Comparison of the Athens Dobson spectrophotometer with World Standard Instruments

Authors: Tzanis, C.¹; Christodoulakis, J.¹; Efstathiou, M.¹; Varotsos, C.¹

Source: International Journal of Remote Sensing, Volume 30, Numbers 15-16, 2009 , pp. 3943-3950(8)

Publisher: Taylor and Francis Ltd

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Abstract:

The results of the intercomparison between Dobson spectrophotometer No. 118 operating in Athens, Greece and the Reference Instruments Dobson No. 065 and No. 064 in the period 1990-2006 is presented. The Athens Dobson spectrophotometer participated in the Dobson intercomparison campaigns held at Arosa, Switzerland (1990), Kalavryta, Greece (1997) and Hohenpeissenberg, Germany (2006). The results obtained at Arosa showed a deviation of 0.03% in total ozone observations, whereas at Kalavryta and Hohenpeissenberg the highest deviations were -0.4% and 0.6%, respectively. Hence the Dobson spectrophotometer installed in Athens since 1989 can be regarded as a reliable ground-truth station that can be used for the validation of satellite ozone observations and the study of trends in total ozone content (TOC).

Document Type: Research article

DOI: 10.1080/01431160902822005

Affiliations: 1: Department of Applied Physics, University of Athens, Athens, Greece

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