کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8081788 | 1521576 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Long-range atmospheric transport Beryllium-7 to region the Sea of Japan
ترجمه فارسی عنوان
حمل و نقل اتمسفری دوربرد بریلیم -7 به منطقه دریای ژاپن
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کلمات کلیدی
آئروسل ها، بریلیم 7، حمل و نقل جوی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
چکیده انگلیسی
Concentrations of cosmogenic beryllium-7(7Be) and atmospheric aerosols were measured in the atmosphere of the coastal zone of Vladivostok in 2013-2014. The 7Be concentrations ranged from 0.5 to 4.1 mBq/m3, with the lowest values in summer and the highest in spring and autumn; the mean value was 2.2 mBq/m3. Analysis of meteorological data in the synoptic scale showed an inverse correlation with wet deposition rates R = â0.55 (p = 0.0001) and H2O mixing ratio R = â0.49 (p = 0.0001) and a positive with an average maximum height of 120-h backward trajectories of air masses R = 0.65 (p = 0.0001). Angular cluster analysis showed the 7Be concentration to be dependent on the north-western (R = 0.53, p = 0.001) and eastern winds (R = â0.7, p = 0.0001 for 2013 and R = â0.49, p = 0.002 for 2014). The multiple regression analysis identified five factors in 7Be concentration: altitudes (b = 0.44), air temperature (b = 0.36), a portion of trajectories in the pacific (North-East direction) cluster (b = â0.32), aerosol concentrations (b = 0.28) and wet precipitation rates (b = â0.24). The model has a good correlation with the data (adjusted R2 = 0.55). It was found that the direction and height of the air masses trajectories in the lower troposphere strongly influence the concentration of 7Be.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Radioactivity - Volume 160, August 2016, Pages 102-111
Journal: Journal of Environmental Radioactivity - Volume 160, August 2016, Pages 102-111
نویسندگان
Andrey S. Neroda, Anna A. Goncharova, Vladimir A. Goryachev, Vasily F. Mishukov, Natalia V. Shlyk,