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Detailed Reference Information |
Rosen, J.M., Kjome, N.T. and Liley, J.B. (1997). Tropospheric aerosol backscatter at a midlatitude site in the northern and southern hemispheres. Journal of Geophysical Research 102: doi: 10.1029/97JD01486. issn: 0148-0227. |
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Monthly balloon borne aerosol backscatter measurements at ~173¿ and wavelengths of 940 and 490 nm have been made at Lauder, New Zealand (45 ¿S), and Laramie, Wyoming (41 ¿N), since 1992. The presentation and analysis here focus on the trophosperic results which suggest that a similar quasi steady state background aerosol appears over both sites with superimposed seasonal disturbances that are probably related to arid region dust storms and biomass burning. Volcanic influences on the free troposphere are found to be minimal. In contrast to the background aerosol, the aerosol disturbances show a strong hemispheric difference with fewer perturbations over Lauder as well as significantly differing vertical profile structure, as might be expected at a remote site. Our interpretation of the higher resolution backscatter measurements substantially supports the conclusions drawn from the lower resolution stratospheric aerosol and gas experiment (SAGE) and stratospheric aerosol measurement (SAM) satellite observations.¿ 1997 American Geophysical Union |
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Abstract |
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Keywords
Atmospheric Composition and Structure, Atmospheric Composition and Structure, Aerosols and particles (0345, 4801), Atmospheric Composition and Structure, Troposphere—composition and chemistry, Atmospheric Composition and Structure, Volcanic effects |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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