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Figure H: The
dropsonde data obtained during the 17 Feb. flight has been used
operationnaly as well as after the field phase, in a better controlled
environment. The figure shows the impact of this dropsonde data
(shaded area, interval 2 mbar) on a high resolution forecast
derived from a suite run without any of the special FASTEX data,
except this particular flight. The impact in this case is to
change the amplitude towards a better, less deep, value.
The groups that provided
methods, computer programs for finding where observations should
be taken and that contributed to fund flight time of the aircraft
were NOAA/NCEP associated with Penn State university, NOAA/ETL
and the Naval Research Laboratory, all in the USA and Météo-France
and CNRS in France.
The figures on this
page are by T. Bergot, from Météo-France. |