气候变化领域集成服务门户(CCPortal): Temporal variations of the conduction current density during fair weather days in Israel

CCPortal

DOI	10.1016/j.atmosres.2019.02.003
	Temporal variations of the conduction current density during fair weather days in Israel
	Yaniv R.; Reuveni Y.; Yair Y.; Lynn B.
发表日期	2019
ISSN	0169-8095
起始页码	1
结束页码	11
卷号	222
英文摘要	Ground-based measurements of the atmospheric conduction current density were conducted on Mount Hermon in northern Israel (33°18′N 35°47.2′E, 2050 m a.s.l). The aim was to measure the conduction current diurnal behavior during days that are defined meteorologically as fair weather days. Results from 86 selected fair weather days show an average value of 0.9 pA/m 2 downward, and a double oscillation behavior of the conduction current density with two maxima – a morning peak due to local effect and an evening peak due to global effect, with lower values in between. Fourier transform analysis applied to the continuous data shows the two maxima peaks under the daily background level. The conduction current density, together with the fair weather vertical electric field was used to calculate the fair weather mean conductivity behavior (based on Ohm's law). The conductivity shows minimum values during local noon hours when the station is assumed to be within the boundary layer and high conductivity values during the night hours when the station is above the boundary layer. This is likely due to the respective diurnal changes in concentrations of aerosol particles. A WRF simulation of a single fair weather day was conducted in order to determine the meteorological regime and the boundary layer height and is presented to support the hypothesis that conductivity values depend, at least in part, on the height of the boundary layer relative to the station. © 2019
语种	英语
scopus关键词	Boundary layer flow; Current density; Electric fields; Aerosol particles; Boundary layer heights; Conduction current; Fourier transform analysis; Ground based measurement; Oscillation behavior; Temporal variation; Vertical electric fields; Boundary layers; aerosol; atmospheric electricity; boundary layer; climate conditions; electrical conductivity; ground-based measurement; temporal variation; Mount Hermon
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162313
作者单位	Department of Physics, Ariel University, Ariel, Israel; Eastern R&D Center, Ariel, Israel; School of Sustainability, Interdisciplinary Center (IDC) Herzliya, Israel; Weather it is, LTD, Efrat, Israel
推荐引用方式 GB/T 7714	Yaniv R.,Reuveni Y.,Yair Y.,et al. Temporal variations of the conduction current density during fair weather days in Israel[J],2019,222.
APA	Yaniv R.,Reuveni Y.,Yair Y.,&Lynn B..(2019).Temporal variations of the conduction current density during fair weather days in Israel.Atmospheric Research,222.
MLA	Yaniv R.,et al."Temporal variations of the conduction current density during fair weather days in Israel".Atmospheric Research 222(2019).