Shulou(Shulou.com)11/24 Report--

The 19th Hangzhou Asian Games has been solemnly concluded, 15 competition days left countless wonderful moments: the opening ceremony of the digital torch lit the main torch, men's and women's 100-meter relay passionate, "time alone" Chusoweigina's persistence, go player Ke Jie tears in the field.

As the highest-level comprehensive games in Asia, when the competitive level of this year's Hangzhou Asian Games goes to a higher level, the construction of venues, event security, cultural activities and innovative ideas also show a very high level. Among them, the Zhejiang meteorological department can be called the "behind-the-scenes guardian" with the accurate meteorological service of "one museum, one policy" to escort the event in an orderly manner.

As we all know, the weather has always been "unpredictable". Sometimes a cloud cluster over the vicinity of the competition venues may have an impact on the events. it can be said that accurate weather service is the "reassurance" of large-scale sports events. it is also the embodiment of a high level of service guarantee for the organizers of the Games. Hangzhou Asian Games has built a meteorological service guarantee and emergency plan system, an Asian Games weather precision detection and accurate forecasting system, and omni-directional and refined accurate weather services. behind this is the Zhejiang meteorological department's collection, storage, management and use of massive meteorological data, taking various competition venues as business scenes, collecting massive meteorological data through monitoring equipment, and then taking data elements as traction. Use advanced data infrastructure to store, analyze and manage massive data elements, and form a variety of meteorological service products, and finally provide accurate meteorological services for competition venues.

The challenge of meteorological data should not be underestimated.

The accurate meteorological service of "one Pavilion, one Strategy" in Hangzhou Asian Games fully demonstrates the value of data elements. Meteorological simulation and prediction need massive observation data for modeling and analysis. the more accurate the model is, the more accurate the model is, which determines that meteorological simulation and prediction need to collect huge and multi-dimensional data, and constantly iterate the model of climate simulation. analyze and predict future meteorological trends from massive data. For the Hangzhou Asian Games, the more comprehensive and abundant the data collected, the faster the analysis and processing, which means that the meteorological model can provide accurate meteorological services of "100 meters and minutes" forecast for the event venues through continuous training and optimization. this also makes the data storage infrastructure face great challenges:

1. Temperature, humidity, summer heat pressure and other meteorological data belong to typical multi-source data types in time and space distribution. it comes from vertical profile radar, buoy monitoring ship on Qiandao Lake, comfort monitoring station on Tonglu equestrian field and satellite remote sensing observation. at the same time, it is necessary to connect with the national meteorological big data cloud platform "Sky Rock". These multi-source heterogeneous massive data are different in data type, data accuracy, correlation and other aspects, and the data storage requirements are very different in bandwidth, IOPS, time delay, concurrency and other data storage indicators. Data storage devices are required to have the ability of fusion, sharing and efficient free flow of these multi-source heterogeneous observation data on the basis of supporting multi-node independent networking, fast access and secure transmission.

Second, the accurate meteorological service of "one library, one policy" means that it is necessary to provide "100 meters and minutes" forecast, and the real-time requirements for the analysis and processing of meteorological data are extremely high. Zhejiang meteorological department in the meteorological big data cloud platform system data analysis, while ensuring 7 × 24 hours of uninterrupted and stable operation at the same time, the need for high-speed concurrent processing of massive data, the original data and processing data processing low delay It brings great challenges to the storage performance of the data infrastructure.

Third, the time span of meteorological service is long, and the population is widely used, so the demand for the stability and reliability of data infrastructure is higher and higher. The Mathematical Intelligence Meteorological Service system of the Hangzhou Asian Games supports more than 20 meteorological application scenarios and connects to more than 100 applications. a number of accurate climate services need to be provided continuously during the event, and the data infrastructure must be guaranteed in terms of reliability and stability. once the downtime, it is easy to cause the interruption of accurate meteorological services.

Wave information storage base

Base-building accurate meteorological release data potential

Tide information service Zhejiang meteorological department supports the digital intelligence meteorological service system with omni-directional, fine and visual meteorological service with a safe, reliable, economical and efficient data storage base, to provide accurate weather forecasts of 100 meters and minutes for Asian Games athletes.

In docking stereoscopic networking equipment and integrating national meteorological big data cloud platform "Sky Rock" to complete the localization application of "Sky Rock" in Zhejiang Province, ● supports multi-cloud interface protocols and multiple data storage applications (blocks, files, objects, big data, video) with one set of storage support multi-cloud interface protocols and various data storage applications (blocks, files, objects, big data, video), so as to speed up data flow and save storage resources.

● accurate numerical prediction large-scale parallel computing will produce a large amount of data in a short time, and there are many small files, which is easy to form a performance bottleneck. Tide information high-performance distributed storage AS15000, based on high-throughput parallel storage system, shortens I / O paths through GDS and RDMA technology, caches user data and file system metadata in advance through intelligent metadata management, significantly improves data access and retrieval speed, and distributes massive data pressure to multiple concurrent storage nodes, load balancing among each storage node, effectively avoiding single node performance bottleneck

According to the periodic access characteristics of meteorological data and policy-based hierarchical storage function, ● can archive historical data on a regular basis to manage the life cycle of hot, warm and cold data, realizing multi-protocol concurrent access and hierarchical storage within / between nodes, ensuring high efficiency and reducing storage costs.

In addition to ●, AS13000's built-in automatic management mechanism not only ensures security and reliability, but also greatly simplifies personnel operation, supports asynchronous periodic disaster recovery backup and sub-health management monitoring, has multiple alarm mechanisms, supports local and cloud system performance monitoring, unified interface management for multiple data centers, and easily completes system deployment, monitoring, management and maintenance. The intuitive and easy-to-understand graphical interface makes it convenient for users to monitor the status of the system in real time, simplify the installation and maintenance process, improve management efficiency, and support nanotube multi-brand storage system to achieve high utilization of IT equipment.

The advanced data infrastructure of Zhejiang meteorological department has been tested during the Asian Games. At the official opening of the Asian Games Village on September 16, it was originally scheduled to be held at 9: 00, but the hour-by-hour fine weather forecast showed light to moderate rain in the morning of the event. For this reason, it is very important to find out the precipitation intervals in the continuous morning rainfall forecast. The Asian Games meteorological station comprehensively analyzed the Asian Games meteorological micro stations, urban canopy meteorological stations and other multi-dimensional data, quickly predicted that there would be a precipitation interval between 09:30 and 10:00, and postponed the village opening ceremony originally scheduled to start at 9 o'clock to 09:30. The real situation and forecast on that day were mild. At about 09:20, the rain began to stop and turn overcast near the Asian Games Village. The ability of rapid analysis of data and the forecast of "100 meters and minutes" played a key role in the smooth holding of the opening ceremony of the Asian Games Village.

The accurate meteorological service of "one Pavilion, one Strategy" is undoubtedly a microcosm of this Asian Games of Science and Technology. Every high-level performance of athletes and every cheer of the audience inside and outside the venue are inseparable from the silent waiting of accurate meteorological service. With the wonderful end of the Asian Games, accurate meteorological service has also completed its phased mission. Facing the future, with the deepening of the construction of digital China, accurate meteorological services and the underlying data infrastructure are bound to play a greater role.

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