干旱气象 ›› 2019, Vol. 37 ›› Issue (4): 639-647.

• 论文 • 上一篇    下一篇

2016—2017年河北省高速公路沿线低能见度变化特征

吴丹1,柳泉2,范俊红1,贾小卫1,郭蕊1,李美琪1   

  1. (1.河北省气象服务中心,河北石家庄050021;
    2.中国民用航空华北地区空中交通管理局河北分局,河北石家庄050802)
  • 出版日期:2019-08-30 发布日期:2019-09-04
  • 作者简介:吴丹(1990— )女,硕士,主要从事专业气象服务. E-mail:wudan9009@163.com。
  • 基金资助:
    河北省气象局创新团队“交通气象服务技术研发及应用”和河北省气象局科研开发项目(18ky13)共同资助

Change Characteristic of  Low Visibility Along Highways  in Hebei Province During 2016-2017#br#

WU Dan1, LIU Quan2, FAN Junhong1, JIA Xiaowei1, GUO Rui1, LI Meiqi1#br#   

  1. (1. Hebei Meteorological Service Center,Shijiazhuang 050021, China;
    2. Hebei Branch of North Air Traffic Management Bureau, CAAC, Shijiazhuang 050802, China)
  • Online:2019-08-30 Published:2019-09-04

摘要: 利用2016—2017年河北省61个国家站逐时最小能见度、降水和相对湿度资料,对河北省8条主要高速公路沿线低能见度特征进行分析。结果表明:秋冬季低能见度出现频次最多,春季最少。秋冬季,02:00—03:00、03:00—07:00、05:00分别为200~500 m、50~200 m和0~50 m低能见度出现的高峰期;大广高速(京衡段和衡大段)、石安高速、青银高速出现3种低能见度的频次都较高,京秦和沿海高速较低。对于200~500 m低能见度,大部分高速出现在20:00至次日07:00,大广高速衡大段、石安高速、青银高速在00:00之后出现频次更高,京秦高速则与之相反;对于50~200 m低能见度,04:00—07:00是大广高速京衡段和青银高速高发时段,京沪和石黄高速05:00—08:00出现较多,石安高速03:00—07:00出现频次峰值;对于0~50 m低能见度,各高速出现频次明显降低,大广高速京衡段的饶阳至安平段在00:00和05:00出现频次峰值,衡大段主要出现在03:00—07:00,石黄高速泊头段相比其他路段更易出现。

关键词: 高速, 低能见度, 频次

Abstract:

Based on the hourly minimum visibility, precipitation and relative humidity of 61 national meteorological stations during the period 2016-2017, the characteristics of low visibility along eight main highways in Hebei Province were investigated. The results show that low visibility appeared most in autumn and winter while least in spring. In autumn and winter, the 02:00-03:00, 03:00-07:00, 05:00 were the peak hours for the appearance of  low visibility of 200-500 m, 50-200 m and 0-50 m, respectively. The frequency of  low visibility along Daqing-Guangzhou highway (Beijing-Hengshui section and Hengshui-Daming section), Shijiazhuang-Anyang highway and Qingdao-Yinchuan highway was higher, while it was lower along Beijing-Qinhuangdao highway and Coastal highway. The low visibility of 200-500 m usually appeared from 20:00 to 07:00. The frequency of low visibility of 200-500 m along Hengshui-Daming section, Shijiazhuang-Anyang highway and Qingdao-Yinchuan highway was higher after 00:00, while it was opposite for Beijing-Qinhuangdao highway. The visibility of 50-200 m along Beijing-Hengshui section and Qingdao-Yinchuan highway occured mainly during 04:00-07:00, and it occured maily during 05:00-08:00 along Beijing-Shanghai highway and Shijiazhuang-Huanghua highway. The peak time of frequency of the visibility of 50-200 m occured during 03:00-07:00 along Shijiazhuang-Anyang highway. The frequency of the visibility of 0-50 m along various highways decreased significantly.The peak value of low visibility of 0-50 m occured mainly at 00:00 and 05:00 along Beijing-Hengshui section(Raoyang-Anping section), while it occurred during 03:00-07:00 along Hengshui-Daming section. The low visibility of 0-50 m was easier  to  occure along Botou section of Shijiazhuang-Huanghua highway than other sections  of  that.

Key words: highway, low visibility, frequency