10 July 2001 (Flight #1870)
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Aircraft Flight Summary
Date: 10 July 2001
Time (Flight): 17:25 to 22:20 UTC
Time (Data): 17:39 to 22:10 UTC
Aircraft Type: Convair CV-580
Aircraft Flight Scientist: Prof. Peter Hobbs
Aircraft Flight Number: 1870
Mission Location: Atlantic Ocean
Lat/Lon Coverage: 36.3-37.9N, 74.8-75.8W
Navigation Statistics: versus Time
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Flight Track Map
Map 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 7/10/2001 15:59 UTC
Images by SSEC UW-Madison
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GOES-8 Images (satellite loop)
GOES-8 7/10/2001 17:45 to 21:45 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:
- BRDF near COVE lighthouse
- Vertical profile over buoy 44014
- BRDF over buoy 44014
Accomplishments of Flight:
- BRDF near CLAMS lighthouse
- Run at 100 ft (for AOD) from lighthouse out to east and return to lighthouse
- Ascent to 12,000 ft over lighthouse
- Descent over lighthouse with full filters at 10, 000 and 4, 000 ft
- BRDF near light house
Weather Conditions:
Generally clear, with patchy cirrus and altocumulus increasing toward end of flight
Instrument Problems:
- Pilot's GPS out during most of flight (came up toward end of flight)
- No communication link between cabin and pilot
- CNC2 intermittent
Additional Comments:
- Plans to coincide CV-580 flight with Terra overpass were scrapped earlier in day due to delay in Langley approval of CLAMS flight plans
- Due to instrument problems #1 and 2, original goals of flight were modified in flight as noted above
Photographs From Aircraft Vantage
Digitized Photographs
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1. Ship Belching Smoke |
2. Ship #2 |
3. Ship #3 |
4. Ship Plume & Haze |
5. Plume, Haze, & Cirrus |
6. BRDF Measurment |
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Images by Dr. Charles Gatebe
Flight Log by Peter Hobbs
| CV-580 Flight Log |
| Time (UTC) |
Activity |
| 1725 |
Engines on |
| 1733 |
Take off |
| 1738-1759 |
Transit to COVE lighthouse at 2,000 ft |
| 1759-1805 |
Descent over lighthouse to 600 ft |
| 1805-1819 |
Six circles at 600 ft near lighthouse for BRDF measurements |
| 1819-1823 |
Descent to 100 ft |
| 1823-1858 |
Run at 100 ft, for column aerosol optical depth measurements, from lighthouse to point south of buoy 44014 and return to lighthouse |
| 1858-1925 |
Climb over lighthouse at 500 ft/min to 12,000 ft. Climb revealed horizontal variations in aerosols over short distances, with more polluted air on landward side. |
| 1925-1942 |
Dwelled at 12,000 ft to fix baghouse before starting descent over lighthouse |
| 1942-1947 |
Descent to 10,000 ft |
| 1947-2036 |
Full set of filters at 10,000 ft for chemical composition measurements. |
| 2036-2044 |
Descent to 4,000 ft over lighthouse |
| 2044-2127 |
Full set of chemical composition measurements at 4,000 ft |
| 2127-2139 |
Descent to 600 ft over lighthouse. Repositoned aircraft to get cloudless view of sun for BRDF measurements |
| 2139-2158 |
Six circles off southern tip of Delmar peninsular for BRDF measurements. Circles crossed change in coloration of ocean, with darker (deeper?) green-blue water to the east and lighter green water to the west. |
| 2158-2215 |
Return to Wallops at 100 ft and then 1,000 ft |
| 2215 |
Land |
| 2220 |
Engines off |
Weather Summary by Fred Rose
CREATION DATE: Tuesday 10 July 2001 11:17:04 UTC.
FORECAST: Mostly Clear. Warm and humid with scattered late afternoon showers. Highs near 90, lows near 70.
GENERAL OVERVIEW: Ridge retrogrades to west in the south central plains. Trough over eastern states in place bringing a series of fronts to our door step beginning late this afternoon and tonight.
DISCUSSION: Clear skies dominate the CLAMS operation area this morning. Fog burns off quickly. Limited moisture aloft will keep skies clear through morning. As the day progresses, clouds associated with the first weak front enter the area from the north. Late afternoon showers may pop up after mission ends. By tonight a second stronger front will approach bringing a stronger line of showers. Aerosol forcast from NAAPS is for low optical depths of around 0.2 primarily consisting of sulfates.
Level-1B HDF Data Distribution Facility
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