65438+1October 15 ~ 18, known as "the first marine exhibition in China", China Marine Economic Expo was held in Shenzhen. As the only national marine economic exhibition in China, this Expo has held many multi-level and multi-dimensional marine economic forums with an international vision and a forward-looking and pragmatic spirit, creating a feast of wisdom for the global marine economy.
As one of the sub-forums of this Expo, "Intelligent Ocean and Information Value-added Service Forum" was successfully held in Shenzhen on June 65438+1October 65438+June. The forum was co-sponsored by the State Key Laboratory of Satellite Marine Environmental Dynamics of the Second Institute of Oceanography of the Ministry of Natural Resources and Shenzhen Special Economic Zone Construction and Development Group Co., Ltd., with the assistance of the National Satellite Marine Application Center of the Ministry of Natural Resources and the State Key Laboratory of Offshore Marine Environmental Science of Xiamen University.
In order to deepen the discussion, the forum set up a round-table session, and five special guests further elaborated their views on topics such as "how to improve the value-added service of marine observation information" and "how to promote the application support of marine observation and knowledge information to social services and economic development" and launched a heated discussion. The guests also interacted with the audience, actively shared their views and suggestions, and contributed wisdom and strength to the high-quality development of the marine economy.
Data-driven and scenario application are efficient engines for comprehensively promoting the construction of a maritime power. At present, various sea-related activities put forward an urgent demand for intelligent access to marine information and value-added services. This forum has set up a high-level communication platform and effectively promoted the alliance of Industry-University-Research.
Chen Jianfang, deputy director of the Second Institute of Oceanography of the Ministry of Natural Resources, said that with the development of the new engine of marine economy, marine fisheries, coastal industries, green shipping, green development and efficient utilization of marine resources, as well as various sea-related activities such as disaster prevention and mitigation, ecological restoration, marine insurance and environmental supervision, there is a very urgent need for intelligent access to marine information and value-added services. The Second Institute of Oceanography of the Ministry of Natural Resources and the State Key Laboratory of Satellite Marine Environmental Dynamics actively explore and develop related technologies in this regard. SatCO2, an online ocean remote sensing analysis platform jointly developed by the two institutes, provides online sharing and analysis services for more than 20 satellites and more than 60 ocean parameters for Internet users, spanning 30 years. The results have been popularized and applied in more than 20 countries, further breaking through the bottleneck of convenient and efficient use of marine satellite remote sensing data and expanding the application ability and value of marine remote sensing data and scientific research results.
Delu Pan, Academician of China Academy of Engineering:
At present, there is a problem of "both supply and demand are booming, but the value is not high" in marine remote sensing information service.
Wisdom ocean is to serve the ocean with knowledge, which is the real wisdom ocean. Smart ocean big data is the engine of core information equipment research and development and the soul of smart ocean.
One of the cores of smart ocean is stereoscopic observation network, which is an important source of ocean big data and is very important in the construction of smart ocean. In my opinion, the current dilemma of marine remote sensing information appreciation is "both supply and demand are booming, and the value is not high". Where is the bottleneck? It is reflected in three "shortcomings": first, the inversion information of remote sensing data is inaccurate; Second, information extraction knowledge is unscientific; Third, knowledge service is not intelligent.
Therefore, we should take the government as the leading factor and adhere to the four overall plans: demand overall plan, satellite overall plan, soft and hard overall plan and medium and long-term overall plan. It is necessary to take enterprises as the center and establish a market economic mechanism integrating politics, enterprises, production, learning and research. At the same time, increase investment and strengthen basic research and key technology research. In view of the technical level, it is necessary to accurately build the marine spatio-temporal reference network, from the mainland spatio-temporal reference control network to the marine spatio-temporal reference control network and the global spatio-temporal reference control network, we must track the frontier, check for leaks and fill gaps. Actively develop two major satellites, one is a full-time geostationary satellite and the other is a full-space laser satellite. At the same time, it is necessary to develop an intelligent service platform and an artificial intelligence remote sensing commercial application platform.
