Accession Number : ADA260337


Title :   Remote Sensing of Inner Heliospheric Plasmas


Descriptive Note : Annual rept. 15 Nov 1991-14 Nov 1992


Corporate Author : CALIFORNIA UNIV SAN DIEGO LA JOLLA


Personal Author(s) : Jackson, Bernard V


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a260337.pdf


Report Date : 15 Dec 1992


Pagination or Media Count : 24


Abstract : Solar disturbances produce major effects on the corona, the solar wind, the interplanetary medium, and the Earth along with its magnetosphere. We have developed new techniques for studying plasma disturbances in the inner heliosphere by remotely sensing them. These techniques use data from the HELIOS spacecraft zodiacal light photometers, the ISEE-3 spacecraft kilometer radio- wave experiment, and a variety of other spacecraft and ground-based instruments. New in this study is our use of interplanetary scintillation (IPS) data from the Cambridge, England radio telescope. The zodiacal-light photometers on board the two HELIOS spacecraft (data coverage from 1974 to 1986) provide the first good information about the heliospheric masses and shapes of propagating disturbances. Metric and kilometric type II and type III radiation caused by shock waves and fast moving electrons respectively are another way to remotely sense the structures which propagate outward from the Sun. The best kilometric radio-wave sensing of inner heliospheric plasma is available from the ISEE-3 spacecraft, and recently we have been able to use these data to obtain crude images of the Earth's magnetosphere. The investigations into the physics of the disturbances sensed by these techniques and the ability to forecast them are underway.... Helios photometer data, Type III radio bursts, ISEE-3, Kilometric data.


Descriptors :   *PLASMAS(PHYSICS) , *RADIO WAVES , *SOLAR CORONA , *MAGNETOSPHERE , RADIATION , SHOCK WAVES , ELECTRONS , RADIO EQUIPMENT , SOLAR FLARES , RADIO TELESCOPES , SOLAR WIND , PHOTOMETERS , ZODIACAL LIGHT , SOLAR DISTURBANCES , SUN , SCINTILLATION , CORONAS , MAGNETIC STORMS , TELESCOPES , REMOTE DETECTION , GROUND BASED , IMAGES , LIGHT , SPACECRAFT


Subject Categories : Astrophysics
      Atmospheric Physics
      Geomagnetism


Distribution Statement : APPROVED FOR PUBLIC RELEASE