Modification of the upper atmosphere with chemicals found in rocket exhaust

Conference · Fri Jan 01 00:00:00 EST 1982

DOI:https://doi.org/10.2514/6.1982-145· OSTI ID:5590928

Bernhardt, P A; Zinn, J; Mendillo, M; Baumgardner, J

Rockets, burning above 200 km altitude, release exhaust vapors which react chemically with the plasma comprising the F-region ionosphere. The two major types of atmospheric modification produced by rocket exhaust are: (1) the formation of large scale ionospheric holes, and (2) the enhancement of the airglow emissions. The ionospheric holes are regions tens of kilometers in diameter where the plasma concentration can be reduced by a factor of ten or more. Plasma instabilities may produce irregularities at the edges of the holes. Communication and navigation systems relying on radio propagation through the modified ionosphere may be affected. Airglow enhancements are a result of excited neutral species being produced by chemical reactions between the rocket exhaust and the ionospheric plasma. For example, the 630 nm line from atomic oxygen may increase twenty-fold in intensity over the ambient level. This paper reviews experimental observations and theoretical treatments of ionospheric modification produced by gas releases in the upper atmosphere. Recent experimental measurements of the ionospheric modification by an ATLAS-F launch vehicle are presented. The plans for future experiments are discussed.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Boston Univ., MA (USA). Dept. of Astronomy
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5590928
• Report Number(s): LA-UR-82-61; CONF-820106-4; ON: DE82010411
• Resource Relation: Conference: 20. aerospace science conference, Orlando, FL, USA, 11 Jan 1982
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
EXHAUST GASES
CHEMICAL REACTIONS
ROCKETS
ENVIRONMENTAL IMPACTS
AIRGLOW
F REGION
PLASMA DENSITY
PLASMA INSTABILITY
EARTH ATMOSPHERE
FLUIDS
GASEOUS WASTES
GASES
INSTABILITY
IONOSPHERE
PLANETARY IONOSPHERES
WASTES
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)