Stratospheric nitrous oxide distribution in the southern hemisphere

Journal Article · Thu Nov 30 04:00:00 EST 1989 · Journal of Geophysical Research; (United States)

DOI:https://doi.org/10.1029/JD094iD14p16767· OSTI ID:7222507

Podolske, J R; Loewenstein, M; Strahan, S E; Chan, K R ^[1]

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1. NASA Ames Research Center, Moffett Field, CA (United States)

Nitrous oxide measurements were made in the southern hemisphere (latitude, 42{degree}S to 72{degree}S) as part of the Airborne Antarctic Ozone Experiment (AAOE) in late winter and early spring 1987, covering the altitude range 14-21 km. This paper reports on N{sub 2}O measurements made by the airborne tunable laser absorption spectrometer (atlas), which was flown on board the NASA ER-2 aircraft. Average vertical N{sub 2}O profiles at latitudes 72{degree}S, 54{degree}S, and 42{degree}S are presented and compared, when possible, with equivalent summer profiles. Latitudinal gradients of N{sub 2}O on isentropic surfaces are presented and discussed in terms of their implications about the inhibition of horizontal mixing near the polar vortex. Finally, a large-scale distribution of N{sub 2}O for the region 72{degree}S to 42{degree}S latitude is presented. The reader is directed to the note added in proof regarding the recent recalibration of this data set.

• OSTI ID: 7222507
• Journal Information: Journal of Geophysical Research; (United States), Journal Name: Journal of Geophysical Research; (United States) Vol. 94:D14; ISSN JGREA; ISSN 0148-0227
• Country of Publication: United States
• Language: English

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ABSORPTION SPECTROSCOPY
AIRCRAFT
ANTARCTIC REGIONS
ATMOSPHERIC CHEMISTRY
CHALCOGENIDES
CHEMISTRY
DISTRIBUTION
EARTH ATMOSPHERE
EARTH PLANET
ECOLOGICAL CONCENTRATION
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LATITUDE EFFECT
LAYERS
MIXING
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NITROGEN OXIDES
NITROUS OXIDE
OXIDES
OXYGEN COMPOUNDS
OZONE LAYER
PLANETS
POLAR REGIONS
SOUTHERN HEMISPHERE
SPECTROSCOPY
STRATOSPHERE
VARIATIONS
VORTICES