SUCCESS

SUCCESS 04/21/96 Mission Daily Schedule
The DC-8 and ER-2 flew a coordinated mission over the CART site to measure radiation and to profile optically thick cirrus, and over Texas to measure convective cloud inflow and outflow. For the radiation part, both the ER-2 and DC-8 flew up and down wind legs over the CART site ending with the DC-8 near the cirrus base in position to ascend in altitude for cirrus profiling. Although, the DC-8 made numerous passes through its own contrails it was unable to remain in any of them due to the low visibility provided by the cirrus.
SUCCESS 04/20/96 Mission Daily Schedule
The DC-8 and ER-2 flew a coordinated cirrus cloud profiling mission over the CART site, where only patchy, optically thin cirrus (and halos) were observed during the entire day. Both ER-2 and DC-8 flew up/down-wind legs over the CART site. Only the first leg was coordinated for a radiation measurement time-series, with the DC-8 below the cirrus deck. For the cirrus profiling the DC-8 ascended in an up/down-wind flight-leg racetrack pattern and descended in slow spirals near the CART-site. The ER-2 observed lots of cirrus and contrails over the CART site.
SUCCESS 04/18/96 Mission Daily Schedule
The DC-8 sampled the T-39 exhaust plume without contrails. The DC-8 also detected a weak tropopause fold. The T-39 provided emissions for the DC-8 to sample and also sampled the DC-8 emissions. The T-39 was able to fly at a fixed position (20-50 meters behind the DC-8) and sample the exhaust of the individual inboard engines.

Highlights

Flight Reports

Mission Summary

DC-8 SUCCESS flight #205 [960205] (scientist: Eric Jensen)

SUCCESS 04/16/96 Mission Daily Schedule
The T-39, DC-8 and ER-2 flew a coordinated mission over the CART site, under patchy cirrus clouds. The T-39 created contrails (by flying circles) upwind of the CART site. At the same altitude, but downwind of the CART site, the DC-8 flew perpendicular to the wind-direction to sample the remnants of the T-39 contrails, which were not too persistent to be easily identified, and to profile the patchy cirrus cloud-field. The ER-2, while flying an wind pattern, observed the other aircraft from above them.
SUCCESS 04/15/96 Mission Daily Schedule
The T-39, DC-8 and ER-2 flew a coordinated mission over the CART site, with the DC-8 and T-39 sampling each others exhaust plume while the ER-2 flew a racetrack pattern above them. The T-39 measured the DC-8 plume at distances from 0.8km-8.0km. The DC-8 reported that the tropopause was too warm for contrail formation, however, the T-39 observed short lived contrails (1km-2km) from commercial aircraft at 32kft west of the CART site. Clear skies/low level cumulus was reported by all three aircraft.

Highlights

ER-2 lidar data from 04/15

SUCCESS 04/13/96 Mission Daily Schedule
The ER-2 flew five, figure eight, overpasses of the CART site, with the last leg extended to overfly a convective cloud deck. The DC8 flew also.

Highlights

ER-2 lidar data from 4/13

Flight Reports

ER-2 Flight: 96102

Date: April 13, 1996

Mission: Radiation Measurement Mission Over ARM Site

Mission Objectives

Atmospheric radiation measurements over the ARM CART site. Comparison of ER-2 downlooking with surface based uplooking instruments.

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