Dr
Herman Smit
(Research Center Juelich (IEK-8))
13/03/2017, 15:30
oral
Dr
Lucien Froidevaux
(Jet Propulsion Laboratory, California Institute of Technology)
13/03/2017, 15:50
oral
We have updated the Global Ozone Chemistry and Related Trace gas Data Records for the Stratosphere (GOZCARDS) data (see Froidevaux et al. [2015]) with yearly netCDF files (2013-2016) of merged monthly zonal mean ozone mixing ratio profiles versus pressure. For this ongoing merged satellite record, we have updated the public records (version 1 GOZCARDS ozone data, originally produced for...
Dr
Viktoria Sofieva
(Finnish Meteorological Institute)
13/03/2017, 16:10
oral
We present the merged monthly zonal mean ozone profile data set for trend analysis. The dataset is created using data from SAGE II, OSIRIS, GOMOS, MIPAS, SCIAMACHY, ACE-FTS and OMPS satellite instruments. In this presentation, we explain the merging method, show examples of data and a preliminary analysis of trends in the vertical distribution of ozone.
Dr
William Ball
(PMOD/WRC Davos & IAC/ETH Zurich)
13/03/2017, 16:30
oral
Accurate estimation of decadal trends in stratospheric ozone requires combining observations from multiple instruments. However, the trends derived from different composites disagree due to artefacts in the underlying instrument data or in the merging procedures. We offer an approach to remove these artefacts by applying particle filtering using only the data itself in addition to prior...
Wolfgang Steinbrecht
(Deutscher Wetterdienst)
13/03/2017, 16:50
oral
I'll give a short update on ozone profile trends obtained using the same methodology as in WMO 2014, that is based on monthly zonal mean anomalies or monthly station mean anomalies. I'll use merged satellite data (SBUV-NASA, SBUV-NOAA, GOZCARDS, SWOOSH, SAGE2+OSIRIS) and NDACC station data. I can also say a few words about the regression used.
Dr
Mark Weber
(University of Bremen)
13/03/2017, 17:10
oral
Since ozone depleting substances (ODS) started their decline in the late 1990s, stratospheric ozone is expected to recover. Sofar a statistical significant increase as usually derived from statistical regression models has not been observed in total ozone. Nevertheless, total column ozone has levelled off and in the upper stratosphere an ozone increase is evident, both documenting the success...
