Multiple instrument studies of chemical releases and heating at arecibo. Final report, July 1990-September 1993

Technical Report · Tue Mar 01 04:00:00 EST 1994

OSTI ID:107975

Livingston, R C; Heinselman, C J; Vickrey, J F; Tsunoda, R T

The Combined Releases and Radiation Effects Satellite (CRRES) Puerto Rico experiments carried out during June and July 1992, provided an opportunity to observe the dynamics and evolution of high-altitude chemical releases at middle latitudes. Among the experiments that were conducted for the program, three large barium payloads were released into the dawn F region -- two into the natural ionosphere and one into an ionosphere modified by HF heating. Extended periods of HF modification prior to the rocket launches also provided an opportunity to study heating effects, per se. This report reviews some preliminary results from three participating instruments: (1) ion-line mapping made by the Arecibo incoherent scatter radar, (2) HF backscatter characterization and tracking of the barium cloud, and (3) transionospheric propagation diagnosis of large and medium scale structure produced by heating and the barium releases. The data that are reviewed are primarily observational and are presented with a minimum of physical interpretation. Recommendations are made for further analysis of much of the data.

• Research Organization: SRI International, Menlo Park, CA (United States)
• OSTI ID: 107975
• Report Number(s): AD-A--293219/2/XAB; CNN: Contract F19628-90-K-0036
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ALTITUDE
BARIUM
DYNAMICS
F REGION
GAS INJECTION
HIGH-FREQUENCY HEATING
IONOSPHERE
PROGRESS REPORT
PUERTO RICO