China News Service, Beijing, May 15th (Ma Shuisha, Zhang Guohang, Mao Lingye) Vigorously developing and widely applying marine satellites is an indispensable technical means to promote the construction of a maritime power.
It has been 20 years since the launch of China's first ocean satellite, Ocean-1A, on May 15, 2002.
Thousands of miles of sea and border welcome "Eye of the Sky"
Using satellites to conduct remote sensing observations of the ocean, obtain various data, and open up application space has unique advantages.
Since the United States launched the first ocean satellite in 1978, Japan, Canada, Russia and other countries have successively launched ocean satellites.
China has a sea and territory that stretches for tens of thousands of miles, and is eagerly calling for a "scientific steward" who can remotely view the ocean from space.
On May 15, 2002, the Haiyang No. 1 satellite was launched into space, achieving a "zero" breakthrough in China's marine satellites; on May 29, the satellite was connected to the ground, and the first orbit remote sensing image data was transmitted. The image is clear and the ocean features are obvious. .
China's vast "blue country" has since then had "eyes of the sky".
Photo courtesy of the Fifth Academy of China Aerospace Science and Technology Corporation
Ocean Satellite Family "Tianding"
On April 11, 2007, China's second ocean color satellite, Ocean-1 B satellite, was successfully launched. Its actual on-orbit life span reached 9 years and 10 months, and it became a famous "longevity star" in the field of small satellites in China.
On August 16, 2011, China ushered in the successful launch of its first marine dynamic environment detection satellite, Ocean-2.
It cooperates with the in-orbit Ocean-1 satellite to further improve China's three-dimensional marine monitoring system.
On September 7, 2018, the Ocean-1C satellite was launched, which opened the prelude to the medium and long-term development planning of China's civil space infrastructure for marine business satellites.
On June 11, 2020, the Haiyang-1 D satellite was launched, and together with the Haiyang-1 C satellite, it formed China's first marine civilian business satellite constellation, realizing the double-star morning and afternoon network observation, greatly improving the ocean water color and coastal resources. Effective observation of the ecological environment.
China's ocean satellites enter the era of networked observation
Ocean-2 B, C, and D satellites were successfully launched in 2018, 2020, and 2021, and China's first marine dynamic environment monitoring network was established in orbit.
After the Samsung network is put into operation, it only takes 6 hours to cover more than 80% of the global ocean monitoring. The efficiency and accuracy of ocean monitoring have been greatly improved, reaching the international leading level, effectively serving China's marine disaster prevention and mitigation, marine transportation, and the development of marine economy. wait for work.
In addition to the Haiyang-1 and Haiyang-2 series of satellites, China has also launched the Gaofen-3 series of satellites. China's marine satellites have entered the era of networked observation, and have formed the capability of continuous high-frequency observation coverage of the global sea area.
Photo courtesy of the Fifth Academy of China Aerospace Science and Technology Corporation at the Sino-French marine satellite development site
Sino-French Ocean Satellite Strengthens International Cooperation
The Sino-French Ocean Satellite is the first satellite jointly developed by China and France.
On October 29, 2018, the satellite was successfully launched at the Jiuquan Satellite Launch Center.
The Sino-French Ocean Satellite is the first time in the history of China's aerospace industry that it has carried out system-level and whole-process cooperation with an advanced aerospace country.
The satellite platform is provided by China, and the two payloads are shared by China and France.
Among them, the Chinese side is responsible for the development of the sea wind observation payload, and the French side is responsible for the development of the ocean wave observation payload. With the help of the two advanced payloads, the satellite has realized the global simultaneous observation of wind and waves for the first time.
In addition, the satellite launch and measurement and control work are undertaken by the Chinese side, and both China and France have established data receiving ground stations.
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