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The cause is still under investigation, and the research process is as follows:
Malaysian officials have announced the basic research and judgment process from relevant British agencies to determine that MH370 fell into the southern Indian Ocean. Experts from the British Aviation Accident Investigation Agency (AAIB) and the International Maritime Satellite Organisation (Inmarsat) and the Malaysian side will explain the relevant content to the families in detail.
Authorities determined that the plane was heading for the southern Indian Ocean by detecting pulse frequency shifts in the "hand shake" signal between the aircraft and the satellite, and between the satellite and the ground receiving station. This new method uses the "Doppler contribution", a theory derived from the Austrian physicist Doppler. In a nutshell, the phenomenon of a change in frequency is felt by the observer due to the relative motion between the source of the wave emitting the sound or electronic signal and the observer (receiver).
This change is called an "offset" and can also be measured in the unit of "Hz" by the instrument.
In the MH370 case, the relative position between the communication satellite and the earth is fixed, and the relative position of the MH370 aircraft will change relative to the satellite when it moves north or south over the Strait of Malacca. When the aircraft transmits the "handshake signal" at different positions, and when it is transmitted to the ground receiving station by satellite, a small difference between the signal pulse intensity and the preset strength will occur, and the speed and course of the aircraft can be judged by comparing the simulated scenes.
Inmarsat has announced that after MH370 turned off the Aviation Response System (ACARS) and the turnaround, they received at least six times that the aircraft had "shaken hands" with the satellite via the satellite data link, basically at one-hour intervals. A vice president of the agency said that this was because the airlines did not purchase information services that continuously track the trajectory of aircraft. According to Malaysia, the agency and the AAIB also conducted simulation scenario experiments based on data from six Boeing 777 aircraft, and finally determined that the burst frequency offset received by the satellite receiving station was different when the MH370 flew in different directions.
Relevant materials show that it is through the satellite signal ground receiving station in Australia that the heading and speed of the aircraft are offset by pulse frequency. The graphs released by the Malaysian side show that the curves derived from this analysis show that the data on the frequency shift of the signal pulse is highly consistent with the data on the flight to the southern Indian Ocean in the simulated scenario. If the plane is flying to the northern route, the offset calculated at the last signal "handshake" is about 50 Hz lower.
Malaysian officials believe that the last time the plane tried to "shake hands" with the satellite was at 0:11 UTC (8:11 Beijing time), and no relevant signals were received after 0:15. With no land to land, the Malaysian side believes that the plane has crashed into the southern Indian Ocean.
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End this life in the heart of the ocean.
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So the esoteric question is waiting to be further understood.
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The online version is that the plane was hijacked shortly after takeoff, changed course, and then negotiated with Ma **, but unfortunately it was not negotiated, and it ran out of fuel and crashed in the southern Indian Ocean!
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The third largest ocean of the world. Located between Asia, Oceania, Africa and Antarctica. The area including the sea is 10,000 km, excluding the area of the sea is 10,000 km, accounting for about 20% of the total area of the world's oceans.
The volume including the sea is 10,000 km, and the volume excluding the sea is 284.34 million km. The average depth of the Indian Ocean is second only to the Pacific Ocean, including the average depth of the genus sea and excluding the average depth of the genus sea. to the north are India, Pakistan and Iran; the Arabian Peninsula and Africa to the west; Australia, Indonesia (Indonesia) and the Malay Peninsula to the east; South is Antarctica; China is a British Indian Ocean Territory.
The so-called Southern Indian Ocean refers to the part of the Indian Ocean south of the equator, which is the part of the Indian Ocean in the Southern Hemisphere. Then China does not have territory in the southern hemisphere, so this has nothing to do with China.
However, COMRA has acquired 10,000km of polymetallic sulphide resource area with exclusive exploration rights in the international seabed area of the southwest Indian Ocean, and has priority rights to exploit the resource in the future. Wang Fei, chairman of the China Ocean Association, told reporters in Beijing on the 2nd that this is the first mining area application accepted and approved by the International Seabed Authority since May 7, 2010, when the International Seabed Authority adopted the Regulations on Prospecting and Exploration for Polymetallic Sulphides in the Area. The application area is located on the southwestern Indian Ocean Ridge and is limited to a rectangle with a length of 990 kilometres and a width of 290 kilometres.
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It has to be said that China is not located in the Indian Ocean, it is located in the western Pacific Ocean, the Indian Ocean is located in Asia, Africa, between Oceania and Antarctica, the southern Indian Ocean is close to Antarctica, the northern part of the Indian Ocean is close to India, Pakistan, Iran, the western part is close to the Arabian Peninsula, Africa, the east is close to Australia, Indonesia, the Malay Peninsula, and some islands and reefs in the central part are under British jurisdiction.
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There is no call for the South Indian Ocean of China.
The Southern Indian Ocean refers to the waters west of Australia and the seas east of South Africa in Africa.
If you were to refer to the Malaysia Airlines crash, it would be the waters of Western Australia.
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China and the Indian Ocean are located in southern Asia, western Australia, and eastern Africa, and are the third largest ocean in the world.
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The Indian Ocean is not part of China, and to the west of the Strait of Malacca, the Southern Indian Ocean refers to the southern part of the Indian Ocean.
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The Indian Ocean spans the northern and southern hemispheres, and the southern Indian Ocean only refers to the southern part of the Indian Ocean, which has nothing to do with China.
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I guess it's the Indian Ocean, which is in the south.
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The Indian Ocean is south of India and has nothing to do with China.