Spectral response of atmospheric electric field measurements near AC high voltage power lines

Electrostatics 2015

物理学;数学

Silva, H.G.^1,2 ; Matthews, J.C.^1 ; Wright, M.D.^1 ; Shallcross, D.E.^1

Atmospheric Chemistry Research Group, University of Bristol, Cantock's Close, Bristol

BS8 ITS, United Kingdom^1

Departamento de Fásica, ECT, Instituto de Ciências da Terra, IIFA, Universidade de Évora, Rua Romão Ramalho 59, Évora

7002-554, Portugal^2

关键词: Atmospheric electric field;    Electrical field;    High-voltage power line;    Ion emissions;    Meteorological measurements;    Spectral response;    Unevenly-spaced time series;    Wind directions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/646/1/012014/pdf
DOI  :  10.1088/1742-6596/646/1/012014

来源: IOP

【 摘 要 】

To understand the influence of corona ion emission on the atmospheric electrical field, measurements were made near to two AC high voltage power lines. A JCI 131 field-mill recorded the atmospheric electric field over one year. Meteorological measurements were also taken. The data series is divided in four zones (dependent on wind direction): whole zones, Z0; zone 1, Z1; zone 2, Z2; zone 3, Z3. Z3is the least affected by corona ion emission and for that reason it is used as a reference against Z1and Z2, which are strongly influenced by this phenomena. Analysis was undertaken for all weather days and dry days only. The Lomb-Scargle strategy developed for unevenly spaced time-series is used to calculate the spectral response of the aforementioned zones. Only frequencies above 1 minute are considered.