| 摘要: |
| 利用2010—2021年福州市地面最大风资料，结合统计和图示法，分析逐时最大风速及对应风向时空分布特征。结果表明：福州市地面逐时最大风速年均值呈减小趋势，静风次数明显增多。月均值呈双峰型，5月最小，10月最大；日变化为单峰型。分风向均值最大为NNE，最小为W。年概率最大风向是NE，最小是W。6—7月主导风向为S，其余月份主导风向为NE。空间分布地域性和季节性明显，高海拔区和沿海南部是风速均值大值分布区，有明显年份突增，且多在中午到傍晚出现。西南地区和罗源湾附近静风占比较高，闽江流域是SW-NW高发区。1月和10—12月风向较一致，2—6月和9月风向较散乱。 |
| 关键词: 地面最大风；逐时最大风速；对应风向；时空分布；福州 |
| DOI： |
| 投稿时间：2023-02-07 |
| 基金项目:福州市级科技计划项目（2021-S-257） |
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| Temporal and Spatial Distribution Characteristics of Hourly Maximum Wind over Fuzhou |
| YAO Linta,ZHENG Yingqing,LIN Lixuan,ZHANG Mingjun,LAI Shaojun,LIN Chunyan |
| (Fuzhou Meteorological Bureau of Fujian Province, Fuzhou 350008 , China;Changle Meteorological Bureau of Fujian Province, Changle 350200 , China;Minhou Meteorological Bureau of Fujian Province, Minhou 350199 , China) |
| Abstract: |
| Based on the data of maximum wind speed on the ground in Fuzhou from 2010 to 2021, the spatial and temporal distribution characteristics of hourly maximum wind speed and corresponding wind direction were analyzed by combining statistics and graphic methods. The results show that the annual average hourly maximum wind speed on the ground in Fuzhou shows a decreasing trend, while the number of quiet winds increases significantly. The monthly mean value showed a bimodal pattern, with the minimum value in May and the maximum value in October. The diurnal variation was unimodal. The maximum value of the wind direction is NNE and the minimum value is W. The maximum annual probability of wind direction is NE and the minimum is W. The dominant wind direction is S in June and July, and NE in other months. The spatial distribution is regional and seasonal. The high altitude area and the southern coastal area are the distribution areas of the mean large value of wind speed, and there is an obvious year surge, and most of them appear in the noon to evening. In the southwest and near Luoyuan Bay, the static wind is relatively high, and the Minjiang River basin is a high incidence area of SW-NW. Winds are more consistent in January and October to December, and more scattered in February to June and September. |
| Key words: maximum surface wind； hourly maximum wind speed； corresponding wind direction； spatial and temporal distribution； Fuzhou |
