Ozone and aerosol changes during the 1991-1992 Airborne Arctic Stratospheric Expedition

Journal Article · Fri Aug 27 04:00:00 EDT 1993 · Science (Washington, D.C.); (United States)

DOI:https://doi.org/10.1126/science.261.5125.1155· OSTI ID:5572535

Browell, E V; Grant, W B; Ismail, S ^[1]; Butler, C F; Fenn, M A ^[2]; Schoeberl, M R ^[3]; Toon, O B; Loewenstein, M; Podolske, J R ^[4]

---

1. NASA Langley Research Center, Hampton, VA (United States)
2. Science Applications International Corp., Hampton, VA (United States)
3. NASA Goddard Space Flight Center, Greenbelt, MD (United States)
4. NASA Ames Research Center, Moffett Field, CA (United States)

Stratospheric ozone and aerosol distributions were measured across the wintertime Arctic vortex from January to March 1992 with an airborne lidar system as part of the 1992 Airborne Arctic Stratospheric Expedition (AASE II). Aerosols from the Mount Pinatubo eruption were found outside and inside the vortex with distinctly different distributions that clearly identified the dynamics of the vortex. Changes in aerosols inside the vortex indicated advection of air from outside to inside the vortex below 16 kilometers. No polar stratospheric clouds were observed and no evidence was found for frozen volcanic aerosols inside the vortex. Between January and March, ozone depletion was observed inside the vortex from 14 to 20 kilometers with a maximum average loss of about 23 percent near 18 kilometers.

• OSTI ID: 5572535
• Journal Information: Science (Washington, D.C.); (United States), Journal Name: Science (Washington, D.C.); (United States) Vol. 261:5125; ISSN SCIEAS; ISSN 0036-8075
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540110*
AEROSOLS
ARCTIC REGIONS
ATMOSPHERIC CIRCULATION
CLOUDS
COLLOIDS
CRYOSPHERE
DISPERSIONS
DISTRIBUTION
EARTH ATMOSPHERE
ERUPTION
LAYERS
LOSSES
MEASURING INSTRUMENTS
OPTICAL RADAR
OZONE LAYER
POLAR REGIONS
RADAR
RANGE FINDERS
REMOTE SENSING
SOLS
SPATIAL DISTRIBUTION
STRATOSPHERE
VOLCANOES