980822 MISSION SCIENTEST POST FLIGHT SUMMARY

Date of Mission:	22 August, 1998
Daily Mission Scientist:	Ed Zipser
Deputy Daily Mission Scientist:	Gerry Heymsfield
DC-8 Scientist:	Ed Zipser
S-POL Scientist:	Gerry Heymsfield
Project Scientist:	Robbie Hood
UND Citation II Scientist:	Jeff Stith
Water Vapor Scientist:	Harvey Melfi
Nowcasters:	Jeff Halverson

Good forecast- Bonnie behaved approximately like the forecast said she
would for most of the period, but then stopped in her tracks. NOBODY
saw that coming. WX at KCOF was essentially correct except for the
persistent shower lying over the south end of the unway all night long.
I have no idea what kept it there other than to say that it was lonely
elsewhere in the state the convection began to subside under the long
range sidence associated with Bonnie. Winds did indeed swing around to
a more northeasterly direction as expected.

Accomplished spirals and multi-level penetrations of
convective cells offshore from Melbourne, about 100-120 km NE of S-POL.
S-POL who supported the mission with volume scans.  Convective cells said
to be similar in strength to previous evening, but radar picture suggests
that they were more isolated and not connected with as large a mesoscale
area of precipitation.  Highlight of this mission was TRMM overpass at 1801
UTC which should provide an opportunity for comparison with radar and
microphysics sampling, which included altitudes from 2-7 km or higher.
Takeoff ~1700 UTC/22 Aug; landing after 1900 UT/22 Aug.  (Note:  EJZ at
S-POL; Stith and Heymsfield were a/c scientists.)

UND Tail Number:	UND N77ND
Pilot:	Kent Streibel
Take Off:	2055 UTC (98/08/22)
Landing:	2300 UTC (98/08/22)
Duration:	2.08 hrs

Mission Notes:

TRMM overflight mission.  Did sampling of moderate convective rain cells 
(Similar to 21 Aug case) while TRMM overflight at 1800Z.  Should have covered 
most of the vertical extent of the precipitation between +15 and -15 degrees
Centigrade.  Did spiral up and down through two cells that were small but 
significant rain producers at lower altitudes.  Had 2DP probe on today, which 
will improve precip estimation.  S-Pol did coordinated sector scans, but we were
a bit far away for the northern most cloud.

Problems:

CPI probe is unable to sample in heavy rain.

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