Long-term trend in the stratosphere
The long-term trend of different atmospheric parameters has been studied separately during previous years in many papers. This study is focused on the temperature, wind (u and v component), geopotential height and water vapour trends during 1979-2015. We present the trend for winter (October-March), summer (April- September) season or each month with respect to ozone turnaround during mid 1990s. The different reanalyses (MERRA, ERA-Interim, JRA-55 and NCEP-NOE) are used for comparison. We analyzed every grid point to reduce the problem with zonal averages in different pressure levels. The results will show the complex view on the trend in the middle atmosphere (troposphere, stratosphere and lower mesosphere).
Reference:
Th-AM-1-O-01
Session:
Observations IVa
Presenter/s:
Michal Kozubek
Topic:
1) Observed trends and long term variations in the middle atmosphere
Presentation type:
Oral communication 15 min
Room:
Conference Room
Chair/s:
Pallam Raju Duggirala
Date:
Thursday, 22 September 2016
Time:
09:00 - 09:15