VALIDATION OF ENVISAT SCIAMACHY LEVEL 2 PRODUCTS WITH THE DATAOF RUSSIAN GROUND-BASED MEASUREMENTS

摘要

The paper summarize results of comparisons betweenrnSCIAMACHY level 2 products and ground-basedrnmeasurements at a number of stations in Russia andrnNIS, carried out for the period of ENVISATrncommissioning phase validation in 2002 (ENVISATrnAO-427). Basically, the study presents preliminaryrnvalidation of SCIAMACHY ozone and NO_2 verticalrncolumn data, coming from nadir-mode measurements inrnJuly-December 2002, and generated with the processorrnversion 5.01 (SCIAMACHY Validation MasterSet).rnThe comparison involves regular observations of totalrnozone at about 20 locations over Russia and NIS, and 2rnsites of twilight NO_2 vertical column measurements. Inrnaddition, CH_4 vertical column data was compared tornground-based observations at 3 sites. The main resultsrnare compared to those achieved before with the similarrnstudies on SCIAMACHY data version 3.53.