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Type 625B Shiyan-3 / Experiment 3

Experiment No. 3 is a 625B marine integrated survey vessel. It was built by Shanghai Hudong Shipyard in 1980-81. The length is 104.21 meters, the ship is 13.74 meters wide, the draft is 4.95 meters, the power is 4800 horsepower 2 , the maximum speed is 19.5 knots, the cruising capacity is 9000 nautical miles, and the crew is 94 people.

It is equipped with 13 laboratories including hydrology, chemistry, biology, physics and geology. It has a GPS navigation system and a radar collision avoidance system. Temperature, salt, deep detection system, CTD- multi-bottle water collection system, chemical analysis polarograph, plankton collector, 10,000 meters depth sounder, wave buoy, ADCP navigation detection system, 3000 m biological winch, 3000 m Hydrological winch, 6000m geological winch, 13700m benthic winch, etc. It is mainly used for comprehensive investigation of marine environment, marine ecology, development of marine biological resources and sea - air relationship.

In 1984 over 7 months, in 1985 over 6 months, and 1986 over 4 months Experiment 3 number for the Nansha Islands sea area conducted three oceanographic cruises comprehensive scientific investigation, which lasted a total of 140 days, range 1.2 million km, the sampling stations 167. It also carried out special investigations on the Zengmu Shoal Sea area and obtained a large number of first-hand information on seabed topography, geomorphology, sedimentation and marine hydrometeorology, seawater optical characteristics, marine chemistry, marine biology, etc., and prepared more than 30 research reports. In 1987 , "Zengmu Shoal - China Southern Xinjiang Comprehensive Investigation Research Report" was published.

Under the "Seventh Five-Year Plan" - Experiment No. 3 and No. 2 during the "Ninth Five-Year Plan" period and the survey vessels of the "Nanfeng 701" and "Nanfeng 703" fishery survey vessels of the South China Sea Fisheries Research Institute of the Ministry of Agriculture completed the Nansha Islands comprehensive marine survey missions in the vicinity of the sea area comprehensive scientific investigation, research on the land resources, ecology, environment and other fields of Nansha, safeguarding China's maritime rights and interests, and obtained a lot of research results. In recent years, the experiment No. 3 has completed the national 908 special project "China's offshore comprehensive survey and evaluation project", "Nanhai North open voyage scientific investigation" and other investigation tasks.

The South China Sea Institute of Oceanology (SCSIO) was founded in 1959. It is one of the largest marine research institutes in China and is also a participant in CASs Knowledge Innovation Program. SCSIO has two research vessels, Shiyan 2 and Shiyan 3, which are capable of carrying out large-scale oceanographic surveys. The institute is also acquiring a new small-waterplane-area twin hull (SWATH) ship for research purposes. In addition, SCSIO has a Tropical Marine Biology Specimen Hall and an Information Service Center. The Chinese Peoples Liberation Army Navy or PLAN has been sending a large number of oceanographic survey ships to the Indian Ocean region. Besides, Chinese warships and nuclear submarines have been making port calls in Colombo.

The scientific research ship "Experiment 3" has a length of 104.2 meters, a width of 13.7 meters, a full-load displacement of 3,243 tons, and a maximum speed of about 33 kilometers per hour. It can conduct various types of marine geology, hydrology, chemistry, biology, and acoustics. The marine scientific investigation of China is a mobile sea comprehensive experimental platform.

Shiyan 3 in early 2018 surveyed Pakistans exclusive economic zone (EEZ). At the invitation of the Pakistan National Institute of Oceanography, the "Experiment 3" research ship of the South China Sea Institute of Oceanology, Chinese Academy of Sciences set sail from Guangzhou on the 30th and went to Karachi Port in Pakistan. For the first time, scientists from the two countries will jointly conduct a comprehensive marine survey in the Mokran Trench in the North Indian Ocean.

This is Chinas first voyage to be invited by Pakistan to enter the Mokran Trench in the North Indian Ocean to carry out marine scientific investigations. It provides scientific basis for disaster reduction and at the same time serves the construction along the Belt and Road.

After the "Experiment 3" scientific research ship sailed from Guangzhou, it sailed through the Strait of Malacca to Karachi Port in southern Pakistan. Scientists from China and Pakistan took the "Experiment 3" scientific research vessel to jointly conduct multidisciplinary comprehensive surveys of marine geology, marine biology, and microorganisms in the waters off Pakistan and the North Indian Ocean Mokran Trench. It is planned to return to Guangzhou after completing the scientific examination in February 2018.

The China-Pakistan joint scientific expedition was led by the South China Sea Institute of Oceanology, Chinese Academy of Sciences. More than 70 team members from more than 10 domestic scientific research institutes and Pakistani institutions such as the National Institute of Oceanography of Pakistan participated in the joint scientific expedition. Lin Jian, a distinguished researcher of the South China Sea Institute of Oceanology, Chinese Academy of Sciences, serves as the chief scientist.

Under the guidance of the Belt and Road initiative, the South China Sea Institute of Oceanology, Chinese Academy of Sciences and the National Institute of Oceanography of Pakistan formally signed a cooperation agreement in early 2017, deciding to conduct extensive cooperation in the field of marine scientific research in the North Indian Ocean. The joint scientific examination is an important step in the substantial cooperation between the two parties.

According to Lin Jian, the geological structure of the North Indian Ocean is closely related to the uplift of the Qinghai-Tibet Plateau. It is located in the Moklan Trench area to the west of the Qinghai-Tibet Plateau. It has the characteristics of ultra-low subduction angle and is an international frontier research object. At present, the international scientific community has little research on the Mokran Trench. The first-hand valuable data collected during this voyage will help to study key issues in the field of North Indian Ocean geoscience.

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Page last modified: 01-08-2021 14:08:19 ZULU