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Near UV atmospheric absorption measurements of column abundances during Airborne Arctic Stratospheric Expedition, January – February 1989: 1. Technique and NO 2 observations
Author(s) -
Wahner Andreas,
Callies Jörg,
Dorn HansPeter,
Platt Ulrich,
Schiller Cornelius
Publication year - 1990
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/gl017i004p00497
Subject(s) - arctic , stratosphere , polar vortex , environmental science , atmospheric sciences , the arctic , polar , oceanography , geology , physics , astronomy
Spectroscopic measurements of column abundances of NO 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 2 with lowest vertical column abundances of NO 2 below 2 × 10 14 cm −2 compared to abundances of 3 – 5 − 10 15 cm −2 south of 50° N in winter (WMO, 1985).