Stratospheric OClO and NO2 measured by groundbased UV/Vis-spectroscopy in Greenland in January and February 1990 and 1991

Groundbased UV/Vis-spectroscopy of zenith scattered sunlight was performed at Sondre Stromfjord (Greenland) during Jan/Feb 1990 and Jan/Feb 1991. Considerable amounts of OClO were observed during both campaigns. Maximum OClO vertical column densities at 92 deg solar zenith angle (SZA) were 7.4 x 10(...

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Bibliographic Details
Main Authors: Perner, D., Roth, A.
Format: Other/Unknown Material
Language:unknown
Published: 1994
Subjects:
GEOPHYSICS
Greenland
Sondre Stromfjord
Online Access:http://hdl.handle.net/2060/19950004613
id ftnasantrs:oai:casi.ntrs.nasa.gov:19950004613
record_format openpolar
spelling ftnasantrs:oai:casi.ntrs.nasa.gov:19950004613 2023-05-15T16:27:13+02:00 Stratospheric OClO and NO2 measured by groundbased UV/Vis-spectroscopy in Greenland in January and February 1990 and 1991 Perner, D. Roth, A. Unclassified, Unlimited, Publicly available Apr 1, 1994 application/pdf http://hdl.handle.net/2060/19950004613 unknown Document ID: 19950004613 Accession ID: 95N11026 http://hdl.handle.net/2060/19950004613 No Copyright CASI GEOPHYSICS NASA. Goddard Space Flight Center, Ozone in the Troposphere and Stratosphere, Part 2; p 520-523 1994 ftnasantrs 2015-03-15T03:40:15Z Groundbased UV/Vis-spectroscopy of zenith scattered sunlight was performed at Sondre Stromfjord (Greenland) during Jan/Feb 1990 and Jan/Feb 1991. Considerable amounts of OClO were observed during both campaigns. Maximum OClO vertical column densities at 92 deg solar zenith angle (SZA) were 7.4 x 10(exp 13) molec/sq cm in 1990 and 5.7 x 10(exp 13) molec/sq cm in 1991 (chemical enhancement is included in the calculation of the air mass factor (AMF)). A threshold seems to exist for OClO detection: OClO was detected on every day when the potential vorticity at the 475 K level of potential temperature was higher than 35 x 10(exp -6)Km(exp 2)kg(exp -1)s(exp -1). NO2 vertical columns lower than 1 x 10(exp 15) molec/sq cm were frequently observed in both winters. Other/Unknown Material Greenland Sondre Stromfjord NASA Technical Reports Server (NTRS) Greenland
institution Open Polar
collection NASA Technical Reports Server (NTRS)
op_collection_id ftnasantrs
language unknown
topic GEOPHYSICS
spellingShingle GEOPHYSICS
Perner, D.
Roth, A.
Stratospheric OClO and NO2 measured by groundbased UV/Vis-spectroscopy in Greenland in January and February 1990 and 1991
topic_facet GEOPHYSICS
description Groundbased UV/Vis-spectroscopy of zenith scattered sunlight was performed at Sondre Stromfjord (Greenland) during Jan/Feb 1990 and Jan/Feb 1991. Considerable amounts of OClO were observed during both campaigns. Maximum OClO vertical column densities at 92 deg solar zenith angle (SZA) were 7.4 x 10(exp 13) molec/sq cm in 1990 and 5.7 x 10(exp 13) molec/sq cm in 1991 (chemical enhancement is included in the calculation of the air mass factor (AMF)). A threshold seems to exist for OClO detection: OClO was detected on every day when the potential vorticity at the 475 K level of potential temperature was higher than 35 x 10(exp -6)Km(exp 2)kg(exp -1)s(exp -1). NO2 vertical columns lower than 1 x 10(exp 15) molec/sq cm were frequently observed in both winters.
format Other/Unknown Material
author Perner, D.
Roth, A.
author_facet Perner, D.
Roth, A.
author_sort Perner, D.
title Stratospheric OClO and NO2 measured by groundbased UV/Vis-spectroscopy in Greenland in January and February 1990 and 1991
title_short Stratospheric OClO and NO2 measured by groundbased UV/Vis-spectroscopy in Greenland in January and February 1990 and 1991
title_full Stratospheric OClO and NO2 measured by groundbased UV/Vis-spectroscopy in Greenland in January and February 1990 and 1991
title_fullStr Stratospheric OClO and NO2 measured by groundbased UV/Vis-spectroscopy in Greenland in January and February 1990 and 1991
title_full_unstemmed Stratospheric OClO and NO2 measured by groundbased UV/Vis-spectroscopy in Greenland in January and February 1990 and 1991
title_sort stratospheric oclo and no2 measured by groundbased uv/vis-spectroscopy in greenland in january and february 1990 and 1991
publishDate 1994
url http://hdl.handle.net/2060/19950004613
op_coverage Unclassified, Unlimited, Publicly available
geographic Greenland
geographic_facet Greenland
genre Greenland
Sondre Stromfjord
genre_facet Greenland
Sondre Stromfjord
op_source CASI
op_relation Document ID: 19950004613
Accession ID: 95N11026
http://hdl.handle.net/2060/19950004613
op_rights No Copyright
_version_ 1766016344674795520

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