Wang Yuxiang, Chairman of Aerospace Hongtu Information Technology Co., Ltd.:
In the next stage, ocean remote sensing satellite image processing software will gradually develop from stand-alone and cluster to cloud service. Users do not need to buy computers, data, storage and other equipment and resources, but only need a cloud platform account to solve all problems.
At present, there are still many problems in the acquisition, sharing, analysis and application of ocean big data, such as inconsistent standards, isolated islands of information, poor compatibility, difficult landing and so on. By integrating remote sensing image processing technology with cloud computing, artificial intelligence, big data and other technologies, massive remote sensing data resources and large-scale computing resources are gathered in the cloud. Through online on-demand real-time computing and intelligent computing, the time cost and resource cost of remote sensing applications are greatly reduced, big data fusion applications are promoted, sharing channels are unblocked, and users are provided with one-stop cloud services for remote sensing storage, computing, management and use.
PIE-Engine Studio remote sensing computing cloud service released by Aerospace Hongtu has data mining and analysis capabilities in marine law enforcement supervision, marine disaster prevention and mitigation, and marine industry dynamic supervision. In the future, PIE-Engine Studio remote sensing computing cloud service will further enhance China's ocean remote sensing big data service capability, and play an important role in improving the timeliness of data acquisition, processing and service, improving data privacy and security, enhancing multi-source data association mining and knowledge service, and improving service pertinence and effectiveness.
He Xianqiang, a researcher at the Second Institute of Oceanography, Ministry of Natural Resources:
Marine ecological remote sensing has great industrial application potential, and has important application value in government supervision, fisheries, enterprises, disaster prevention and mitigation, etc. Compared with land remote sensing applications, marine ecological remote sensing applications need to be further explored in depth and breadth.
The high-quality and sustainable development of marine economy must depend on a healthy ecological environment. Marine ecological remote sensing has great industrial application potential, and has important application value in government supervision, fisheries, enterprises, disaster prevention and mitigation, etc.
However, from the industrial application of marine remote sensing in China, there are still some shortcomings. First of all, there is a lack of useful products for end users; Second, the lack of high-precision, high-value products; Third, the scale of users is greatly limited. Therefore, the next step is to innovate the production and application mode of data, enrich the means of production, and expand the participation scale of producers and users, thus forming a new ecology of the industry. Among them, the difficulty of enriching the means of production mainly lies in the need to comprehensively improve the water application ability of marine, terrestrial and meteorological satellites, while different series of satellites have great differences in band and performance, so the bottleneck of high-precision water remote sensing application of terrestrial meteorological satellites needs to be broken through urgently.
To solve these problems, we must first build a radiation transmission model integrating land, sea and air. In this regard, we have a good foundation in the early stage and built a leading water radiation transmission model. Secondly, it is necessary to solve the business production technology of high-precision water application products of land satellites and meteorological satellites. At the same time, it is necessary to overcome the problem that the existing satellite remote sensing can only detect the surface layer, develop laser remote sensing technology and remote sensing-digital-analog fusion application technology, and realize the inversion from surface detection to full profile.
In addition, it is necessary to build the marine remote sensing industry ecology, solve the bottleneck of industrial application, break through the three major technologies-basic remote sensing science, new technology and application mode, and actively promote the breakthrough of basic remote sensing science and new technology. Based on the Internet interactive platform, improve self-hematopoietic capacity, innovate application mode, develop an online product production and application service platform for ocean remote sensing for Internet users, and create in-depth industrial and commercial application scenarios.
Jiang Xingwei, Academician of China Academy of Engineering:
How to extract, apply, develop and serve the fishery environment and fishery information with marine fishery remote sensing service as the starting point after marine satellites enter the network operation is beyond the reach of a research institute or center. It is necessary to gather everyone's wisdom and strength to raise the fishery remote sensing information service to a new level.
