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31 July 2001 (Flight #1880)
Aircraft Flight Summary
Date: 31 July 2001
Time (Flight): 14:24 to 20:04 UTC
Time (Data): 14:40 to 19:45 UTC
Aircraft Type: Convair CV-580
Aircraft Flight Scientist: Prof. Peter Hobbs
Aircraft Flight Number: 1880
Mission Location: Atlantic Ocean
Lat/Lon Coverage: 36.6-39.6N, 70.3-76.3W
Navigation Statistics: versus Time
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Flight Track Map
Images by U.Wash.
CAR Data Summary
Principal Investigator: Dr. Michael King
Co-PI: Dr. Charles Gatebe
Spectral Bands: Configuration
Calibration Type: Final
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MODIS Image (direct broadcast)
MODIS 7/31/2001 16:17 UTC
Images by SSEC UW-Madison
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GOES-8 Images (satellite loop)
GOES-8 7/31/2001 14:45 to 19:45 UTC
Images by NASA LaRC
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CAR - (quicklook)
Imagery from CAR Instrument
(RGB = 1.04, 0.87, 0.47 microns)
Click browse image thumbnail to load more detailed version
Images by Dr. Charles Gatebe
Flight (Mission) Detail 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
Photographs From Aircraft Vantage
Digitized Photographs
Click photograph thumbnail to load more detailed version
15:38 Cumulus |
15:39 Cumulus |
15:45 Sct. Cumulus |
15:46 Sct. Cumulus |
16:09 White Caps |
16:11 White Caps |
16:37 BRDF Site |
18:47 Eastern Shore |
18:52 Lake Drummond |
18:56 BRDF Site |
18:59 BRDF Site |
19:00 Dismal Swamp |
19:02 Dismal Swamp |
19:06 Dismal Swamp |
19:09 Dismal Swamp |
19:10 Dismal Swamp |
19:23 Norfolk, VA |
19:28 Norfolk, VA |
19:29 Bay Brdg & Tun |
19:29 Bay Brdg & Tun |
19:30 Bay Brdg & Tun |
19:32 Fisherman's Is. |
19:59 Wal.Flt.Fac |
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Images by Dr. Charles Gatebe
Flight Log by Peter Hobbs
| CV-580 Flight Log |
| Time (UTC) |
Activity |
| 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 |
Weather Summary by Fred Rose
CREATION DATE: Tuesday, 31 July 2001 13:39 UTC
FORECAST: Mostly Clear with warming trend. Highs in the 80's. Lows upper 60's.
GENERAL OVERVIEW: Low pressure SE of Cape Cod moves NE. High Pressure established over COVE area. Winds @ 20kts from N-NE at Buoy 44004. Seas 9ft. Winds @ 13kts from N-NE at Buoy 44009. Seas 7ft.
DISCUSSION: As Low pressure departs the 44004 bouy will stay mostly clear thru this afternoon. Some low level cumulus should be found along the flight leg out. Area near Chesapeake Lighthouse to remain mostly clear for the next 2 days through Thursday. Over land (Dismal Swamp) remaining low-level moisture should give scattered cumulus during mid-day. Late afternoon should see diminishing clouds over land with clear skies by evening. Aerosol loading to be small with some increase expected later in the week.
Level-1B HDF Data Distribution Facility
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