首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Saharan dust electrification perceived by a triangle of atmospheric electricity stations in Southern Portugal
Institution:1. Renewable Energies Chair, University of Évora, IIFA, Palácio do Vimioso, Largo Marquês de Marialva, 7002-554, Évora, Portugal;2. Departamento de Física, ICT, Instituto de Ciências da Terra, Universidade de Évora, Rua Romão Ramalho 59, 7002-554, Évora, Portugal;3. Department of Meteorology, University of Reading, Berkshire, RG6 6BB, UK;4. INESC TEC – INESC Technology and Science, Campus da FEUP, Rua Dr Roberto Frias, 4200-465, Porto, Portugal;1. Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation (IZMIRAN), Russian Academy of Sciences, Troitsk Town, Moscow 142190, Russia;2. The University of Electro-Communications (UEC), Advanced Wireless Communications Research Center (AWCC), 1-5-1 Chofugaoka, Chofu Tokyo 182-8585, Japan;1. Department of Geophysics, Arctic and Antarctic Research Institute, 38, Bering str., St. Petersburg 199397, Russia;2. University of Leicester, Department of Physics and Astronomy, Leicester LE1 7RH, UK;3. EISCAT Scientific Association, Kiruna, SE-961 28, Sweden;1. Department of Physics, Yogi Vemana University, Vemanapuram, Kadapa 516003, Andhra Pradesh, India;2. Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan;3. Institute of Space Science, National Central University, Jhongli, Taiwan;1. Department of Physics, Gauhati University, Guwahti 781014, Assam, India;2. Space Science Plasma Centre/Institute of Astrophysics and Space Science, National Cheng Kung University, Tainan, Taiwan;3. Department of Earth Science, National Cheng Kung University, Tainan, Taiwan;1. Department of Ophthalmology and Visual Sciences, Chinese University of Hong Kong, Hong Kong;2. Wright Foundation for Pediatric Ophthalmology and Strabismus, Los Angeles, California;1. Dpt. Physics, Faculty of Natural Sciences, University of Shkodra, Shkoder, Albania;2. Andalusian Institute for Earth System Research (IISTA-CEAMA), Granada, Spain;3. Dpt. Applied Physics, University of Granada, Granada, Spain
Abstract:Atmospheric Electric Potential Gradient (PG) measurements were carried out in three sites forming a triangular array in Southern Portugal. The campaign was performed during the summer, characterized by Saharan dust outbreaks; 16th–17th July 2014 dust event is considered. Short time-scale oscillations of the PG at two of the stations and a mid time-scale suppression of the PG in the three stations are found. Results are interpreted as evidencing long-range dust electrification; attributed to the air-Earth electrical current creating a bipolar charge distribution inside of the dust layer. The relevance of using arrays of sensors, instead of single sited, is highlighted.
Keywords:Desert dust electrification  Atmospheric electric potential gradient  Sensors array  Wavelet analysis
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号