Ocean fishing can relieve the pressure of offshore fishery resources, ensure the effective supply of aquatic products, and play an important role in realizing the sustainable development of marine fisheries in China. The state attaches great importance to the development of offshore fishing. In recent years, China's offshore fishing industry has made rapid progress in fishing boat equipment and fishing equipment, but there are still some problems, such as lack of fishing ground information, unclear fishing situation in new fishing grounds, long understanding of fishing experience, large investment and limitations, large investment in scientific exploration and investigation, and limited scope.
To do a good job in offshore fishing, a key point is to find fishing grounds accurately and quickly, in which remote sensing technology of offshore fishing plays an irreplaceable role.
In recent years, the National Satellite Ocean Application Center, together with a number of scientific research institutes, universities and enterprises involved in the sea, has actively explored and solved the bottleneck of marine fishery remote sensing technology, and continuously improved fishery forecasting models and online service capabilities.
The era of multi-spectral, multi-factor, all-day and global coverage of remote sensing big data has arrived, which is both an opportunity and a challenge. How will we serve the era of big data? How to break through the refined application technology? In the future, we will continue our efforts in the following aspects: First, we will build a three-dimensional monitoring network for marine fishery environment by satellite remote sensing and strengthen our operational capabilities; The second is to promote the comprehensive application service of fishing boat data based on 5S technology; The third is the construction of big data online phishing service system on the cloud; The fourth is to strengthen the construction of highly integrated information analysis application platform and provide popular online services.
Xu, President of Huawei Ocean Global Sales Department:
Submarine optical cable carries more than 99% of the global international data transmission and is the "central nerve" of the global Internet. Submarine cable is also an important strategic resource for building a global ocean centre city. We call on government departments to put submarine optical cable construction into strategic consideration as soon as possible, put infrastructure construction in the first place, and build a global data interconnection center node.
As the "central nerve" of the global international network interconnection, submarine optical cable carries more than 99% of the global international data transmission. In 2008, Huawei Ocean began to set foot in deep-sea transoceanic communication. Since 12, Huawei Ocean has become one of the four recognized manufacturers in the global submarine cable industry.
From a strategic point of view, submarine cable is an important infrastructure for building a global ocean centre city. The global ocean centre city should not only be a traditional trade and logistics center, but also be regarded as a global information flow hub with higher strategic significance.
As the infrastructure of the international communication and information superhighway, the construction of submarine optical cable should rely on the development strategy of the country and the city, so as to achieve the first construction. The large-capacity, low-delay, high-quality international communication network resources brought by submarine optical cable will help the city to become the central node of regional or global data interconnection, attract more international top industries such as Internet, data center, cloud computing and big data application to settle in, incubate the global international innovative digital economy business model, realize the global communication information convergence, and form the demonstration and leading role of the global ocean centre city.
Director of Tang Guangdong Key Laboratory of Marine Remote Sensing:
"Air pump" has many unknown functions and is worth studying. Satellite remote sensing provides an important research method.
Wind acts on the ocean surface, changing the movement and state of water, and producing a series of environmental and ecological effects. This process is collectively called "air pump". Environmental changes and rising sea surface temperature will cause changes in the frequency, intensity and even time of typhoons, and will also affect marine ecosystems. Phytoplankton is very important in marine ecosystem, that is, primary productivity.
The upper water temperature in the South China Sea is relatively high, and its important feature is stratification. Stratification affects the mixing of water bodies, and nutrients sink to the bottom, which leads to the decrease of nutrients, so there are fewer phytoplankton, lower primary productivity and relatively scarce fishery resources. But after the typhoon, the water mixed, the upwelling strengthened, and the cold water containing more nutrients came up below. Therefore, it can be seen that phytoplankton grows faster and its concentration will increase in the affected waters with lower water temperature after the typhoon.
Generally speaking, the "wind pump" changed the transport of nutrients, promoted the circulation of marine biogenic elements, promoted the primary production of the upper ocean and ecosystem, and further affected fishery resources. "Air pump" has many unknown functions and is worth studying. Satellite remote sensing provides an important research method.
