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FIRE-ACE ER-2 FLIGHT LOG |
| Author (Mission Scientist): King, Michael Date: 1998052019 Submitted at: Thu May 21 22:32:09 UT 1998 |
Mission 2 Wednesday, May 20, 1998 Michael King: Flight Scientist |
Objectives: To fly the ER-2 repeatedly over the surface site at Barrow (71°19.37'N, 156°34.9'W), coordinated with the University of Washington CV-580, followed by a flight to the SHEBA ice station (76°20.31'N, 166°37.45'W) and finally to a flight track parallel to the NOAA-14 ground track. The mission was coordinated with the CV-580 between 2009 and 2202 UTC, with the ER-2 flying flight legs between single level Arctic stratus clouds over the tundra south of Barrow, to broken clouds over the ARM site, to clear sky over the ice. The entire flight track over the Chukchi and Beaufort Seas was cloud free. Other coordinations included:
The ER-2 flew a NNE flight line from point 1 (70°17'N, 158°W) to point 2 (72°40'N, 155°W), overflying the ARM site each time, that consisted of 5 flight legs 285 km in length. Following this coordinated pattern with the CV-580, the ER-2 flew a NW flight track to point 4 (74°N, 166°37.45'W), where it turned and headed north to point 6 (77°N, 166°37.45'W), consisting of a single flight leg 333 km in length. This flight track passed over the SHEBA ice station at:
Finally, the ER-2 headed SSE on a heading of 143.76°, aligned with the NOAA-14 overpass at 2326 UTC. The AirMISR was turned on for four acquisitions over the Barrow ARM site, one over the SHEBA ice station, and one at the time of the NOAA-14 overpass. The AirMISR operated at the following times:
The ER-2 pilot reported undercast conditions over all of Alaska en route to and from Barrow, with thick Arctic stratus clouds on the south side of Barrow, with clear sky over the ice.
A single layer cloud system occurred near and to the south of Barrow, with severe clear over the Beaufort Sea. A high pressure system was located just NE of the SHEBA ice station, with low stratus to the NE. This cloud was moving toward the west, but did not move over the SHEBA ice camp at any time during the mission.
