Near UV atmospheric absorption measurements of column abundances during Airborne Arctic Stratospheric Expedition, January-February 1989: 1. Technique and NO sub 2 observations

Journal Article · Wed Feb 28 23:00:00 EST 1990 · Geophysical Research Letters (American Geophysical Union); (United States)

DOI:https://doi.org/10.1029/GL017i004p00497· OSTI ID:5397218

Wahner, A; Callies, J; Dorn, H P; Platt, U; Schiller, C ^[1]

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1. Kernforschungsanlage Juelich (West Germany)

Spectroscopic measurements of column abundances of NO{sub 2} were carried out from the NASA DC-8 airplane during the Airborne Arctic Stratospheric Expedition in January and February 1989. Stratospheric airmasses inside and close to the polar vortex were found to be highly depleted of NO{sub 2} with lowest vertical column abundances of NO{sub 2} below 2 {times} 10{sup 14} cm{sup {minus}2} compared to abundances of 3-5 {times} 10{sup 15} cm{sup {minus}2} south of 50{degree}N in winter (WMO, 1985).

• OSTI ID: 5397218
• Journal Information: Geophysical Research Letters (American Geophysical Union); (United States), Journal Name: Geophysical Research Letters (American Geophysical Union); (United States) Vol. 17:4; ISSN GPRLA; ISSN 0094-8276
• Country of Publication: United States
• Language: English

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ABSORPTION SPECTROSCOPY
AIRCRAFT
ARCTIC REGIONS
ATMOSPHERIC CHEMISTRY
CHALCOGENIDES
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NITROGEN DIOXIDE
NITROGEN OXIDES
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POLAR REGIONS
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STRATOSPHERE
ULTRAVIOLET RADIATION
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