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), Vol. 7:5
- Country of Publication:
- United States
- Language:
- English
Similar Records
Measurements of nitrogen oxides at Barrow, Alaska during spring: Evidence for regional and northern hemispheric sources of pollution
A long-term decrease in arctic haze at Barrow, Alaska
Related Subjects
AEROSOLS
MONITORING
ALASKA
AIR POLLUTION
CARBON DIOXIDE
OZONE
AIR QUALITY
ARCTIC REGIONS
QUANTITY RATIO
WIND
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
COLLOIDS
DISPERSIONS
ENVIRONMENTAL QUALITY
NORTH AMERICA
OXIDES
OXYGEN COMPOUNDS
PACIFIC NORTHWEST REGION
POLAR REGIONS
POLLUTION
SOLS
USA
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)