DOI: 10.1016/j.atmosres.2018.01.022
Scopus记录号: 2-s2.0-85044384303
论文题名: Remote sensing of the lightning heating effect duration with ground-based microwave radiometer
作者: Jiang S. ; Pan Y. ; Lei L. ; Ma L. ; Li Q. ; Wang Z.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 205 起始页码: 26
结束页码: 32
语种: 英语
英文关键词: Brightness temperature pulse
; Ground-based microwave radiometer
; Lightning heating effect duration
Scopus关键词: Heating
; Luminance
; Microwave antennas
; Microwave measurement
; Microwaves
; Radiometers
; Remote sensing
; Temperature
; Time series analysis
; Artificially triggered lightning
; Brightness temperatures
; Discharging paths
; Elevation angle
; Field experiment
; Heating effect
; Microwave radiometers
; Sampling interval
; Lightning
英文摘要: Artificially triggered lightning events from May 26, 2017 to July 16, 2017 in Guangzhou Field Experiment Site for Lightning Research and Test (GFESL) were intentionally remotely sensed with a ground-based microwave radiometer for the first time in order to obtain the features of lightning heating effect. The microwave radiometer antenna was adjusted to point at a certain elevation angle towards the expected artificially triggered lightning discharging path. Eight of the 16 successfully artificially triggered lightning events were captured and the brightness temperature data at four frequencies in K and V bands were obtained. The results from data time series analysis show that artificially triggered lightning can make the radiometer generate brightness temperature pulses, and the amplitudes of these pulses are in the range of 2.0 K to 73.8 K. The brightness temperature pulses associated with 7 events can be used to estimate the duration of lightning heating effect through accounting the number of the pulses in the continuous pulse sequence and the sampling interval between four frequencies. The maximum duration of the lightning heating effect is 1.13 s, the minimum is 0.172 s, and the average is 0.63 s. © 2018 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/108917
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
There are no files associated with this item.
作者单位: Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, CMA Key Laboratory for Aerosol-Cloud-Precipitation, Nanjing University of Information Science & Technology, Nanjing, 210044, China; School of Atmospheric Physics, Nanjing University of Information Science & Technology, Nanjing, 210044, China; Xi'an Electronic Engineering Research Institute, Xi'an, 710100, China
Recommended Citation:
Jiang S.,Pan Y.,Lei L.,et al. Remote sensing of the lightning heating effect duration with ground-based microwave radiometer[J]. Atmospheric Research,2018-01-01,205