Observation of wind shear during evening transition and an estimation of submicron aerosol concentrations in Beijing using a Doppler wind lidar
作者: Yong ChenJunling AnXiquan WangYele SunZifa WangJing Duan
作者单位: 1Chinese Academy of Sciences
2Chinese Academy of Meteorological Sciences
刊名: Journal of Meteorological Research, 2017, Vol.31 (2), pp.350-362
来源数据库: Springer Nature Journal
DOI: 10.1007/s13351-017-6036-3
关键词: Mountain–plain windWind shearWind lidarPM1
英文摘要: The wind speed and direction measured over six months by a Doppler wind lidar (Windcube-8) were compared with wind cup anemometers mounted on the 325-m Beijing meteorological tower (BMT). Five mountain–plain wind cases characterized by wind direction shear were selected based on the high-frequency (1.1 s) wind profile of the Windcube-8 and analyzed with 1-h mesoscale surface weather charts. Also analyzed was the relationship between in-situ PM1 (aerodynamic diameter ≤ 1 μm) concentrations measured at 260 m on BMT and the carrier-to-noise ratio (CNR) of the co-located Windcube-8. The results showed that the 10-min averaged wind speed and direction were highly correlated ( R = 0.96–0.99) at three matched levels (80, 140, and 200 m). The evening transition duration was 1–3 h, with...
原始语种摘要: The wind speed and direction measured over six months by a Doppler wind lidar (Windcube-8) were compared with wind cup anemometers mounted on the 325-m Beijing meteorological tower (BMT). Five mountain–plain wind cases characterized by wind direction shear were selected based on the high-frequency (1.1 s) wind profile of the Windcube-8 and analyzed with 1-h mesoscale surface weather charts. Also analyzed was the relationship between in-situ PM1 (aerodynamic diameter ≤ 1 μm) concentrations measured at 260 m on BMT and the carrier-to-noise ratio (CNR) of the co-located Windcube-8. The results showed that the 10-min averaged wind speed and direction were highly correlated ( R = 0.96–0.99) at three matched levels (80, 140, and 200 m). The evening transition duration was 1–3 h, with...
全文获取路径: Springer Nature  (合作)
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关键词翻译
关键词翻译
  • submicron 亚微米
  • lidar 激光
  • transition 转移
  • Doppler 多普勒
  • shear 切变
  • Kelvin 开尔文
  • evening 晚上
  • measured 量过的
  • horizontal 水平线
  • concentrations 浓聚物