Haiyang 2’s three-star network brings my country’s ocean monitoring into a new era

As marine environment dynamic satellites, the Haiyang-2 series satellites are mainly used to observe global ocean dynamic phenomena and processes. This series of satellites are loaded with a variety of advanced remote sensing payloads to conduct high-precision monitoring of ocean dynamic environment data such as sea surface height, sea surface temperature, and sea surface wind fields all day and all day. For example, microwave scatterometers are used to measure sea surface wind, radar altimeters are used to measure significant wave height, global ocean waves, ocean circulation and other data, and correction radiometers are also used to cooperate with radar altimeters. Further improve measurement accuracy. In addition, there is an automatic ship identification and data collection system that can survey the position, course, speed and other data of ships on the global sea surface, providing guarantee for maritime navigation, positioning, search and rescue, etc.

The operating orbits of Haiyang 2 satellites B, C and D are different. After the three satellites built the first marine dynamic environment monitoring network, my country's ocean monitoring capabilities and efficiency have been greatly improved. , it only takes 6 hours to complete global ocean observation, which is a leap forward compared with the previous more than 20 days, and can basically meet the needs of marine scientific research, maritime transportation, maritime safety, etc. At the same time, the coverage capacity of global ocean monitoring has also been expanded to more than 90%.

The improvement of ocean monitoring capabilities can provide data support for combating global climate change. More than 70% of the earth's surface area is ocean, and 97% of the earth's water is in the ocean. The ocean has an important influence on the global atmospheric circulation and water cycle, and is the source of the main driving force of global climate and weather. In today's world, the problem of global warming is becoming increasingly serious, extreme weather is increasing, the balance of the climate system is already very fragile, and its impact on human society is also increasing.

In order to combat climate change, we need to strengthen monitoring of the ocean and gain a deeper understanding of the connection between the ocean and climate. After the Samsung network is established, my country's marine dynamic environment monitoring capabilities have been greatly improved, which will effectively promote my country's research on climate change and enhance my country's ability to respond to climate change.

The improvement of marine monitoring capabilities can provide important guarantees for monitoring and early warning of marine disasters and disaster prevention and reduction in coastal cities. my country's coastline is long and located in the monsoon area, where ocean disasters such as wave disasters and storm surges occur frequently. At the same time, coastal areas are economically developed and densely populated. Therefore, our country is the world’sOne of the countries most severely affected by marine disasters in the world. According to the "2020 China Marine Disaster Bulletin", the average direct economic loss caused by my country's marine disasters in the past ten years is about 8.8 billion yuan, and the most influential disaster is storm surge.

The Haiyang-2 series of satellites can accurately monitor sea surface wind, wave height and other data, observe the entire wind field in the northwest Pacific in real time, and provide real-time and effective high-precision warnings for typhoons and storm surges. Data can greatly improve the early warning capabilities of disaster prevention and reduction.

In addition, ocean monitoring can also provide support for distant water fisheries. By monitoring sea surface temperature and other data, the Haiyang-2 series satellites can identify fronts and mesoscale eddies in the ocean, thereby providing support for detecting the distribution of ocean fishing grounds, helping fishing companies reduce costs and increase catches.

At present, in addition to the Haiyang-2 series of satellites, my country also has Ocean-1 C and D satellites, Gaofen-3 satellites and Sino-French Ocean Satellite and other ocean satellites operating in orbit, intertwining A "Skynet" for monitoring the marine environment and ecology. Under the guidance of the maritime power strategy, this "Skynet" is gradually being improved, and my country's ocean monitoring capabilities will continue to develop.

　(Original title: Ocean 2 Samsung Network Ocean Monitoring Enters a New Era)