Accession Number : ADA265295


Title :   An Investigation of the Near Earth Space Environments


Descriptive Note : Annual progress rept. 1 Jan-31 Dec 1992


Corporate Author : JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB


Personal Author(s) : Meng, Ching I


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a265295.pdf


Report Date : Jan 1993


Pagination or Media Count : 12


Abstract : Progress has been made in four areas: (1) Mapping the different regions of the magnetosphere into the ionosphere under varying solar wind conditions. This research is relevant to future USAF operational systems needs in that the environment experienced by a spacecraft differs greatly depending on the region being transited. (2) Understanding the convection surge mechanism in the magnetotail. (3) Determining the plasma source region for dayside auroral emissions through coordinated satellite imagery and particle data. (4) Creating a new interpretation of dayside auroral transients, involving directly driven ionospheric response to magnetosheath changes.


Descriptors :   *IONOSPHERE , *AURORAE , *SOLAR WIND , *MAGNETOSPHERE , TRANSIENTS , SPACECRAFT , PLASMAS(PHYSICS) , ARTIFICIAL SATELLITES , CONVECTION(ATMOSPHERIC) , AIR FORCE OPERATIONS , MAPPING , PARTICLES , SPACE ENVIRONMENTS , EMISSION


Subject Categories : Atmospheric Physics


Distribution Statement : APPROVED FOR PUBLIC RELEASE