China built an ocean drilling ship, but it turned out to be so good that it accidentally became the world's most advanced ocean drilling ship, which is the "Dream" independently designed by the mainland.
The ocean drilling ship, also known as the "marine technology aircraft carrier", is now the only one in the world that the United States, Japan and China can build this ship, and whoever can build this ship will likely become the leader of the ocean drilling program.
Why do we want to drill the ocean? Because drilling the ocean can give us a clearer understanding of the earth, for example: the hypothesis of seafloor expansion, which was finally confirmed by ocean drilling ships, and also created a new discipline of paleooceanography, through the study of oceanic sedimentary rocks, we also know the earth's climate change, how the warm period and the ice age alternate, and also discovered the deep seabed biosphere, the study of the East Asian monsoon, the continental rift valley and so on.
Then some people said that these are all basic disciplines, too high, and have nothing to do with society, so oil, seabed mineral deposits, and combustible ice have nothing to do with society. Ocean drilling, although it is a basic discipline service, but all countries are not stupid, when drilling the ocean, they also want to know whether there is gold, oil, combustible ice in this area, in fact, combustible ice is discovered with ocean drilling ships.
Now there are a total of 2 ocean drilling ships in the world, 1 is the United States' "Resolve", the disadvantage is that it has been in service for more than 40 years, and is expected to be decommissioned in 2028; 1 is Japan's "Earth", which is five times larger than the "Resolve", but it costs a lot of money, spending 500,000 US dollars a day, and it is more expensive to perform the mission, and it can only drill in shallow seas, and it was originally planned to carry out 6 voyages a year, but because of lack of money, only 4 voyages were carried out in 7 years, and most of the time it was stopped at the port. There are no fixed ships in Europe, and they are all chartered ships for drilling, but because they are not specialized ocean drilling ships, the drilling is not deep, and an average of one voyage is implemented every two years.
The mainland does not have its own oceanic drilling vessels, and now it pays a membership fee of $3 million a year to the United States, which is entitled to rights and interests according to the membership fee paid. Because it is not its own ship, the mainland can rarely organize voyages on its own, and the number of places that can be boarded on the ship is limited.
For example, in 1999, the 184th voyage of the Integrated Ocean Drilling Program (IDOP) was the first ocean drilling in the South China Sea, and the mainland only had three places on board. On the 349th voyage in 2014, the mainland paid an annual fee of 3 million yuan and also provided $6 million for the South China Sea voyage, so that 13 Chinese scientists came on board, and to say more, a full crew of about 28 people.
If we can have our own ocean drilling ship, then we will be able to organize voyages independently, and we will also enter the leadership of the integrated ocean drilling program, have our own ship, and speak more confidently, and we can also do more exploration according to national goals, such as: Japan's "Earth", which is to link the earthquake mechanism with scientific research, because Japan is often threatened by earthquakes, which is closely related to Japan's national interests.
Now, the mainland has built an ocean drilling ship "Dream", with a total tonnage of about 33,000 tons, a length of 179 meters, a width of 32 meters, a endurance of 15,000 nautical miles, and a self-sustaining force of 120 days.
The Moho interface is about 30-40 kilometers below the continent, about 6-7 kilometers under the ocean, our ship can drill into the Moho interface and enter the mantle, which is something that human beings have never done before, maybe there are more scientific discoveries below the Moho interface, and even more treasures of the earth will be discovered.
I read that the propaganda draft of the Dream says that after the completion of the "Dream", it will provide important equipment support for the exploration and exploitation of ocean energy resources, and become the "important weapon of the country" to ensure national energy security and the "core weapon" to support the construction of a maritime power. In other words, our ocean drilling ship is more inclined to ocean energy resource exploration, which is also more in line with the interests of mainland countries.
Secondly, in the past, the ocean drilling program was led by the United States, and it was necessary to pay an expensive membership fee, and many developing countries could not afford it and did not participate, but they also had drilling programs in the ocean within their borders, and our dream could provide opportunities for developing countries to study earth science, just like our space station, and also opened the door for developing countries.
With this ship, the earth core we dig out in the future will be stored in Shanghai, the mainland, and the relevant departments of the mainland will review and issue samples to which experts or research institutes, just like the moon rock brought back by Chang'e-5, to provide convenience for more Chinese scientists, so this ship is of great significance to us in terms of earth science. #头条讲真的#