Articles | Volume 17, issue 9
Research article
03 May 2017
Research article |  | 03 May 2017

Global large-scale stratosphere–troposphere exchange in modern reanalyses

Alexander C. Boothe and Cameron R. Homeyer

Data sets

ERA-Interim Project European Centre for Medium-Range Weather Forecasts (ECMWF)

JRA-55: Japanese 55-year Reanalysis, Daily 3-Hourly and 6-Hourly Data Japan Meteorological Agency (JMA)

inst6_3d_ana_Nv: MERRA 3D Analyzed State, Meteorology Instantaneous 6-hourly V5.2.0 Global Modeling and Assimilation Office (GMAO)

MERRA-2 inst6_3d_ana_Nv: 3d, 6-Hourly, Instantaneous, Model-Level, Analysis, Analyzed Meteorological Fields V5.12.4 Global Modeling and Assimilation Office (GMAO)

Short summary
We examine global atmospheric transport that impacts chemistry and climate. In particular, we compare exchanges of troposphere and stratosphere air from large-scale processes as depicted from multiple modern reanalysis models (those intending to provide "best guesses" of the global atmospheric state at a given point in time). We find that transport varies considerably amongst the reanalyses and is sensitive to the choice of troposphere–stratosphere boundary.
Final-revised paper