干旱区生态环境知识资源中心(Arid): First results of the potential gradient variation in a tropical station in South America (Ica, Peru)

Arid

DOI	10.1016/j.jastp.2024.106198
	First results of the potential gradient variation in a tropical station in South America (Ica, Peru)
	Romero, Ruben; Tacza, Jose; Arroyo, Joseph; Prieto, Francis; Macotela, Liliana; Buleje, Yovanny; Loayza, Rene; Fernandez, Ulices; Raulin, Jean-Pierre
通讯作者	Romero, R
来源期刊	JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
ISSN	1364-6826
EISSN	1879-1824
出版年	2024
卷号	256
英文摘要	Measurements of the potential gradient (PG) under fair weather conditions at new locations are crucial for monitoring the global electric circuit. In this study, we analyzed the variations in PG recorded in Ica city, Peru, during the period from March 2018 to December 2022. Our analysis involved a detailed comparison of PG with various meteorological parameters such as rainfall, wind speed and direction, dust storms, dust devils and fog to establish the characteristic PG curve under fair weather conditions (referred to as the standard curve). We identified a significant threshold of 3.5 m/s for strong winds, which helps prevent the influence of sea breeze and dust lifting on PG. Our results showed the impact of 'Paracas' dust storms on PG, which aligns with patterns observed in other arid regions worldwide. Subsequently, we calculated monthly, seasonal, and annual averages of the standard curve which showed a response likely associated with local convective processes on the PG diurnal variation. Furthermore, the seasonal variation of PG reveals higher values during June, July, and August compared to December, January, and February. These differences are attributed to seasonal changes in aerosol concentrations, potentially influenced by biomass-burning activities in Peru. Additionally, we performed a wavelet transform analysis of PG hourly values. We found the periodicities of 1 day, similar to 188 days, and 360 days which are related to the diurnal, semiannual and annual periods. During the months between January and March 2018 was found an intense period of similar to 45-day likely associated with one of the strongest Madden-Julian Oscillation events. Through this comprehensive investigation, we deepen our understanding of the intricate relationships among meteorological conditions, sea breeze, dust storms, and the PG in arid regions like Ica.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001224649400001
WOS关键词	ATMOSPHERIC ELECTRIC-FIELD ; DUST STORMS ; ELECTRIFICATION
WOS类目	Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences
WOS研究方向	Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404390
推荐引用方式 GB/T 7714	Romero, Ruben,Tacza, Jose,Arroyo, Joseph,et al. First results of the potential gradient variation in a tropical station in South America (Ica, Peru)[J],2024,256.
APA	Romero, Ruben.,Tacza, Jose.,Arroyo, Joseph.,Prieto, Francis.,Macotela, Liliana.,...&Raulin, Jean-Pierre.(2024).First results of the potential gradient variation in a tropical station in South America (Ica, Peru).JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,256.
MLA	Romero, Ruben,et al."First results of the potential gradient variation in a tropical station in South America (Ica, Peru)".JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 256(2024).