Biogenic sulfur emissions and aerosols over the tropical South Atlantic: 2. One-dimensional simulation of sulfur chemistry in the marine boundary layer

1995 ◽  
Vol 100 (D6) ◽  
pp. 11323 ◽  
Author(s):  
K. Suhre ◽  
M. O. Andreae ◽  
R. Rosset
Keyword(s):  
Boundary Layer ◽  
Marine Boundary Layer ◽  
South Atlantic ◽  
Sulfur Chemistry ◽  
One Dimensional ◽  
Dimensional Simulation ◽  
Sulfur Emissions

Variability of the atmospheric electric field in the South Atlantic marine boundary layer from the SAIL campaign

2021 ◽  
Author(s):  
Susana Barbosa ◽  
Mauricio Camilo ◽  
Carlos Almeida ◽  
Guilherme Amaral ◽  
Nuno Dias ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Electric Field ◽  
Buenos Aires ◽  
Marine Boundary Layer ◽  
South Atlantic ◽  
Atmospheric Electric Field ◽  
Surface Ionization ◽  
Diurnal Pattern ◽  
The South ◽  
Near Surface

<p>The marine boundary layer offers a unique opportunity to investigate the electrical properties of the atmosphere, as the effect of natural radioactivity in driving near surface ionization is significantly reduced over the ocean, and the concentration of aerosols is also typically lower than over land. This work addresses the temporal variability of the atmospheric electric field in the South Atlantic marine boundary layer based on measurements from the SAIL (Space-Atmosphere-Ocean Interactions in the marine boundary Layer) project. The SAIL monitoring campaign took place on board the Portuguese navy tall ship NRP Sagres during its circumnavigation expedition in 2020.  Two identical field mills (CS110, Campbell Scientific) were installed on the same mast but at different heights (about 5 and 22 meters), recording the atmospheric electric field every 1-second. Hourly averages of the atmospheric electric field are analyzed for the ship’s leg from 3<sup>rd</sup> to 25<sup>th</sup> March, between Buenos Aires (South America) and Cape Town (South Africa). The median daily curve of the electric field has a shape compatible with the Carnegie curve, but significant variability is found in the daily pattern of individual days, with only about 30% of the days exhibiting a diurnal pattern consistent with the Carnegie curve.</p>

scholarly journals Ozone, hydroperoxides, oxides of nitrogen, and hydrocarbon budgets in the marine boundary layer over the South Atlantic

1996 ◽  
Vol 101 (D19) ◽  
pp. 24221-24234 ◽  
Author(s):  
Brian Heikes ◽  
Meehye Lee ◽  
Daniel Jacob ◽  
Robert Talbot ◽  
John Bradshaw ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Marine Boundary Layer ◽  
South Atlantic ◽  
Oxides Of Nitrogen ◽  
The South
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