TY - JOUR
T1 - Local and global impacts on the fair-weather electric field in Israel
AU - Yaniv, Roy
AU - Yair, Yoav
AU - Price, Colin
AU - Katz, Shai
N1 - Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2016/5/15
Y1 - 2016/5/15
N2 - Ground-based measurements of the vertical electric field (Ez or potential gradient) during fair weather days in the Negev desert, southern Israel are presented for the period June 2013-July 2015. We show results of the diurnal variation of Ez on seasonal and annual time scales, and make comparisons with the well-known Carnegie curve. We show a positive correlation between the diurnal Ez values and the number of global thunderstorm clusters on the same days. However, the diurnal Ez curves observed in the Negev desert show a local morning peak (8-10 UT) that is missing from the Carnegie Curve, but observed in other land-based Ez data from around the world. The morning peak is assumed to be a local effect and shown to correlate with a peak in the local aerosol loading in the lower atmosphere due to the increase in turbulence and mixing caused by solar heating in the morning hours.
AB - Ground-based measurements of the vertical electric field (Ez or potential gradient) during fair weather days in the Negev desert, southern Israel are presented for the period June 2013-July 2015. We show results of the diurnal variation of Ez on seasonal and annual time scales, and make comparisons with the well-known Carnegie curve. We show a positive correlation between the diurnal Ez values and the number of global thunderstorm clusters on the same days. However, the diurnal Ez curves observed in the Negev desert show a local morning peak (8-10 UT) that is missing from the Carnegie Curve, but observed in other land-based Ez data from around the world. The morning peak is assumed to be a local effect and shown to correlate with a peak in the local aerosol loading in the lower atmosphere due to the increase in turbulence and mixing caused by solar heating in the morning hours.
KW - Carnegie curve
KW - Fair weather electricity
KW - Global electric circuit
UR - http://www.scopus.com/inward/record.url?scp=84955311271&partnerID=8YFLogxK
U2 - 10.1016/j.atmosres.2015.12.025
DO - 10.1016/j.atmosres.2015.12.025
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AN - SCOPUS:84955311271
SN - 0169-8095
VL - 172-173
SP - 119
EP - 125
JO - Atmospheric Research
JF - Atmospheric Research
ER -