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Title: Ground-based UV-Vis spectroscopy: Diurnal OClO-profiles during January 1990 above Soendre Stroemfjord, Greenland

Abstract

Considerable amounts of chlorine dioxide, OClO, were observed from 5 January through 2 February, 1990 in the stratosphere above Soendre Stroemfjord showing a highly perturbed chlorine chemistry. Photolysis and simultaneous formation of the OClO leads to a typical concentration minimum at noon. Its changes in concentration indicate the release of the OClO precursors BrO and ClO from their respective reservoir substances in the morning. Two incidences of increased OClO production occur repeatedly at 92{degree} and 89{degree} solar zenith angle (SZA). Furthermore, in the beginning of January OClO morning values exceed those found at dusk for comparable SZA whereas towards the end of the month the morning values become depressed compared to the evening. The twilight vertical column densities of OClO often reach about 1.6 {times} 10{sup 13} molec/cm{sup 2} and a comparison shows an increase from 1988 to 1990.

Authors:
; ; ;  [1];  [2]
  1. Max-Planck-Inst. fuer Chemie, Mainz (West Germany)
  2. Danish Meteorological Inst., Copenhagen (Denmark)
Publication Date:
OSTI Identifier:
5518102
Resource Type:
Journal Article
Journal Name:
Geophysical Research Letters (American Geophysical Union); (United States)
Additional Journal Information:
Journal Volume: 18:4; Journal ID: ISSN 0094-8276
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; CHLORINE OXIDES; ECOLOGICAL CONCENTRATION; STRATOSPHERE; ATMOSPHERIC CHEMISTRY; ABSORPTION SPECTROSCOPY; ARCTIC REGIONS; DAILY VARIATIONS; DATA ANALYSIS; GREENLAND; LOSSES; OZONE LAYER; PHOTOCHEMICAL REACTIONS; PHOTOLYSIS; ULTRAVIOLET RADIATION; VISIBLE RADIATION; CHALCOGENIDES; CHEMICAL REACTIONS; CHEMISTRY; CHLORINE COMPOUNDS; DECOMPOSITION; EARTH ATMOSPHERE; ELECTROMAGNETIC RADIATION; HALOGEN COMPOUNDS; LAYERS; OXIDES; OXYGEN COMPOUNDS; POLAR REGIONS; RADIATIONS; SPECTROSCOPY; VARIATIONS; 540120* - Environment, Atmospheric- Chemicals Monitoring & Transport- (1990-)

Citation Formats

Perner, D, Kluepfel, T, Parchatka, U, Roth, A, and Joergensen, T. Ground-based UV-Vis spectroscopy: Diurnal OClO-profiles during January 1990 above Soendre Stroemfjord, Greenland. United States: N. p., 1991. Web. doi:10.1029/91GL00171.
Perner, D, Kluepfel, T, Parchatka, U, Roth, A, & Joergensen, T. Ground-based UV-Vis spectroscopy: Diurnal OClO-profiles during January 1990 above Soendre Stroemfjord, Greenland. United States. https://doi.org/10.1029/91GL00171
Perner, D, Kluepfel, T, Parchatka, U, Roth, A, and Joergensen, T. 1991. "Ground-based UV-Vis spectroscopy: Diurnal OClO-profiles during January 1990 above Soendre Stroemfjord, Greenland". United States. https://doi.org/10.1029/91GL00171.
@article{osti_5518102,
title = {Ground-based UV-Vis spectroscopy: Diurnal OClO-profiles during January 1990 above Soendre Stroemfjord, Greenland},
author = {Perner, D and Kluepfel, T and Parchatka, U and Roth, A and Joergensen, T},
abstractNote = {Considerable amounts of chlorine dioxide, OClO, were observed from 5 January through 2 February, 1990 in the stratosphere above Soendre Stroemfjord showing a highly perturbed chlorine chemistry. Photolysis and simultaneous formation of the OClO leads to a typical concentration minimum at noon. Its changes in concentration indicate the release of the OClO precursors BrO and ClO from their respective reservoir substances in the morning. Two incidences of increased OClO production occur repeatedly at 92{degree} and 89{degree} solar zenith angle (SZA). Furthermore, in the beginning of January OClO morning values exceed those found at dusk for comparable SZA whereas towards the end of the month the morning values become depressed compared to the evening. The twilight vertical column densities of OClO often reach about 1.6 {times} 10{sup 13} molec/cm{sup 2} and a comparison shows an increase from 1988 to 1990.},
doi = {10.1029/91GL00171},
url = {https://www.osti.gov/biblio/5518102}, journal = {Geophysical Research Letters (American Geophysical Union); (United States)},
issn = {0094-8276},
number = ,
volume = 18:4,
place = {United States},
year = {Mon Apr 01 00:00:00 EST 1991},
month = {Mon Apr 01 00:00:00 EST 1991}
}