Volcán Etna: humo (vapor) anillos de cráter de nuevo SE

(más videos | más fotos)Después del violento paroxismo durante 10-11 de noviembre de 2013, el cráter de nuevo SE continuó produciendo explosiones regulares y, para nuestra gran sorpresa, pudimos observar durante la tarde del 11 de noviembre, que a menudo hizo anillos fantástico vórtice (anillos de vapor o "anillos de humo") que volaron hacia el este por la Ponente fuerte.
Lo más probable es la erupción había cambiado la morfología de la rejilla de ventilación en una forma (en una forma particularmente bien circular forma?) que le permitió producir este fenómeno raro. Y siendo Etna, exagera: no sólo un anillo cada ahora y después, pero ella hizo decenas si no centenares durante unas horas, a menudo en una fila.
La tarde siguiente (12 Nov), las laderas superiores de Etna son todos blancas de nieve. La fase principal del paroxismo terminó, pero las explosiones cada minuto o así continuar en el NS. Curiosamente, muchos de ellos producen vapor anillos, a menudo en una fila. (Photo: Tom Pfeiffer)
La tarde siguiente (12 Nov), las laderas superiores de Etna son todos blancas de nieve. La fase prin... [info]
(3687 Éxitos)
Ponente de fuerte viento empuja una espesa nube sobre la parte occidental del volcán, pero deja a las claras del Valle del Bove. Un anillo de vapor se desplaza en el cielo. (Photo: Tom Pfeiffer)
Ponente de fuerte viento empuja una espesa nube sobre la parte occidental del volcán, pero deja a la... [info]
(2804 Éxitos)
Un vórtice de anillo perfectamente circular vapor se separa de la pluma de vapor de la explosión que lo creó. (Photo: Tom Pfeiffer)
Un vórtice de anillo perfectamente circular vapor se separa de la pluma de vapor de la explosión que... [info]
(3250 Éxitos)
Zoom onto the rotating steam ring. (Photo: Tom Pfeiffer)
Zoom onto the rotating steam ring. (Photo: Tom Pfeiffer) [info]
(4630 Éxitos)
Another perfect ring in the sky. Its diameter is probably about 100 meters. (Photo: Tom Pfeiffer)
Another perfect ring in the sky. Its diameter is probably about 100 meters. (Photo: Tom Pfeiffer) [info]
(7681 Éxitos)
A freshly "born" steam ring (right) drifts ahead of another one in the making (left). (Photo: Tom Pfeiffer)
A freshly "born" steam ring (right) drifts ahead of another one in the making (left). (Photo: Tom Pf... [info]
(3538 Éxitos)
The rotation of the vortex can be seen in this picture in the sideways perspective of another steam ring. (Photo: Tom Pfeiffer)
The rotation of the vortex can be seen in this picture in the sideways perspective of another steam ... [info]
(2994 Éxitos)
Not all rings are perfectly flat. This one is more irregular. (Photo: Tom Pfeiffer)
Not all rings are perfectly flat. This one is more irregular. (Photo: Tom Pfeiffer) [info]
(2878 Éxitos)
"Failed attempt" (right) and successful blow-out plume from two explosions. See the result in the next picture. (Photo: Tom Pfeiffer)
"Failed attempt" (right) and successful blow-out plume from two explosions. See the result in the ne... [info]
(2642 Éxitos)
The "successful plume" has the right motion and geometry to produce a vortex that detaches and keeps stable, despite the strong wind that disperses the other steam plumes quickly. (Photo: Tom Pfeiffer)
The "successful plume" has the right motion and geometry to produce a vortex that detaches and keeps... [info]
(2421 Éxitos)
Very narrow and irregular vortext ring. (Photo: Tom Pfeiffer)
Very narrow and irregular vortext ring. (Photo: Tom Pfeiffer) [info]
(2462 Éxitos)
The New SE crater itself is only rarely visible. Here, it just had produced two explosions, each creating rings. (Photo: Tom Pfeiffer)
The New SE crater itself is only rarely visible. Here, it just had produced two explosions, each cre... [info]
(2323 Éxitos)
Sometimes, several rings (each from a small explosion) drift eastwards over the Valle del Bove in a row. (Photo: Tom Pfeiffer)
Sometimes, several rings (each from a small explosion) drift eastwards over the Valle del Bove in a ... [info]
(2209 Éxitos)
A "smaller" (but still tens of meters wide) ring in the sky. (Photo: Tom Pfeiffer)
A "smaller" (but still tens of meters wide) ring in the sky. (Photo: Tom Pfeiffer) [info]
(2933 Éxitos)
Two steam rings. (Photo: Tom Pfeiffer)
Two steam rings. (Photo: Tom Pfeiffer) [info]
(1848 Éxitos)
A large steam ring at night with the erupting New SE crater and the starry sky above Valle del Bove. (Photo: Tom Pfeiffer)
A large steam ring at night with the erupting New SE crater and the starry sky above Valle del Bove.... [info]
(4127 Éxitos)
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