Abstract
In April 1986, a well-instrumented NOAA WP-3D research aircraft conducted three flights in the Canadian Arctic tied to the Canadian Atmospheric Environment Service baseline station in Alert, Northwest Territories. Two of the flights were coordinated with the National Aeronautical Establishment of Canada Twin Otter and the University of Washington C-131 research aircraft. The haze observed in the Canadian Arctic was well-aged and mixed throughout the troposphere in concentrations well below those observed during the previous weeks in the Alaskan Arctic. Over the ice, beneath the surface temperature inversion, ozone was generally depleted to near zero. Over the coast at Alert, there is evidence that topography and downslope winds reduce the strength of the inversion, thus allowing lower tropospheric gases and aerosols to mix down to the surface. At the top of the troposphere, an aerosol-depleted region was observed. In the lower stratosphere, aerosol concentrations were elevated above those observed in the troposphere.
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References
Barrie, L.A., 1986, “Background pollution in the Arctic air mass and its relevance to North American acid rain studies,” Water, Air, Soil Pollut., 30, 765–777.
Barrie, L.A., and Hoff, R.M., 1985, “Five years of air chemistry observations in the Canadian Arctic,” Atmos. Environ. 19, 1995–2010.
Barrie, L.A., Hoff, R.M., and Daggupaty, S.M., 1981, “The influence of mid-latitudinal pollution sources on haze in the Canadian Arctic,” Atmos. Environ. 15, 1407–1419.
Barrie, L.A., Fisher, D., and Koerner, R.M., 1985, “Twentieth century trends in Arctic air pollution revealed by conductivity and acidity observations in snow and ice in the Canadian high Arctic,” Atmos. Environ. 19, 2055–2063.
Barrie, L.A., den Hartog, G., and Bottenheim, J.W., 1989, “Anthropogenic aerosols and gases in the lower troposphere at Alert, Canada in April, 1986,” J. Atmos. Chem, this issue.
Borys, R.A., 1989. “Studies of ice nucleation by Arctic aerosol on AGASP-II,” J. Atmos. Chem, (this issue).
Bottenheim, J.W., and Gallant, A.J., 1989, “PAN over the Arctic; observations during AGASP-II in April, 1986,” J. Atmos. Chem., (this issue).
Conway, T.J., and Steele, L.P., 1989, “Carbon dioxide and methane in the Arctic atmosphere,” J. Atmos. Chem., this issue.
Danielsen, E.F., and Mohnen, V.A., 1977, “Project duststorm report: Ozone transport, in situ measurements, and meteorological analysis of tropopause folding,” J. Geophys. Res. 82, 5867–5877.
Dutton, E.G., DeLuisi, J.J., and Herbert, G.A., 1989. “Spectral aerosol optical depth of Arctic haze as measured on board the NOAA WP-3D during AGASP-II, April 1986,” J. Atmos. Chem., this issue.
Fricke, W., 1987, “Observations of background concentrations and estimated residence times of sulphur compounds in polar air masses over Canada,” Poster Presentation, 6th Int. Symp. on Global Atmospheric Chemistry, Peterborough, Canada, 23–29 August.
Hansen, A.D.A., and Novakov, T., 1989, “Aerosol black carbon measurements in the Arctic Troposphere,” J. Atmos. Chem., this issue.
Harris, J.M., 1984, Trajectories during AGASP, Geophys. Res. Lett., 11, 453–456.
Herbert, G.A., Bridgman, H.A., Schnell, R.C., Bodhaine, B.A., and Oltmans, S.J., 1987, “The analysis of meteorological conditions and haze distributions for the second Arctic gas and aerosol sampling project (AGASP-II)-April 1986,” NOAA Tech. Memo., ERL ARL-158, NOAA Air Resources Laboratory, Boulder, CO, 65 pp.
Herbert, G.A., Schnell, R.C., Bridgman, H.A., Bodhaine, B.A., and Oltmans, S.J., 1989, “Meteorology and haze structure during AGASP II: The Alaskan Arctic Flights,” J. Atmos. Chem., this issue.
