UNIVERSITY OF WASHINGTON'S CONVAIR-580 FLIGHTS FOR SAFARI-2000

Date: 14 Sept. 2000

UW Flight Number: 1838

Goals of Flight:

Measurements off Namibian and South African coasts.

Period of Flight (engines on to engines off: UTC): 0800-1232

Location:

Off coasts of Namibia and western South Africa.

Weather Conditions:

Passed through cold front on trek south.

Accomplishments:

  1. Measurements of outflow, inflow and cloud structure in small cumulus congestus in postfrontal air.

  2. Measurements of effluents from two freighter ships.

  3. Vertical profile for sunphotometer and in situ measurements from surface to 12,000 ft in fairly clean postfrontal air just behind altocumulus overhang.

Main Instrument Malfunctions:

Humidigram not working (filter destroyed on previous flight). See also Squawk List.

Flight Scientist: Peter Hobbs

Approx. UCT Time
(UTC = local time minus 2 hours)

Activity

0808

Take off.

0808-0821

Climb to 10,000 ft.

0821-0907

Transit south at 10,200 ft through frontal overhang (moderate turbulence) and into postfrontal region. Measurements of outflow, inflow and cloud structures of small cumulus congestus.

0955-1024

Measurements of effluents from first freighter ship. Two grab bags for chemistry etc.

1024-1115

Study of emissions from 2nd freighter ship. Two grab bags for chemistry etc.

1115-1130

Head back to northeast.

1130-1139

Vertical profile to 12,000 ft for sunphotometer and in situ measurements in postfrontal air just clear of altocumulus overhang.

1139-

Head back to Walvis Bay. Physical measurements in sandstorm on descent into Walvis Bay.

END