Physics
Scientific paper
Sep 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995jqsrt..54..471s&link_type=abstract
Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 54, issue 3, pp. 471-480
Physics
23
Earth Atmosphere: Ozone, Earth Atmosphere: Radiative Transfer
Scientific paper
Calculations of air-mass factors (AMFs) for ground-based zenith-sky UV-visible spectrometers are presented and discussed. Causes and size of errors in AMFs of ozone in the visible are evaluated. Errors can be caused by approximations in the calculation (intensity-weight approximation, ignoring the finite field of view of the instrument); by approximation in the scheme of the calculation (single scattering, ignoring refraction); or by variable geophysical parameters (vertical profile of constituents). These relative errors in AMF cause identical relative errors in vertical columns of ozone deduced from measurements by zenith-sky spectrometers. The mean of the relative errors of ozone AMFs due to using one set of AMFs for all seasons and locations is ±2.4% when averaged over the commonly used range of solar zenith angles.
Fish Deb J.
Roscoe Howard K.
Sarkissian Armand
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