Dai, Academician of China Academy of Sciences and Chair Professor of Xiamen University:
Marine health is related to the sustainable development of mankind. At present, the ocean is facing the dual pressures of human activities and climate change, and is undergoing rapid and substantial changes. Observation, data and scientific cognition are the basis of seeking feasible solutions: there is no sustainable development without science.
The ocean is to the earth what water is to man. At present, the marine ecosystem is facing unprecedented pressure from global climate change and regional/local human activities, and is undergoing rapid changes. Therefore, the health of the ocean and its sustainable development are more important than ever.
Our understanding of the ocean is still quite rough. So far, humans have only explored 5% of the oceans, and 95% of the oceans have not been explored, which is a huge challenge for the oceans. Therefore, obtaining accurate data on the basis of ocean observation and forming a scientific understanding of the ocean are the basis for seeking an effective action plan in the future.
Zhejiang University Seeking Truth from distinguished professor and Chen Ying;
The construction of marine pasture needs effective marine technology. The core engineering and technical problems of human settlement environment construction can be attributed to the regulation of flow field in physics. Artificial upwelling can adjust the flow field, change the biochemical parameters of breeding environment, and artificial downflow can slow down the phenomenon of hypoxia, which is an effective technology for marine pasture habitat construction.
In the construction of marine pasture, habitat construction technology is the core of marine pasture construction. Artificial reef technology is not the only choice to build marine pasture. For example, in the case of deep water and lack of oxygen, artificial reef technology will be powerless. In addition to artificial reefs, there are artificial upwelling and artificial downflow. Flow field regulation is the core of marine pasture habitat construction technology.
The technical points of artificial up/down flow in ocean mainly include: simple structure, optimized flow field, efficient flow control mechanism and in-situ energy supply technology. By controlling the flow field, the artificial upwelling changes the biochemical parameters of the culture environment, and the artificial downflow slows down the phenomenon of hypoxia.
The scientific research team of Zhejiang University has implemented a nutrient upgrading project based on artificial upwelling technology in Aoshan Bay, Shandong Province, and a demonstration project of hypoxia mitigation in marine pasture based on artificial downflow in Mayang Island, Shandong Province, which initially proved the feasibility of artificial upwelling and artificial downflow technology. In the future practice of marine pasture, Zhejiang University will work with its domestic counterparts to make effective use of marine technology and strive to build a modern marine pasture.
Liu Jianqiang, Deputy Director of the National Satellite Ocean Application Center of the Ministry of Natural Resources:
Let more satellite data go online and move on the Internet, improve data collection rate through satellite-ground cooperation and multi-satellite networking, and improve data utilization rate through data sharing. In addition to marine satellites, we should make full use of other satellites in marine applications and give full play to the advantages of various satellites, and also make good use of marine satellite data in land applications.
Pain points of disaster and environmental monitoring: long sampling time and space interval, less data in the afternoon; Clear sky Wan Li, less effective data, poor quality; Docking and publicity are not in place, and services cannot keep up.
The on-orbit Haiyang-1 C/D satellite, Haiyang-2 B/C satellite, Sino-French Ocean satellite and Gaofen-3 satellite constitute a network, which has the characteristics of all-weather, all-weather and global observation, and can obtain global multi-scale and multi-factor information at high frequency, periodically and in near real time. Combined with on-site marine monitoring means, it has made great achievements that cannot be replaced by previous on-site monitoring means, and has become the leading means of operational observation of oceans, coastal zones and Antarctica.
There are many successful cases of marine satellites in natural disasters and ecological environment monitoring, and their comprehensive application prospects in many fields are very broad. We look forward to working together with you to tap the potential of on-orbit ocean satellites, do a good job in integrated applications, do a good job in last mile support, do a good job in docking services with local governments and the international community, actively promote the development of a new generation of ocean color satellites, and accelerate the establishment of high-orbit coastal satellites.