کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4450280 1620556 2012 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Aerosol size distribution at Nansen Ice Sheet Antarctica
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علم هواشناسی
پیش نمایش صفحه اول مقاله
Aerosol size distribution at Nansen Ice Sheet Antarctica
چکیده انگلیسی

During austral summer 2006, in the framework of the XXII Italian Antarctic expedition of PNRA (Italian National Program for Research in Antarctica), aerosol particle number size distribution measurements were performed in the 10–500 range nm over the Nansen Ice Sheet glacier (NIS, 74°30′ S, 163°27′ E; 85 m a.s.l), a permanently iced branch of the Ross Sea. Observed total particle number concentrations varied between 169 and 1385 cm− 3. A monomodal number size distribution, peaking at about 70 nm with no variation during the day, was observed for continental air mass, high wind speed and low relative humidity. Trimodal number size distributions were also observed, in agreement with measurements performed at Aboa station, which is located on the opposite side of the Antarctic continent to the NIS. In this case new particle formation, with subsequent particle growth up to about 30 nm, was observed even if not associated with maritime air masses.


► Aerosol size distributions at Nansen Ice Sheet (Antarctica) were measured.
► A nucleation event has been observed.
► Aitken and accumulation mode concentrations were nearly the same in all the cases.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atmospheric Research - Volume 107, April 2012, Pages 42–50
نویسندگان
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