کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6439642 | 1638323 | 2015 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hazard of pyroclastic density currents at the Campi Flegrei Caldera (Southern Italy) as deduced from the combined use of facies architecture, physical modeling and statistics of the impact parameters
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
ژئوشیمی و پترولوژی
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چکیده انگلیسی
The particle volumetric concentration at a height of 2Â m within the current is always lower than 0.01, but typically it is higher than 0.001 inside the caldera, and could have severe effects on the unsheltered population, also at locations (topographic highs) where velocity and dynamic pressures are low. In distal reaches outside the caldera the widespread fine ash originated by buoyancy from the currents, which was transported by lower atmosphere winds, is to be considered as a “fallout load” slowly accumulating on the ground surface (and building roofs) during the waning stage of the current.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Volcanology and Geothermal Research - Volume 299, 15 June 2015, Pages 35-53
Journal: Journal of Volcanology and Geothermal Research - Volume 299, 15 June 2015, Pages 35-53
نویسندگان
D. Mele, F. Dioguardi, P. Dellino, R. Isaia, R. Sulpizio, G. Braia,