Accession Number : AD0433133


Title :   TIME VARIATIONS IN COSMIC RAYS AND RADIOSONDE MEASUREMENTS.


Descriptive Note : Final technical rept.,


Corporate Author : UNIVERSIDAD MAYOR DE SAN ANDRES LA PAZ (BOLIVIA)


Personal Author(s) : Escobar,Ismael


Report Date : Jun 1963


Pagination or Media Count : 105


Abstract : The study of cosmic ray intensity variations provides information regarding the parameters that characterize the sola9 wind at any give5 time. The study of quiet day solar diurnal variation of cosmic rays indicates that solar wind velovity is usually above 100 km/sec and it undergoes a 22-year cyclic change. THE SHIFT TO EARLIER HOURS OF THE TIME OF MAXIMUM OF DISTURBED DAY SOLAR DIURNAL EARIATION OBSERVED DURING EARLY STAGES OF THE COSMIC RAY STORMS ENABLES ONE TO CHOOSE BETWEEN Parker's blast wave model and the magnetic tongue model for the configuration of interplanetary magnetic field. Observations fit the blast wave model better. A 8ualitative model, in which solar wi5d plays a major r6le, is presented to explain the gross features of the secular variation of isotropic intensity of cosmic rays in terms of currently most accepted ideas. The model requires that the interplanetary magnetic field should extend over a distance of several tens of A.U. from the sun. (Author)


Descriptors :   *ELECTROMAGNETISM , INTENSITY , GEOMAGNETISM , SOLAR WIND , SUN


Distribution Statement : APPROVED FOR PUBLIC RELEASE