Dependence of CO/sub 2/, aerosol, and ozone concentrations on wind direction at Barrow, Alaska during winter
Measurements of CO/sub 2/, aerosol scattering, condensation nuclei, and ozone made continuously at the NOAA baseline observatory at Barrow, Alaska, have been analyzed in conjunction with low-level trajectories of airflow arriving at Barrow during periods from January to March of 1977 and 1978. Ozone concentrations had no dependence on wind direction whereas CO/sub 2/ and aerosol values did show directional dependence; higher values occurred with airflow from the Arctic Basin than with that from the south. The aerosol analyses support the hypothesis that Arctic haze results from advection of aerosols to the Arctic from European or North American anthropogenic sources. CO/sub 2/ results suggest two possible sources for the higher concentrations: transfer from the ocean through annual sea ice to the Arctic atmosphere or advection from midlatitude anthropogenic sources similar to that for the Arctic haze.
- Research Organization:
- Air Resources Laboratories, National Oceanic and Atmospheric Administration Boulder, Colorado 80303
- OSTI ID:
- 5267699
- Journal Information:
- Geophys. Res. Lett.; (United States), Journal Name: Geophys. Res. Lett.; (United States) Vol. 7:5; ISSN GPRLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOLS
AIR POLLUTION
AIR QUALITY
ALASKA
ARCTIC REGIONS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
COLLOIDS
DISPERSIONS
ENVIRONMENTAL QUALITY
MONITORING
NORTH AMERICA
OXIDES
OXYGEN COMPOUNDS
OZONE
PACIFIC NORTHWEST REGION
POLAR REGIONS
POLLUTION
QUANTITY RATIO
SOLS
USA
WIND