Ozone destruction through heterogeneous chemistry following the eruption of El Chichon
The results of ozone observations at northern midlatitudes in late 1982 through 1983, following the eruption of El Chichon are discussed, together with the observations of other trace gases which may be linked to possible variations in ozone chemistry. These results are related to the in situ aeroso...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19890050544 2023-05-15T14:04:33+02:00 Ozone destruction through heterogeneous chemistry following the eruption of El Chichon Hofmann, David J. Solomon, Susan Unclassified, Unlimited, Publicly available Apr 20, 1989 http://ntrs.nasa.gov/search.jsp?R=19890050544 unknown http://ntrs.nasa.gov/search.jsp?R=19890050544 Accession ID: 89A37915 Copyright Other Sources 46 Journal of Geophysical Research; 94; 5029-504 1989 ftnasantrs 2012-02-15T18:03:11Z The results of ozone observations at northern midlatitudes in late 1982 through 1983, following the eruption of El Chichon are discussed, together with the observations of other trace gases which may be linked to possible variations in ozone chemistry. These results are related to the in situ aerosol observations following the El Chicon eruption, with particular attention given to data relevant to heterogeneous reactions, such as the aerosol surface area and weight percent H2SO4. It is shown that, at midlatitudes, the observed volcanic-particle surface area reached a maximum of about 50 sq microns/cu m (above a typical background value of about 0.75) at an altitude of 18-20 km in early 1983; this enhancement of surface area is about the same as that encountered in stratospheric clouds in the Antarctic, suggesting a possible basis for ozone depletion through heterogeneous chemistry. The fraction of ozone reduction that may have occurred as a result of heterogeneous chemicl effects is estimated. Other/Unknown Material Antarc* Antarctic NASA Technical Reports Server (NTRS) Antarctic The Antarctic |
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NASA Technical Reports Server (NTRS) |
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46 |
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46 Hofmann, David J. Solomon, Susan Ozone destruction through heterogeneous chemistry following the eruption of El Chichon |
topic_facet |
46 |
description |
The results of ozone observations at northern midlatitudes in late 1982 through 1983, following the eruption of El Chichon are discussed, together with the observations of other trace gases which may be linked to possible variations in ozone chemistry. These results are related to the in situ aerosol observations following the El Chicon eruption, with particular attention given to data relevant to heterogeneous reactions, such as the aerosol surface area and weight percent H2SO4. It is shown that, at midlatitudes, the observed volcanic-particle surface area reached a maximum of about 50 sq microns/cu m (above a typical background value of about 0.75) at an altitude of 18-20 km in early 1983; this enhancement of surface area is about the same as that encountered in stratospheric clouds in the Antarctic, suggesting a possible basis for ozone depletion through heterogeneous chemistry. The fraction of ozone reduction that may have occurred as a result of heterogeneous chemicl effects is estimated. |
format |
Other/Unknown Material |
author |
Hofmann, David J. Solomon, Susan |
author_facet |
Hofmann, David J. Solomon, Susan |
author_sort |
Hofmann, David J. |
title |
Ozone destruction through heterogeneous chemistry following the eruption of El Chichon |
title_short |
Ozone destruction through heterogeneous chemistry following the eruption of El Chichon |
title_full |
Ozone destruction through heterogeneous chemistry following the eruption of El Chichon |
title_fullStr |
Ozone destruction through heterogeneous chemistry following the eruption of El Chichon |
title_full_unstemmed |
Ozone destruction through heterogeneous chemistry following the eruption of El Chichon |
title_sort |
ozone destruction through heterogeneous chemistry following the eruption of el chichon |
publishDate |
1989 |
url |
http://ntrs.nasa.gov/search.jsp?R=19890050544 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19890050544 Accession ID: 89A37915 |
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Copyright |
_version_ |
1766275724148211712 |