Core Viewpoint - The implementation of ground-air data link technology by the Henan Air Traffic Control Bureau marks a significant innovation in managing complex operational scenarios such as thunderstorm diversions, enhancing digital control services in the civil aviation sector [1][4]. Group 1: Implementation and Innovation - The Henan Air Traffic Control Bureau officially launched experimental operations for ground-air data link technology on June 10, 2025, focusing on thunderstorm diversions, rerouting, and turbulence information [1]. - This initiative is part of a broader effort by the Central South Air Traffic Control Bureau to leverage digital control services, as outlined in the "Smart Civil Aviation Construction Roadmap" [1]. - Since 2018, the Central South Air Traffic Control Bureau has been conducting research on real-time information push applications based on ground-air data links, with Henan Air Traffic Control Bureau as a pilot unit [1]. Group 2: Challenges and Solutions - Thunderstorm diversions present significant challenges in air traffic management, including differences in flight paths, limited communication resources, and increased workload for controllers, leading to a substantial decrease in operational capacity [2]. - The Henan Air Traffic Control Bureau has identified four typical scenarios for data link information transmission: thunderstorm diversions, airborne rerouting, airport weather, and airborne turbulence [2]. - By utilizing data links to send weather information in advance, the air traffic control department aims to establish a unified situational awareness between ground and air, facilitating efficient handling of complex weather conditions [2]. Group 3: System Development and Testing - The Henan Air Traffic Control Bureau has developed its own ATCS system, enhancing it with features such as real-time flight plan updates and specific flight filtering [3]. - A series of tests conducted from April to May 2025 demonstrated a data transmission success rate exceeding 95%, with an average one-way delay of 3.62 seconds [3]. - The operational process is designed to minimize the workload on controllers, with a lead controller managing the data entry and verification process [3]. Group 4: Consensus and Future Directions - A seminar held on May 29, 2025, gathered various stakeholders who recognized the value of ground-air data link technology in reducing communication load during thunderstorms and improving situational awareness for flight crews [4]. - The application of this technology is expected to enhance the quality of air traffic control services and operational efficiency, laying a solid foundation for future trajectory-based operations (TBO) [4]. - The Henan Air Traffic Control Bureau plans to continue monitoring and analyzing the experimental operations, seeking industry feedback to expand application scenarios and content [4].