Theoretical studies on the space CIV experiment over China

Details Theoretical studies on the space CIV experiment over China Theoretical studies on the space CIV experiment over China

May 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995adspr..15..139x&link_type=abstract

Advances in Space Research (ISSN 0273-1177), vol. 15, no. 12, p. (12)139-(12)142

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Atmospheric Ionization, Barium, Chemical Clouds, Critical Velocity, Ionospheric Sounding, Midlatitude Atmosphere, Planetary Magnetic Fields, Plasma Diffusion, Strontium, Chemical Release Modules, China, Computerized Simulation, Geomagnetism, Mathematical Models, Satellite Orbits, Satellite Sounding

Scientific paper

Recently the Active Experiment Working Group, Center for Space Science and Applied Research, has proposed a chemical release experiment program. The initial scientific object of the program is to study the critical ionization velocity (CIV) mechanism at low and middle latitudes over China. Beside of the development of the chemical module system, theoretical studies on the CIV phenomena of barium or strontium released over China are studied. We found that the angle between the release velocity and the ambient magnetic field over China is smaller than that in the same latitude region in North America and is advantageous for studying CIV phenomena and the evolution of ionized cloud along the magnetic lines. We also used a numerical simulation to simulate the evolution of chemical release clouds under various release conditions. For 1 kg barium and V-B angle equal to 60 degrees, we have a better configuration of ions clouds which can easily distinguish the ions created by CIV phenomena from that by the UV of the sunlight.

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