Africa

This recipe is available via AutoAssess.

Overview

This diagnostic analyses African Easterly Waves (AEW) during the months May to September.

(Possibly West African Monsoon?)

Available recipes and diagnostics

The assessment code is available from the AutoAssess repository.

User settings in recipe

There are no user settings for this recipe

Variables

  • pr (atmos, daily mean, longitude latitude time)

  • ua (700) (atmos, daily mean, longitude latitude time)

  • va (700) (atmos, daily mean, longitude latitude time)

Observations and reformat scripts

  • ECMWF Reanalysis (ERA-Interim?) (ua, va)

  • MERRA (ua, va)

References

Bain, C.L., K. Williams, S. Milton, J. Heming (2013): Tracking African Easterly Waves in Met Office models QJRMS

Example plots

NAC plot for Africa area

Summary overview of metrics from the Africa assessment

AEWstats.png

Statistics of various aspects of African Easterly Waves

raincoupling.png

Coupling between AEWs and rainfall

egAEWhov.png

Hovmoller of curvature vorticity overlaid with AEW tracks

egAEWRAINhov.png

Hovmoller of rainfall overlaid with AEW tracks