WF-DOAS V1.0 Validation Report

Abstract

This report summarizes the validation of the GOME total ozone derived from applying the weighting function DOAS (WF-DOAS) algorithm Version 1.0. This algorithm was developed as part of the GOTOCORD ESA project (see accompanying ATBD Report). The WF-DOAS results have been compared with selected ground-based measurements from the WOUDC (World Ozone and UV Radiation Data Centre) which collects total zone measurements from a global network of stations. Very few of these stations carry out simultaneous measurements by Brewer and Dobson spectrometers over an extended period (three years or more). Simultaneous Brewer and Dobson measurements from Hradec Kralove, Czech Republic (50.2◦N, 15.8◦E) and Hohenpeissenberg, Germany (47.8◦N, 11.0◦E) covering the period 1996-1999 have been compared with our GOME results and particular attention is paid to the differences between the two ground spectrometer types and GOME.