Extended observations of volcanic SO2 and sulfate aerosol in the stratosphere
Item
Title (Dublin Core)
Extended observations of volcanic SO2 and sulfate aerosol in the stratosphere
Description (Dublin Core)
Sulfate aerosol produced after injection of sulfur dioxide (SO<sub>2</sub>) into the stratosphere by volcanic eruptions can trigger climate change. We present new satellite data from the Ozone Monitoring Instrument (OMI) and Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) missions that reveal the composition, structure and longevity of a stratospheric SO<sub>2</sub> cloud and derived sulfate layer following a modest eruption (0.2 Tg total SO<sub>2</sub>) of Soufriere Hills volcano, Montserrat on 20 May 2006. The SO<sub>2</sub> cloud alone was tracked for over 3 weeks and a distance of over 20 000 km; unprecedented for an eruption of this size. Derived sulfate aerosol at an altitude of ~20 km had circled the globe by 22 June and remained visible in CALIPSO data until at least 6 July. These synergistic NASA A-Train observations permit a new appreciation of the potential effects of frequent, small-to-moderate volcanic eruptions on stratospheric composition and climate.
Creator (Dublin Core)
Carn, S. A.
Krotkov, N. A.
Yang, K.
Hoff, R. M.
Prata, A. J.
Krueger, A. J.
Loughlin, S. C.
Levelt, P. F.
Date (Dublin Core)
2018-08-09
Type (Dublin Core)
Text
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
10.5194/acpd-7-2857-2007
https://acp.copernicus.org/preprints/acpd-2007-0049/
Source (Dublin Core)
eISSN: 1680-7324
Language (Dublin Core)
eng
