Speaker
Description
Using ozonesonde data from the Harmonization and Evaluation of Ground Based Instruments for Free Tropospheric Ozone Measurements (HEGIFTOM) and other satellite data sets (e.g. MLS), we compared the ozone trend from Ozone Mapping and Profiler Suite Limb Profiler (OMPS-LP) in upper troposphere and lower stratosphere (UTLS). The detailed comparisons between these datasets reveal the temporal and altitude- and latitude-dependent bias and drift of OMPS-LP version 2.6 data, which shows the improvement of the data quality of OMPS-LP v2.6 compared to previous version. The bias and drift suggest the necessity to revisit the ozone trend by OMPS-LP, which will also improve the quality of homogenized datasets with OMPS-LP incorporated (e.g. SWOOSH) through bias and drift characterization and correction.
