TIME VARIATIONS IN COSMIC RAYS AND RADIOSONDE MEASUREMENTS. Final Technical Report

Technical Report · Sat Jun 01 04:00:00 EDT 1963

OSTI ID:4013109

Escobar, I

Theory for the relation of cosmic ray intensity variation to the solar wind and the associated interplanetary magnetic field variations is discussed in relation to experimenthl dath. Dath on the quiet-day solar diurnal variation of cosmic rays indicate that solar wind velocity is usually above 100 km/sec and that the wind velocity undergoes a 22-year cyclic change. Also it is demonstrated that the shift to earlier hours of the time of maximum of disturbed day solar diurnal variation observed during early stages of the cosmic ray storms permits a selection between Parker's blast wave model and the magnetic tongue model advocated by Gold for the configuration of interplanethry magnetic field obthinable on geomagnetically disturbed days. Observations fit the blast wave model better. A qualitative model in which solar wind plays a major role, is presented to explain the gross features of the secular variation of isotropic intensity of cosmic rays in terms of currentiy accepted ideas. The model requires that the interplanetary magnetic field should extend over a distance amounting to several tens of A.U. from the sun. The results of an attempt to calculate the configuration of solar plasma in space at the time of a solar flare are also presented, together with meteorological data obtained with radiosonde equipment at Ouejuyo at 30,000 M. 40 references. (auth)

• Research Organization: Universidad Mayor de San Andres, La Paz, Bolivia. Laboratorio de Fisica Cosmica de Chacaltaya
• NSA Number: NSA-18-020814
• OSTI ID: 4013109
• Report Number(s): AD-434540
• Country of Publication: United States
• Language: English

Related Subjects

BALLOONS
BIBLIOGRAPHY
CONFIGURATION
COSMIC RADIATION
DIURNAL VARIATION
INSTRUMENTS
LEVELS
MAGNETIC FIELDS
MATRICES
METEOROLOGY
NUMERICALS
PHYSICS
PLASMA
SECULAR EQUATION
SOLAR FLARES
SPACE
STRATOSPHERE
SUN
VARIATIONS
VELOCITY