Suspicious point 2: positioning equipment RTK why did not open?
Investigators may not have found the established sample points
RTK is a new commonly used GPS measurement method, the previous static, fast static and dynamic measurements need to be solved after the fact in order to obtain centimeter-level accuracy, while RTK is a measurement method that can obtain centimeter-level positioning accuracy in the field in real time.
As planned, the four lost people should turn on the RTK equipment on Nov. 14th. By pressing the button of the equipment, rescuers would be able to locate where the four were based on the data sent back from the satellite system. However, from 14 to 11 o'clock on the 21st, the four lost people never turned on the RTK equipment, so the rescuers were unable to locate them according to it during the rescue process.
"My personal estimation is that the 4 investigators were not able to find the established sample point, so they never opened the RTK either." Tan Zhang told reporters, "in the case of extreme panic, perhaps the four investigators forgot how to use the RTK."
Hui Ying also said, RTK equipment is to a point to turn it on, and another base of the equipment to interact with the realization of the two GPS positioning, to exchange data. "They may have been some distance away from the destination where they needed to turn on the RTK device, so they didn't. But they may also not have realized that by turning on the RTK device, search and rescue crews can find them.