These results were provided by Gil Compo, Jeffrey Whitaker, and Prashant Sardeshmukh of University of Colorado/CIRES/CDC and NOAA/ESRL/PSD. (More information.)

• 1938 Atlantic ‘Long Island Express’ Hurricane

Images showing reanalysis fields and their uncertainty using the 56 ensembles at each 6-hourly reconstruction

 (White to Red = convergence of realisations     Blue = divergence of realisations)

Northern and Southern Hemisphere plus tropical domain examples

(Note: The results shown below use none of the new data detailed on the ACRE WWW site)

Northern Hemisphere

MSLP and 500hPa geopotential height

Tropics

MSLP and 850hPa zonal wind

Southern Hemisphere

MSLP and 500hPa geopotential height

• Data sources
• Preliminary reanalysis products

ACRE is managed by Rob Allan