贵阳机场低能见度与低RVR相关性浅析及一次辐射雾天气分析

Correlation Analysis between Low Visibility and Low RVR in Guiyang Airport and a Radiation Fog Weather Analysis

摘要: 本文基于贵阳龙洞堡机场整点天气报告资料，通过统计分析，探寻低能见度与低RVR之间潜在的相关关系。结果表明：低能见度、低RVR变化趋势比较一致；季节变化特征：出现频次为冬季 > 秋季 > 夏季 > 春季；每年的1月、8月、10月、12月低能见度、低RVR出现频次最多；6月、7月、9月出现最少；低能见度与低RVR均在后半夜出现次数最多，即世界时21时~次日01时(北京时05时~次日09时)出现次数最多；在下午至前半夜出现次数最少，即世界时05时~15时(北京时13时~23时)出现次数最少。

Abstract: Based on the whole point weather report data of Guiyang Longdongbao airport, this paper explores the potential correlation between low visibility and low RVR through statistical analysis. The results show that the variation trends of low visibility and low RVR are relatively consistent; seasonal variation characteristics: the occurrence frequency is winter > autumn > summer > spring; low visibility and low RVR occur most frequently in January, August, October and December every year; in June, July and September, the occurrence was the least; both low visibility and low RVR occurred the most in the second half of the night, i.e. 21:00 UTC~01:00 the next day (05:00 Beijing time~09:00 the next day); it appears the least from the afternoon to the first midnight, that is, it appears the least from 05:00 to 15:00 universal time (13:00 to 23:00 Beijing time).