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

Date: 16 Sept. 2000

UW Flight Number: 1839

Goals of Flight:

BRDF measurements over Etosha National Park, Namibia.

Period of Flight (engines on to engines off: UTC): 0709-1245

Location:

Etosha National Park.

Weather Conditions:

Cloudless over Etosha National Park.

Accomplishments:

  1. BRDF measurements over white Etosha Pan at 18 deg 58 min 22 sec south/16 deg 00 min 5 sec east.

  2. Vertical profile from 200 ft to 12,500 ft over ground-based sunphotometer in Etosha National Park (19 deg 11 min south/15 deg 55 min east).

  3. Measurements en route.

  4. Measurements in dust storm on descent into Walvis Bay.

Main Instrument Malfunctions:

No power to instruments from 0745-0750 UTC. See Squawk list.

Flight Scientist: Peter Hobbs

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

Activity

0717

Take off.

0717-0733

Climb to 11,200 ft.

0733-0830

Transit north at 11,200 ft.

0830-0836

Climb to 13,600 ft.

0836-0839

Climb to 14,700 ft.

0839-0854

Descend to 400 ft (Pilot's wind estimate at 14,000 ft: 320 mag/40 knots).

0904-0917

Five circles for BRDF measurements of white pan in Etosha National Park at 18 deg 58 min 22 sec south/16 deg 00 min 5 sec east.

0917-0920

Transit at 200 ft to 2nd BRDF site.

0920-1001

Continue transit to 2nd BRDF site at 200, 700, 1200, and 1,700 ft agl.

Five circles for BRDF measurements over Mopane trees.

1001-1018

Transit to 18.50 deg south/15.40 deg east at 200, 700, 1,200, and 2,000 ft to look for burn scar site; did not find site.

1018-???

Transit to 18.90 deg south/15.40 deg east to look for "open shrub" site; did not find site.

1040-1052

Transit to Etosha sunphotometer site at 19 deg 11 min south/15 deg 55 min east.

1052-??

Vertical profile near Etosha sunphotometer ground site from 200 ft to 15,700 ft and then down to 6,000 ft. Continuous sampling for ionic and carbonaceous filters and TEM. HC can samples in upper and lower aerosol layers.

???-1241

Transit back to Walvis Bay. Some penetrations of small cumulus clouds near Walvis Bay.
 

Measurements in dust storm on descent into Walvis Bay.

1241

Land

END