Accession Number : ADA464989


Title :   Satellite Remote Sensing of Atmospheric Meteoric Ions and Neutral Species


Descriptive Note : Final rept. 1 Oct 2003-30 Sep 2006


Corporate Author : CATHOLIC UNIV OF AMERICA WASHINGTON DC DEPT OF PHYSICS


Personal Author(s) : Aikin, Arthur C.


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA464989


Report Date : 30 SEP 2006


Pagination or Media Count : 15


Abstract : Radiances measured with the GOME spectrometer on the ERS-2 satellite are used to derive the total content of the meteoric metal species Mg+, Mg, Fe+ and Fe. A retrieval algorithm has been developed and applied to determine the species content on a global scale for the year 1996. Results show total content for all the species has a maximum in late summer in both the northern and southern hemispheres. The content of neutrals relative to ions decreases in summer and the same ratio increases in winter. The content of Fe+ is approximately equal to that of Fe. In contrast the Mg+ content is twice that of Mg. The Fe content is five to ten times that of the Mg content. An examination of the content around the times of known meteor showers shows no measurable increases during or following the showers.


Descriptors :   *IONS , *METALS , *METEORS , *UPPER ATMOSPHERE , REMOTE DETECTION , SPECTROMETERS , SCIENTIFIC SATELLITES


Subject Categories : ATMOSPHERIC PHYSICS
      ATOMIC AND MOLECULAR PHYSICS AND SPECTROSCOPY
      NUCLEAR INSTRUMENTATION


Distribution Statement : APPROVED FOR PUBLIC RELEASE