2001-07-31 (Flight #1880)

Aircraft Flight Summary Date: 2001-07-31 Flight Time: 14:24 to 20:04 UTC Data Time: 14:40 to 19:45 UTC Aircraft Type: Convair CV-580 Flight Scientist: Prof. Peter Hobbs Flight Number: 1880 Mission Location: Atlantic Ocean Lat/Lon Coverage: 36.6-39.6N, 70.3-76.3W	Flight Track Map Larger image (new window) Image by U. Wash. Download KMZ/KML File (right click, save as) Download HDF Data File
Satellite Image Image Unavailable MODIS/Aqua larger image (afternoon) - unavailable Imagery by SSEC UW-Madison	Satellite Images from GOES-8

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CAR - (QuickLook)
Imagery from CAR Instrument

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Images by Dr. Charles Gatebe, NASA GSFC

Flight Direction	Flight Direction

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Flight Mission Details

By Peter Hobbs

Goals of Flight:

- Underfly Terra and ER-2 at1624 UTC at dark water buoy 44004
- BRDF at buoy 44004
- Vertical profile at buoy 44004

Accomplishments of Flight:

- Goal #1 achieved under almost clear sky conditions but low AOD
- Goal #2 achieved under almost clear sky conditions but low AOD
- Goal #3 achieved to 10, 000 ft
- Transit from buoy 44004 to Dismal Swamp with sunphotometer and aerosol measuremants en route
- BRDF at Dismal Swamp under almost clear sky conditions

Weather Conditions:

- Largely cloud-free at target areas

Instrument Problems:

- CE neph for most of flight
- DMPS

Additional Comments:

- ER-2 flew in region of buoy 44004 from about 1515-1615 UTC
- Lear and OV-10 flew
- Should be good measurements for comparison with MODIS and MISSR on Terra and/or ER-2, and for CERES BRDF of dark ocean with 10 ft waves and considerable whitecaps

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Flight Path, Timing, and Measurements

1424: Engines on

1433: Take off

1433-1438: Climb to 4,500 ft.

1438-1540: Transit toward buoy 44004 at 4,500 ft.

1540-1545: Descend to 500 ft.

1545-1600: Continue heading toward buoy at 500 ft.

1600-1626: Passes at 100 ft through buoy 44004. Terra overpass at 1624 UTC. Nearly cloudless. AOD=0.08

1626-1632: Climb to 600 ft and return to buoy.

1632-1652: Four circles for BRDF measurements of ocean close to buoy 44004; interrupted by encroaching cloud. Searched for better cloud- free area a few miles from buoy.

1652-1707: Six circles for BRDF measurements of ocean in almost cloud-free conditions.

1707-1718: Climb at 1, 000 ft/min to 10, 000 ft over buoy 44004. At 10, 000 ft AOD= 0.033.

1718-1738: Commenced return trip to Wallops decreasing altitude steadily At 1738 UTC received message from CLAMS Control that Dismal Swamp was clear on satellite and to proceed to Swamp.

1738-1853: Proceeded to Dismal Swamp passing over COVE lighthouse en route .

1853-1916: Six circles at 2, 000 ft over Dismal Swamp for BRDF measurements of fairly uniform trees under nearly cloudless conditions.

1916-1956: Return to Wallops.

1956: Touchdown at Wallops

2004: Engines off

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