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[ Focus on Chemical Machinery Equipment Network ] Since the launch of the first marine satellite on May 15, 2002, 10 marine satellites have been launched, including HY-1A/1B/1C/1D, HY-2A/2B/2C/ 2D, CFOSAT, GF-3 satellites, currently HY-1A/1B have stopped working, HY-2A is downgraded, and the remaining satellites are working normally in orbit
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Chemical machinery and equipment network hotspots pay attention to chemical machinery and equipment.
Marine satellites are designed according to the detection technology capabilities and characteristics of different elements, time and space resolution, coverage and monitoring frequency requirements, and are divided into three categories according to their purposes, including marine aquatic environment, marine dynamic environment, and marine surveillance monitoring series
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Ocean One series satellites are used to observe ocean water color, water temperature, and coastal zone.
HY-1A/1B is a test star, equipped with ocean water color and water temperature scanners and coastal zone imagers
.
HY-1C/1D is a business star, equipped with ocean water color and water temperature scanner, coastal zone imager, ultraviolet imager, calibration spectrometer, ship automatic identification system, network observation in morning and afternoon, both land and sea, and the payload has a variety of spaces The advantages of resolution, high signal-to-noise ratio, high dynamic range and wide swath
.
HY-1A/1B is a test star, equipped with ocean water color and water temperature scanners and coastal zone imagers
.
HY-1C/1D is a business star, equipped with ocean water color and water temperature scanner, coastal zone imager, ultraviolet imager, calibration spectrometer, ship automatic identification system, network observation in morning and afternoon, both land and sea, and the payload has a variety of spaces The advantages of resolution, high signal-to-noise ratio, high dynamic range and wide swath
.
Ocean II series satellites are used for global all-weather sea surface wind field, wave height, sea surface height, sea surface temperature and other marine dynamic environmental parameter monitoring, and directly provide measured data for early warning and forecast of disastrous sea conditions, and for marine disaster prevention and mitigation, and maintenance of marine rights and interests.
, Marine resource development, marine environmental protection, marine scientific research and national defense construction, etc.
Provide support services, the payload is radar altimeter, microwave scatterometer, microwave radiometer, dual-frequency global positioning system, ship automatic identification system, data collection system, two-way data Communications, etc.
, HY-2A is a test star, and HY-2B/2C/2D Samsung realizes business networking observations
.
, Marine resource development, marine environmental protection, marine scientific research and national defense construction, etc.
Provide support services, the payload is radar altimeter, microwave scatterometer, microwave radiometer, dual-frequency global positioning system, ship automatic identification system, data collection system, two-way data Communications, etc.
, HY-2A is a test star, and HY-2B/2C/2D Samsung realizes business networking observations
.
Marine surveillance and monitoring satellites are used for all-weather global marine and terrestrial information surveillance and monitoring.
The payload is C-band multi-polarization synthetic aperture radar, which is used in marine, disaster reduction, water conservancy and meteorology and other fields.
It is China's implementation of marine development and land As an important technical support for environmental resource monitoring and emergency disaster prevention and mitigation, the test satellite is the GF-3 satellite, and the follow-up satellites 1m C-SAR and GF-3 satellite network will be launched in 2021 and 2022 respectively
.
The payload is C-band multi-polarization synthetic aperture radar, which is used in marine, disaster reduction, water conservancy and meteorology and other fields.
It is China's implementation of marine development and land As an important technical support for environmental resource monitoring and emergency disaster prevention and mitigation, the test satellite is the GF-3 satellite, and the follow-up satellites 1m C-SAR and GF-3 satellite network will be launched in 2021 and 2022 respectively
.
With the development of instrumentation technology, the monitoring instruments carried on satellites are also transforming from single function to multi-functional integration
.
According to reports, the existence of the six major payloads allows the operating frequency of the satellite to span 8 bands.
It can not only observe the marine dynamic environment elements, but also have the ability to automatically identify ships and receive, store and forward buoy measurement data in China’s offshore and other sea areas.
Ability
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Instrumentation monitoring instrument.
According to reports, the existence of the six major payloads allows the operating frequency of the satellite to span 8 bands.
It can not only observe the marine dynamic environment elements, but also have the ability to automatically identify ships and receive, store and forward buoy measurement data in China’s offshore and other sea areas.
Ability
.
Among them, the radar altimeter is mainly used to measure sea surface height, effective wave height, ocean current and gravity field parameters; microwave radiometer can obtain real-time sea surface temperature, sea surface wind speed, sea ice, rainfall over the ocean, water vapor content, and liquid water content in the observation area.
The microwave scatterometer can derive the wind direction and volume of the sea surface by detecting the weak scattering signal on the ocean surface and use the geometric model function; the correction radiometer is used to provide the atmospheric wet tropospheric path delay correction service for the radar altimeter
.
The microwave scatterometer can derive the wind direction and volume of the sea surface by detecting the weak scattering signal on the ocean surface and use the geometric model function; the correction radiometer is used to provide the atmospheric wet tropospheric path delay correction service for the radar altimeter
.
As an important part of the marine stereo observation network, monitoring instruments play a very important role in the marine environment and are the scientific basis for accurately judging the real-time state of the ocean
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Driven by market demand, the technical level of China's instrumentation is also constantly improving
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Driven by market demand, the technical level of China's instrumentation is also constantly improving
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But we have to face it up.
In the current marine equipment market, North America accounts for 76% of the total market share, Europe accounts for 19%, and Asia only accounts for 5%
.
For some high-performance marine environmental equipment, foreign countries have imposed embargoes, and for domestic satellite monitoring technology, there is still a lack of core technology support
.
In the future, China’s ocean observation technology and equipment still has a lot of room for improvement
.
In the current marine equipment market, North America accounts for 76% of the total market share, Europe accounts for 19%, and Asia only accounts for 5%
.
For some high-performance marine environmental equipment, foreign countries have imposed embargoes, and for domestic satellite monitoring technology, there is still a lack of core technology support
.
In the future, China’s ocean observation technology and equipment still has a lot of room for improvement
.
Satellites are an important part of the marine aqua satellite constellation and marine dynamic satellite constellation planned and implemented by China.
In the future, China will launch more satellites to deploy satellite monitoring systems
.
For relevant instrumentation companies, they must also seize the opportunity to step up research and development and continue to promote the R&D and innovation of instrumentation technology in order to achieve rapid development of the enterprise
.
In the future, China will launch more satellites to deploy satellite monitoring systems
.
For relevant instrumentation companies, they must also seize the opportunity to step up research and development and continue to promote the R&D and innovation of instrumentation technology in order to achieve rapid development of the enterprise
.
Source: Ocean Knowledge Circle
Original title: The development of marine satellites has achieved remarkable results and instruments play an important role
