DOI: 10.1002/2013JD020346
论文题名: The potential of commercial microwave networks to monitor dense fog-feasibility study
作者: David N. ; Alpert P. ; Messer H.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 20 起始页码: 11750
结束页码: 11761
语种: 英语
英文关键词: attenuation
; commercial microwave links
; fog
; liquid water content
; visibility
Scopus关键词: Communication systems
; Liquids
; Microwave links
; Planning
; Sensor networks
; Visibility
; attenuation
; Concentration values
; Feasibility studies
; Intensity estimation
; Liquid water content
; Measuring equipments
; Visibility assessment
; Wireless communication system
; Fog
; communication network
; feasibility study
; fog
; liquid
; microwave radiation
; mobile communication
; visibility
; Israel
英文摘要: Here we show the potential for dense fog monitoring using existing measurements from wireless communication systems. Communication networks widely deploy commercial microwave links across the terrain at ground level. Operating at frequencies of tens of gigahertz, they are affected by fog and are, practically, an existing, sensor network, spatially distributed worldwide, which can provide crucial information about fog concentration and visibility. The goal of this paper is to show the feasibility for fog identification and intensity estimation. A method is proposed and is demonstrated by two cases of heavy fog that took place in Israel. During these events, fog covered wide areas (tens of kilometers) and caused severe decrease in visibility, dropping as low as several tens of meters. Liquid water content and visibility values were estimated using measurements from tens of microwave links deployed in the observed area for each event. Each of the links provided a single measurement which was taken simultaneously across all of the links in the system. The values were found to be in the range of 0.5-0.8 gr/m3, high concentration values that match the maximum value range observed in field measurements carried out for prior studies in different test areas in the world. The visibility ranges calculated, between 30 and 70 m, fit the visibility assessments from the specialized measuring equipment operating in the observed area at the same time. These results point to the strong potential of the proposed technique. Key Points Fog affects commercial microwave networks by causing attenuation to the radio beams Measurements from these networks provide an opportunistic monitoring facility A feasibility study showing the potential for dense fog monitoring is presented ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63207
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Department of Geophysical, Atmospheric and Planetary Sciences, Tel Aviv University, Tel Aviv 69978, Israel; Porter School of Environmental Studies, Department of Geophysical Atmospheric and Planetary Sciences, Tel Aviv University, Tel Aviv, Israel; School of Electrical Engineering, Tel Aviv University, Tel Aviv, Israel
Recommended Citation:
David N.,Alpert P.,Messer H.. The potential of commercial microwave networks to monitor dense fog-feasibility study[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(20)