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Data: Clams 2001 Flight #1879

2001-07-30 (Flight #1879)

Aircraft Flight Summary

Date: 2001-07-30
Flight Time: 16:09 to 19:51 UTC
Data Time: 16:23 to 19:30 UTC
Aircraft Type: Convair CV-580
Flight Scientist: Prof. Peter Hobbs
Flight Number: 1879
Mission Location: Atlantic Ocean
Lat/Lon Coverage: 36.5-37.9N, 74.4-75.8W

Flight Track Map

Flight track for flight 1879

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GOES-8 satellite loop for flight number 1879


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Flight Mission Details

By Peter Hobbs

Goals of Flight:

- Underfly ER-2 off coast for sunphotometer and aerosol profiles in cloud-free holes
- BRDFs near COVE lighthouse and buoy 44014 in best cloud-free areas that can be found

Accomplishments of Flight:

- Goal #1 achieved in various locations beneath ER-2 and off Delmava peninsula
- BRDFs in partly cloudy conditions near COVE lighthouse, near buoy 44014 and off southern tip of Delmava peninsula
- Intergrated filters over low altitudes

Weather Conditions:

- Cloudy

Instrument Problems:

- CE neph

Additional Comments:

- ER-2, Proteus, and OV-10 flew.
- Terra satellite overpass prior to CV-580 flight.
- Air quite clean after frontal passage and heavy rains previous day


Flight Path, Timing, and Measurements

1609: Engines on

1617: Take off

1617-1634: Climb and head toward COVE lighthouse at 2,000 ft.

1634-1640: Run at 100 ft toward lighthouse in cloudy conditions.

1640-1645: Search for best cloud-free area near lighthouse.

1645-1655: Five circles at 600 ft for BRDF measurements. near lighthouse. Some cloud present.

1655-1706: Run at 100 ft looking for best cloud-free hole in which to do vertical profile near lighthouse.

1706-1719: Climb at 1,000 ft/min from 100 ft to 10,000 ft.

1719-1739: Slow descent to 100 ft near lighthouse.

1739-1743: Run at 100 ft east of lighthouse.

1743-1801: Climb to 5, 500 ft and head to buoy 44014 in and out of altocumulus cloud for some cloud structure measurements.

1801-1807: Search for best cloud-free region for BRDF measurements near buoy.

1816-1831: Five circles at 600 ft for BRDF measurements northeast of buoy 44014 in partly cloudy conditions.

1831-1837: Climb to 5, 500 ft through cloud-free region near buoy 44014.

1837-1854: Head back to COVE lighthouse in clean, cloud-free air at 8, 000ft (looking for cloud-free regions).

1854-1900: Descend to 1,500 ft near lighthouse in cloud-free region.

1900-1904: Search for cloud-free region near lighthouse for BRDF measurements.

1904-1921: Six circles for BRDF measurements at 600 ft. ( at 37 deg 6 min/75 deg 35 min) in best cloud-free region of the flight .

1921-1946: Return to Wallops (with run at 100 ft from about 1925-1928 in good cloud-free region).

1946: Touchdown at Wallops

1951: Engines off


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