成都双流和天府两机场RVR时空分布统计分析

Runway-End Differences of RVR at Chengdu Shuangliu and Tianfu Airports

摘要: 通过分析双流、天府机场多跑道运行下各跑道端RVR特征，对标管制和航司精细服务需求，为预警信息发布以及航班起降调度提供参考，为改扩建工程观测平台选址提供理论依据。选取双流机场2019~2023年、天府机场2021~2023年自动观测资料，以RVR < 1500 m过程为样本，按300 m、550 m阈值分级，开展距平与持续时间相关分析。结果显示双流机场东跑道低值更集中，西跑道呈“南低北高”；天府机场R29与MID_29_11低值占比偏高，低RVR多在夜间。天气系统及微地形影响下，多跑道机场各端RVR要素时空分布存在差异，报文发布、预警预报以及航班起降决策中，可引入跑道端差异约束。

Abstract: Analyzes the RVR differences at runway ends under multi-runway operations at Chengdu Shuangliu and Chengdu Tianfu airports, providing references for flights takeoff/landing scheduling, and offering a theoretical basis for observation-site selection in airport expansion and reconstruction projects. Automatic observation data from Shuangliu Airport (2019~2023) and Tianfu Airport (2021~2023) were selected. RVR < 1500 m events were used as samples, statistics were compiled by thresholds of 300 m and 550 m, and anomaly (departure-from-mean) as well as duration-based correlation analyses were conducted. At Shuangliu Airport, low RVR values are more concentrated on the east runway, while the west runway shows a “south lower, north higher” pattern; at Tianfu Airport, R29 and MID_29_11 have relatively high proportions of low values, and conditions are worse at night. Under the influence of mesoscale weather systems and local terrain, the spatiotemporal distribution of RVR elements across runway ends differs. Runway-end differences can be incorporated as constraints in weather message issuance, meteorological warning/forecasting, and flight takeoff/landing decision-making to improve operational efficiency.