Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-19-0032.1 |
Coastal Sea Salt Chlorine Deposition Linked to Intertropical Convergence Zone (ITCZ) Oscillation in French Guiana | |
Gobinddass, M. L.1,2; Molinie, J.3; Richard, S.4; Panechou, K.5; Jeannot, A.5; Jean-Louis, S.5 | |
2020-05-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES |
ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2020 |
卷号 | 77期号:5页码:1723-1731 |
文章类型 | Article |
语种 | 英语 |
国家 | France; French Guiana |
英文摘要 | Sea salt chloride is a major component of atmospheric aerosol and its behavior is an essential element in determining the climate. Two atmospheric chlorine deposition measurement procedures were performed between 2004 and 2008 by the French Guiana Regional Air Observatory (ORA), in the coastal plain of Sinnamary. The main goal was to determine the background spatial distribution of marine chlorine in order to evaluate the impact of Ariane rocket hydrogen chloride emission. To determine the chlorine concentration level, weekly samples from 10 sites were analyzed. A seasonal pattern was identified. For every site, a high sea salt chlorine deposition level was observed from December to April and a low level from July to October. The ratio of high to low mean chloride concentration R-HC/LC shows that just under half of the variation in chlorine deposition can be linked to the variation of sea salt production with low-level wind speed. Equations relating mean sea salt chlorine concentration and the distance to shore were studied, taking into account parameters found in other tropical regions, with a focus on neighboring Brazil. The wind rotation between the two seasons, and the sea salt chlorine loss per kilometer equation found for dry deposition, were used to calculate R-HC/LC. It appears that the observed rotation (60 degrees) explains 88% of R-HC/LC. Finally, inland sea salt chlorine deposition behavior in this region was linked to intertropical convergence zone oscillation through variations in wind speed and direction. |
英文关键词 | Aerosols particulates Air quality Air-sea interaction Atmospheric composition Marine chemistry |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000535703800011 |
WOS关键词 | ATMOSPHERIC CORROSION ; MARINE AEROSOLS ; DRY DEPOSITION ; SALINITY ; DISTANCE ; AREA |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/280340 |
专题 | 地球科学 |
作者单位 | 1.Univ Reunion, Univ Guyane, Univ Antilles, UMR Espace DEV,Univ Montpellier,IRD, Montpellier, France; 2.Univ Reunion, Univ Antilles, Univ Montpellier, UMR Espace DEV,Univ Guyane,IRD, Cayenne, France; 3.Univ Antilles, Lab Res Geosci & Energies, Campus Fouillole, Pointe A Pitre, Guadeloupe, France; 4.Ctr Natl Etud Spatiale, Kourou, French Guiana; 5.Atmo Guyane Degrad Cannes, Remire Montjoly, French Guiana |
推荐引用方式 GB/T 7714 | Gobinddass, M. L.,Molinie, J.,Richard, S.,et al. Coastal Sea Salt Chlorine Deposition Linked to Intertropical Convergence Zone (ITCZ) Oscillation in French Guiana[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2020,77(5):1723-1731. |
APA | Gobinddass, M. L.,Molinie, J.,Richard, S.,Panechou, K.,Jeannot, A.,&Jean-Louis, S..(2020).Coastal Sea Salt Chlorine Deposition Linked to Intertropical Convergence Zone (ITCZ) Oscillation in French Guiana.JOURNAL OF THE ATMOSPHERIC SCIENCES,77(5),1723-1731. |
MLA | Gobinddass, M. L.,et al."Coastal Sea Salt Chlorine Deposition Linked to Intertropical Convergence Zone (ITCZ) Oscillation in French Guiana".JOURNAL OF THE ATMOSPHERIC SCIENCES 77.5(2020):1723-1731. |
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