ECMWF analysis plots for CARIBIC flight 313 from Frankfurt to Caracas on 20 October 2010



The PV map and X-sction show that a small deep trough/PV anomaly was sampled near end of flight just before descent.
The trajectories for 17-20h show air was lifted up from the boundary layer in the north of South America.

Trajectories

5-day backward: All // 10-11h / 11-12h / 12-13h / 13-14h / 14-15h / 15-16h / 16-17h / 17-18h / 18-19h / 19-20h / 20-21h
8-day backward WAS: 01 /02 /03 /04 /05 /06 /07 /08 /09 /10 /11 /12 /13 /14
8-day backward WAS volume: 01 /02 /03 /04 /05 /06 /07 /08 /09 /10 /11 /12 /13 /14
2-day forward: All

"Surface" maps
Level (hPa) - - - - - - -
10102000+012 Total CC Low CC Medium CC High CC H2O column 6hr LS Prec 6hr Con Prec

Pressure level maps
Level (hPa) 250 250 250 250 500 250 500 250 700
10102012 PV Z Wind W W Spec hum RH RH EpotT

Vertical X-sections
Pressure versus time PV Eq pot T Spec hum RH Wetb potT U V W Cloud water Cloud ice Cloud cover

ECMWF and measured parameters as a function of UT
P P+tropop. geop.Z+tropop. PV PV+tropop. Pott.T Pott.T+tropop. T T+tropop. Wind speed Wind dir w=dp/dt H2O mix.ratio RH Cloud cover Liquid/Ice water
Model data interpolated along track: file1 (meteo)// file2 (clouds) // file3 (tropopause)

Satellite imagery
Global infrared cloud composites on 20-10-2010 at 12, 15 and 18 UTC
Global water vapour composites on 25-10-2010 at 12, 15 and 18 UTC
(Courtesy of SSEC at the Univ. of Wisconsin-Madison's Graduate School.)