Hoff, R.M., and Trivett, N.B.A., 1984, “Ground-based measurements of Arctic haze made at Alert, N.W.T. Canada during AGASP,” Geophys. Res. Lett. 11, 389–392.
Leaitch, W.R., and MacPherson, J. I., 1986, “Preliminary data report on measurements made with the National Aeronautical Establishment Twin Otter at Alert, NWT during 1986,” Atmospheric Environment Service, Ontario, Canada, 70 pp.
Leaitch, W.R., Hoff R.M., and MacPherson, J.F., 1989, “Aircraft and lidar measurements of aerosol and cloud particles in the troposphere over Alert, Canada in April, 1986,” J. Atmos. Chem., this issue.
McElroy, M.B., Salawitch, R.J., Wofsy, S.C., and Logan, J.A., 1986, “Reductions of Antarctic ozone due to synergistic interactions of chlorine and bromine,” Nature 321, 759–762.
Oltmans, S.J., 1981, “Surface ozone measurements in clean air,” J. Geophys. Res. 86, 1174–1180.
Raatz, W.E., and Schnell, R.C., 1984, “Aerosol distributions and an Arctic aerosol front during AGASP: Norwegian Arctic,” Geophys. Res. Lett. 11, 373–376.
Raatz, W.E., and Shaw, G.C., 1984, “Long-range tropospheric transport of pollution aerosols into the Alaskan Arctic,” J. Clim. Appl. Meteorol. 23, 1052–1064.
Raatz, W.E., Schnell, R.C., Bodhaine, B.A., and Oltmans, S.J., 1985a, “Observations of Arctic haze during polar flights from Alaska to Norway,” Atmos. Environ. 12, 2143–2151.
Raatz, W.E., Schnell, R.C., Bodhaine, B.A., Oltmans, S.J., and Gammon, R.H., 1985b, “Air mass characteristics in the vicinity of Barrow, Alaska, 9–19 March 1983,” Atmos. Environ. 19, 2127–2134.
Raatz, W.E., Schnell, R.C., Shapiro, M.A., Oltmans, S.J., and Bodhaine, B.A., 1985c, “Instrusions of stratospheric air into Alaska's troposphere, March 1983,” Atmos. Environ. 19, 2153–2158.
Radke, L.F., Brock, C.A., Lyons, J.H., and Hobbs, P.V., 1986, “Preliminary analysis and integration of flight-level and lidar data taken by the University of Washington during AGASP-II,” Final report to National Oceanic and Atmospheric Administration, October 1986, 103 pp.
Schnell, R.C., and Raatz, W.E., 1984, “Vertical and horizontal characteristics of Arctic haze during AGASP: Alaskan Arctic,” Geophys. Res. Lett. 11, 369–372.
Schnell, R.C., Watson, T.B., and Bodhaine, B.A., 1989, “NOAA WP-3D instrumentation and flight operations on AGASP-II,” J. Atmos. Chem., this issue.
Shapiro, M. A., 1985, “Dropwindsonde observations of an Icelandic low and a Greenland mountain-lee wave,” Mon. Weather Rev. 113, 680–683.
Shapiro, M.A., Schnell, R.C., Parungo, F.P., Oltmans, S.J., and Bodhaine, B.A., 1984, “El Chichon volcanic debris in an Arctic tropopause fold,” Geophys. Res. Lett. 11, 412–424.
Shapiro, M.A., Hampel, T., and Kruger, A. J., 1987, “The Arctic tropopause fold,” Mon. Weather. Rev., (in press).
Valero, F.P.J., Ackerman, T.P., and Gore, W.J.Y., 1989, “The effects of the Arctic haze as determined from airborne radiometric measurements during AGASP-II,” J. Atmos. Chem., this issue.
Wofsy, S.C., McElroy, M.B., and Yuk Ling, Yung, 1975, “The chemistry of atmospheric bromine,” Geophys. Res. Lett. 2, 215–218.
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Bridgman, H.A., Schnell, R.C., Herbert, G.A. et al. Meteorology and haze structure during AGASP-II, Part 2: Canadian Arctic flights, 13–16 April 1986. J Atmos Chem 9, 49–70 (1989). https://doi.org/10.1007/BF00052824
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DOI: https://doi.org/10.1007/BF00052824