Gravity Waved Volcanic Aerosols - Part 2
Taken by Peter Lowenstein on February 18, 2022 @
Mutare, Zimbabwe
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Camera Used: Panasonic DMC-TZ60
Exposure Time: 10/10000
Aperture: f/4.1
ISO: 160
Date Taken: 2022:02:21 23:30:00
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Details:
Mutare in Eastern Zimbabwe has been experiencing spectacular volcanic sunrises and sunsets since the arrival on 22nd January of a tropospheric sulphur dioxide plume and then volcanic aerosols ejected into the stratosphere by the massive Hunga-Tonga eruption on 15th January. Regular updates have been posted to the Spaceweather Realtime Image Gallery since January 23rd (id’s = 181824, 181877, 181982, 182058, 182128, 182327, 182358, 182380, 182436, 182478, 182494, & 182547). These present the most picturesque images so far taken but do not focus on very interesting and unusual wavy structures (ripples) that have been observed in some of the stratospheric volcanic aerosols overhead which may be due to gravity waves? These look similar to those described by S Palus in noctilucent clouds at https://eos.org/research-spotlights/clouds-visible-twilight-reveal-mysteries-gravity-waves. Evidence accumulated between the 7th and 18th February is presented in Parts 1 and 2 of this post and feedback would be appreciated on whether other observations of gravity wave disturbance in volcanic aerosols have been made. Cameras: Panasonic Lumix DMC-TZ60 and ZS40 in sunset and night scenery modes. Post-processing (adjustment of brightness and contrast) has been applied to some images to make the structures more clearly visible.
Photographer's website:
No URL provided.
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