Comparison of daily UV doses estimated from Nimbus 7/TOMS measurements and ground-based spectroradiometric data ...

• Main Authors: Kalliskota, Sari, Kaurola, Jussi, Taalas, Petteri, Herman, Jay, Celarier, Edward A., Krotkov, Nikolay A.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: AGU 2000
• Subjects: Argentina; Ushuaia; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.13016/m2cjo5-tkam; https://mdsoar.org/handle/11603/28430

During recent years, methods have been developed for estimating UV irradiance reaching the Earth's surface using satellite-measured backscattered UV radiances. The NASA-developed method is based on radiative transfer calculations and satellite measurements of parameters affecting UV radiation: extraterrestrial solar irradiance, atmospheric ozone, cloud reflectivity, aerosol amounts, and ground albedo. In this work a comparison is made between daily UV erythemal doses estimated from Nimbus-7/TOMS measurements (from 1991 to May 1993) and those calculated from ground-based spectroradiometer data. Three stations operated by the National Science Foundation were chosen for this comparison: Ushuaia, Argentina (for 573 days), Palmer, Antarctica (for 450 days), and San Diego, California, (for 149 days). These stations were selected to illustrate the differences between ground-based measurements using the same type of instrument, SUV-100 double monochromator spectroradiometers, and satellite estimates of surface UV ...