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El Chichon volcanic debris in an Arctic tropopause fold
Author(s) -
Shapiro M. A.,
Schnell R. C.,
Parungo F. P.,
Oltmans S. J.,
Bodhaine B. A.
Publication year - 1984
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl011i005p00421
Subject(s) - tropopause , volcano , troposphere , arctic , stratosphere , geology , atmospheric sciences , polar vortex , polar , fold (higher order function) , debris , environmental science , climatology , oceanography , geochemistry , physics , astronomy , engineering , mechanical engineering
A research flight with the NOAA WP‐3D aircraft revealed evidence for stratospheric‐tropospheric exchange within the Arctic through tropopause folding on the flank of the polar vortex. Observations showed descent of the tropopause and of stratospheric ozone to 700 mb along the west coast of Greenland. Measurements of condensation nuclei and analysis of high volume impactor samples documented the presence of volcanic debris probably from the 1982 El Chichon eruption, including H 2 SO 4 droplets, within the polar vortex and associated tropopause fold.