Central California Ozone Study (CCOS) - Desert Research Institute

CCOS Field Operations Plan Version 2: 5/31/00
Figure 2.6-6 shows that the fight plans differ mainly in the north. One the return ferry
(7/12), the departure out of Redding swings out to the coast, then back inland to Klamath Falls to
capture more information related to the northern inflow boundary. Both patterns provide two
looks at the horizontal distribution of pollutants between Fresno and Bakersfield; these can be
flown at different altitudes. Except for landings and takeoffs at Redding and Fresno, all flight
segments will be at roughly constant altitude with no other low level passes or spirals. Redding
serves as a refueling point for both flights.
Table 2.6-14. PSC-FAT ferry flight
N Latitude W Longitude Distance Time
WP Location DD MM DD MM kilometers naut. miles (minutes)
0 Pasco (PSC) 46 16 119 7
274.3 148.0 45.7
1 Redmond (RDM) 44 15 121 8
239.0 129.0 39.8
2 Kalamath Falls 42 9 121 43
187.5 101.2 31.3
3 Redding 40 31 122 18
237.9 128.4 39.7
4 Placerville 38 44 120 46
148.6 80.2 24.8
5 Mariposa-Yosemite 37 31 120 3
97.3 52.5 16.2
6 Harris River (MKR) 36 47 119 27
103.7 56.0 17.3
7 Porterville 35 55 119 1
94.8 51.1 15.8
8 Taft-Kern Co. 35 8 119 26
56.2 30.3 9.4
9 DiGiorgio 35 15 118 50
75.8 40.9 12.6
7 Porterville 35 55 119 1
103.7 56.0 17.3
6 Harris River (MKR) 36 47 119 27
22.3 12.0 3.7
10 Fresno (FAT) 36 47 119 42
Total 1641.2 885.6 273.5
Schedule of G-1 Activity
Table 2.6-16 gives our anticipated schedule for research flights. No flights are scheduled
for the holiday weekend for two reasons. First, many CCOS surface sites may not be operational
thereby reducing the value of data aloft. Second, high general aviation traffic during the Fourth
of July weekend holiday (7/1-7/4) poses safety concerns for a fast, heavy aircraft like the G-1
operating at low altitude over an area (south central San Joaquin Valley) that is densely
populated with small airports. Rest days bracket the pair of over ocean flights because of the
Chapter 2: FIELD MEASUREMENTS 2-69