Title: C130 Suggested Averaging Times

Contact:

   Barry J. Huebert
   Department of Oceanography
   University of Hawaii
   1000 Pope Road
   Honolulu, HI, USA, 96822
   Telephone: (808) 956-6896
   Facsimile: (808) 956-9225
   E-Mail Address: huebert@okika.soest.hawaii.edu


Data Set Description:

A. Huebert Impactor Sampling Times And Flight Leg Statistics
B. Leg Average Locations and Times for Trajectory Analyses
20 Nov 96

When definable conditions existed for an extended period that did not
correspond to a filter sample, the times for those "announced flight legs"
were included, so that trajectories could be run  for those times.
On flights from one airport to another, the data collectors have tried
to identify legs of relatively constant altitude, even though they
were not defined legs in the same sense as the circular patterns
from local flights.

If you wish to average data to correspond to our filter samples, use the
"Start Fltr" and "Stop Fltr" times. If you wish to average data over
announced flight-legs, use the "Start Leg" and "Stop Leg" times.
If a filter was exposed, the average Lat, Lon, Palt, and midtime below
refer to averages over filter (not leg) times.

The pressure altitudes in this table are directly from the April 96 RAF
data set. Some are negative, and all are to be used with extreme caution.
If you wish to do a zero-order offset correction, the lowest daytime legs
were usually 30 m and the lowest nighttime legs were usually 150m.

Format: TAB-delimited ASCII file.

sampler
flight#
day
Start Fltr hh:mm:ss (UTC)
Stop Fltr hh:mm:ss (UTC)
MidTime hh:mm:ss (UTC)
LatAv Deg.dec
LonAv Deg.dec
PaltAv m
Start Leg hh:mm:ss (UTC)
Stop Leg hh:mm:ss (UTC)
Del Start
Del Stop

File Name Conventions:
   avglegsh.dat

References: None.