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Department of Atmospheric Sciences, University of Arizona
Department of Atmospheric Sciences, University of Arizona [Анг.]
URL: http://www.atmo.arizona.edu/faculty/research/radiation/
Atmospheric Radiation and Remote Sensing Projects

Aerosol Optical Depths. Aerosol optical depths are being calculated from measurements of solar transmission at 8 wavelengths. Estimates of the integrated water vapor content of the atmosphere and total ozone can be obtained from these data.

Aerosol Size Distributions. The parameters of the aerosol size distribution in the visible range are being inferred from measurements of the aerosol optical depth at several different wavelengths. In particular, the properties of the Mt. Pinatubo volcanic aerosols are being studied.

Derivation of Inversion Algorithms for the GPS/MET. In collaboration with scientists at NCAR, data from Global Positioning System (GPS) satellites are being used to determine atmospheric density, temperature, and moisture profiles. Research is being performed to develop improved inversion algorithms and to extend the useful profiles to higher altitudes. Possible ways to determine tropospheric water vapor from the measurements are also being investigated.

Atmospheric Temperature from Optical Refraction. SAGE II measurements of the shrinking size of the setting sun, as viewed through the earth's limb from space, are being used to determine the temperature structure of the atmosphere. This is somewhat analigous to the GPS/MET effort, but for optical wavelengths. [

Satellite Remote Sensing. Theoretical studies are being conducted to determine the best methods for inverting SAGE III satellite data to determine the altitude profiles of aerosol, ozone, and water vapor using measurements of solar radiation scattered from the Earth's limb. Also, algorithms for determining total atmospheric ozone using TOMS satellite data are being studied to see if they can be improved by correcting for the sphericity of the Earth's atmosphere.

Radiative Transfer. Theoretical studies of radiative transfer through a spherical atmosphere are being conducted to enhance a broad range of remote sensing applications where spherical geometry is important.

Limb Scattering. Simulation studies are being conducted to investigate the feasibility of using scattered solar radiation from the atmospheric limb as seen from space, to determine atmospheric properties such as aerosol and ozone profiles.

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Грант INTAS 00-189, грант РФФИ №04-07-90123