Requirements for the spatial resolution, temporal resolution, and measuring uncertainties of total ozone measurements to calculate the erythemally effective UV radiation with a pre-selected accuracy

Alois W. Schmalwieser; Günther Schauberger; Thilo Erbertseder; Michal Janouch; Gerrie J. R. Coetzee; Philipp Weihs

doi:10.1117/12.689565

19 October 2006 Requirements for the spatial resolution, temporal resolution, and measuring uncertainties of total ozone measurements to calculate the erythemally effective UV radiation with a pre-selected accuracy

Alois W. Schmalwieser, Günther Schauberger, Thilo Erbertseder, Michal Janouch, Gerrie J. R. Coetzee, Philipp Weihs

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Proceedings Volume 6362, Remote Sensing of Clouds and the Atmosphere XI; 63621C (2006) https://doi.org/10.1117/12.689565
Event: SPIE Remote Sensing, 2006, Stockholm, Sweden

Abstract

In this study we have analysed the sensitivity of the erythemally effective radiation to uncertainties in measured total ozone content of the atmosphere (TOC).These uncertainties result from a restricted spatial resolution, a restricted temporal resolution or the restricted accuracy of measured TOC. Daily operational total ozone measurements from different instruments made over several years were applied. Measurements were gained space born by EPTOMS, ERS-2/GOME and TOVS and from the ground by Dobson and Brewer Spectrophotometers for the locations of Hradec Kralove (Czech Republic, 50°N), Nairobi (Kenya, 1°S) and Springbok (Rep. of South Africa, 30°S). The measurement uncertainties were analyzed by an inter-comparison of modeled erythemally effective UV radiation when using different sources of TOC. The evaluation of the uncertainties due to temporal delays was done in using TOC values with different temporal shifts. The influence of spatial gaps in TOC measurements was estimated separately in longitude and latitude up to distances of 1000 km around the measuring sites. From this analysis, requirements on the spatial resolution, temporal resolution and measuring uncertainties of total ozone measurements to calculate the erythemally effective UV radiation with a pre-selected accuracy can be derived in dependence of location and season.

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Alois W. Schmalwieser, Günther Schauberger, Thilo Erbertseder, Michal Janouch, Gerrie J. R. Coetzee, and Philipp Weihs "Requirements for the spatial resolution, temporal resolution, and measuring uncertainties of total ozone measurements to calculate the erythemally effective UV radiation with a pre-selected accuracy", Proc. SPIE 6362, Remote Sensing of Clouds and the Atmosphere XI, 63621C (19 October 2006); https://doi.org/10.1117/12.689565

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KEYWORDS

Radiation effects

Ultraviolet radiation

Ozone

Atmospheric modeling

Spatial resolution

Spectrophotometry

Temporal resolution

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