Validation of GOMOS (GOPR 6.0A) and SCIAMACHY (V5.1/2.1) O3 and NO2 Products with GOME (V3.0 and IUP Retrievals), HALOE (V19) and SAGE II (6.2)

Details Validation of GOMOS (GOPR 6.0A) and SCIAMACHY (V5.1/2.1) O3 and NO2 Products with GOME (V3.0 and IUP Retrievals), HALOE (V19) and SAGE II (6.2) Validation of GOMOS (GOPR 6.0A) and SCIAMACHY (V5.1/2.1) O3 and NO2 Products with GOME (V3.0 and IUP Retrievals), HALOE (V19) and SAGE II (6.2)

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004esasp.562e..55b&link_type=abstract

Proceedings of the Second Workshop on the Atmospheric Chemistry Validation of ENVISAT (ACVE-2), 3-7 May 2004, ESA-ESRIN, Frascat

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Scientific paper

The operational data products of O3 and NO2 from the two ENVISAT instruments GOMOS and SCIAMACHY are validated by comparison with other space borne instruments. Except for latitudes >40°S, SCIAMACHY operational O3 columns (v5.1) show an agreement within 2% with GOME 3.0 and a negative bias of 0-5% with the scientific GOME-WFDOAS product [1]. Both SCIAMACHY NO2 columns, the operational v5.1 compared to GOME 3.0 and the scientific SCIAMACHY_IUP compared to GOME_IUP [2], show an agreement within 15% at most latitudes. SCIAMACHY O3 profiles (v2.1) are within ­6 to 20% (RMS 20-25%) with HALOE and SAGE II. But, SCIAMACHY NO2 profiles (v2.1) are showing a high positive bias of 50% (RMS 50%) to HALOE (including photochemical corrections for HALOE NO2 data) and 10% of the profiles have unphysical values. The GOMOS O3 profiles (v6.0a) are within 5% (RMS 515%) compared to SAGE II. GOMOS N 2 profiles O (v6.0a) are within -30 to +60% (RMS 10-30%) to SAGE II (including photochemical corrections)

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