基于百度指数的上海市气象信息网络关注度分析
Analysis of Network Attention of Shanghai Meteorological Information Based on Baidu Index
中文摘要：
利用百度指数和气象资料数据，将“上海天气”“上海高温”和“上海台风”作为搜索关键词，对上海气象信息的网络关注度进行统计分析，研究其网络关注度特征。研究发现： 1）以“上海天气”为关键词，2014—2016年关注度呈上升趋势，2017—2021年变化不明显；春季和夏季关注度较高，初秋和冬末较低；周内变化不明显，周一相对较高；法定节假日期间关注时间提前量在2～4天左右，假期内的变化特征存在差异，但假期结束3天内仍维持较高的关注度。2）以“上海高温”为关键词，公众关注度与日最高气温的变化趋势基本一致。公众对首次40 ℃的高温及连续高温天气关注度较高，并在6月底—7月初已对高温天气有所关注。3）以“上海台风”为关键词，公众关注度与日极大风速、日降水量的变化趋势基本一致；公众对“上海台风”的关注起始时间与台风的生成时间相吻合；关注度显著增多出现在台风本体影响的前2天左右。围绕气象部门如何优化公众气象服务、建立气象舆情数据库、运用新媒体传播等方面提出建议，以期为气象服务提供借鉴。
中文关键词：
百度指数，上海天气，上海高温，上海台风
KeyWords：
Baidu index, weather in Shanghai, high-temperature in Shanghai, typhoon in Shanghai
Abstract：
Using Baidu index and meteorological data, we analyze the network attention of Shanghai meteorological information with “weather in Shanghai”, “high-temperature in Shanghai” and “typhoon in Shanghai” as search keywords. The results show that the network attention of “weather in Shanghai” shows an overall upward trend from 2014 to 2016, with no significant variation from 2017 to 2021; The attention is mostly high in spring and summer, while low in early autumn and late winter; The weekly variation of the network attention is not obvious, with Monday experiencing relatively higher attention; In case of legal holidays, the attention peaks 2 to 4 days prior to the holiday, the change characteristics differ from each other within the holiday, and the high attention remains within 3 days after the holiday. The network attention of “high-temperature in Shanghai” shows the consistence of the variation trends between that of the public attention and of the daily maximum temperature; The high attention goes to the first 40 ℃ and the continuous high-temperature weather, with the start of the attention as early as the late June and the early July. The network attention of “typhoon in Shanghai” shows the consistence of the variation trends between that of the public attention and of the daily maximum wind speed and the daily precipitation; The start time of the attention matches with the start time of the typhoon; The attention of the typhoon increases gradually and rises significantly around 2 days prior to the strike of the typhoon itself. Finally, suggestions on how meteorological authorities can optimize public weather services, establish a meteorological public opinion database, and utilize new media for data dissemination are propose in hopes of providing a reference for meteorological services.