CH_4 AND CO TOTAL COLUMNS FROM SCIAMACHY: COMPARISONS WITH TM3AND MOPITT

摘要

The methane (CH_4) and carbonmonoxide (CO) total columns retrieved from SCIAMACHY's near-infrared channel 8 have been compared to measurements from the MOPITT satellite instrument, and with model calculations by the chemistry transport model TM3. Since the operational products for these species still deviate from the expected levels by orders of magnitude, results from independent scientific algorithms are presented here. The total columns from each of these scientific algorithms are similar, but significant differences still remain. First results show that both monthly averaged and daily data show good agreement with TM3 model calculations and measurements from the MOPITT satellite.