On the frequency equation for love waves due to abrupt thickening of the crustal layer     

A. K. Mal M.Sc. 《Pure and Applied Geophysics》1962,52(1):59-68

Summary The effect of thickening of the crustal layer in mountainous region on the dispersion curve of Love waves has been studied. Perturbation method has been applied to obtain the modified frequency equation for Love waves through the surface of separation between a semi-infinite material and a layer the thickness of which abruptly increases throughout a certain length of the path. The effect is to decrease the phase velocity of the waves particularly in the low period range. It has been pointed out that by proper study, the amount of thickening may be obtained.  相似文献   

Filter apparatus for studying the sun's short-wave emission     

A.I. Efremov  A.L. Podmoshenskii  M.A. Ivanov  V.N. Nikiforov  O.N. Efimov 《Planetary and Space Science》1962,9(12):987-992

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Investigation of the Sun's X-radiation—I Measurements with the aid of geophysical rockets     

C.L. Mandel'shtam  I.P. Tindo  Yu.K. Voron'ko  A.I. Shurygin  B.N. Vasil'ev 《Planetary and Space Science》1962,9(12):977-986

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The nature of some of the characteristic details on the map of the reverse side of the moon     

A.V. Khabakov 《Planetary and Space Science》1962,9(12):961-968

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Measurements of radio noise at 0.700 mc and 2.200 mc from a high-altitude rocket probe     

G. R. Huguenin  A. E. Lilley  W. H. McDonough  M. D. Papagiannis 《Planetary and Space Science》1964,12(12):1157-1167

Radio noise observations at frequencies of 0·700 Mc and 2·200 Mc were made at altitudes between 3000 and 11,000 km from a Blue Scout Jr. high-altitude rocket probe on 30 July 1963. A steady background flux of (7·5₋₃⁺⁶) × 10⁻¹⁹ W m⁻²)(c/s)⁻¹ at 0·700 Mc and (1·8^+1.0_−0.5 × 10⁻¹⁹ W m⁻² (c/s)⁻¹ at 2·200 Mc was observed. Assuming a galactic origin of the observed fluxes at both frequencies, the averaged sky brightnesses are b(0·700 Mc) = (6₋₃⁺⁵) × 10⁻²⁰ W m⁻² (c/s)⁻¹ sr⁻¹b(2·200 Mc) = (1.4^+1.0_−0.5 × 10⁻²⁰ W m⁻² (c/s)⁻¹ sr⁻¹ The observed brightness at 2·200 Mc is in reasonable agreement with the results of other observers. The apparent brightness at 0·700 Mc is, however, greater than was expected from previous observations. An alternative source of the 0·700 Mc flux in the terrestrial exosphere, as well as characteristics of several noise bursts observed during the flight, is briefly discussed.  相似文献   

Disturbances in an infinite slab due to torsional forces applied on a cylindrical cavity     

A. B. Roy M. Sc. 《Pure and Applied Geophysics》1963,56(1):53-57

Summary The paper deals with the disturbances in an infinite slab of finite thickness, the medium being homogeneous, isotropic and perfectly elastic.  相似文献   

Correlation of atmospheric occurences over the United States with some physical and chemical parameters. Part III: Frequencies of precipitation     

Alberto C. Montefinale  Liliana A. Masironi  Henry M. Papée 《Pure and Applied Geophysics》1963,54(1):207-211

Summary Correlation between some physical and chemical variables, measured at 28 stations of the United States Weather Bureau Network, and seasonal and annual frequencies of precipitation, has been attempted with the aim of gaining insight into the bearing of such variables, on occurrence of precipitation. — Concurrent trends of frequencies with local temperature functions, altitude parameters, precipitable water vapour increments, and some chemical species have been found.Contribution of the «Centro Nucleazione Aerosoli» of the National Research Council of Italy, Via Vettore 4 (Monte Sacro),Roma.  相似文献   

The Value of State Ground-Water Agencies to the Small Water Well Contractor     

A. C. Walker 《Ground water》1963,1(1):4-7

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Equivalent thickness of the outer ionosphere obtained by evaluation of Faraday records     

E. Argence  R. Eyfrig  H. A. Hess  A. Paul  K. Rawer 《Planetary and Space Science》1963,11(12):1431-1457

With an appropriate system of higher order approximations the Faraday-effect is calculated for instantaneous ionospheric models the data of which are derived from the results of vertical soundings. Only one parameter which corresponds to the thickness of the outer ionosphere is left open; it is determined by global comparison with simultaneous Faraday-observations of satellite emissions. The thickness parameter shows various forms of variation with latitude; an increase towards north is the rule for quiet daytime conditions. Comparison with local methods shows considerable differences due to the indetermination of the absolute number of rotations.  相似文献   

Note on the propagation of waves from a spherical cavity in an infinite solid     

S. K. Chakraborty  A. B. Roy 《Pure and Applied Geophysics》1965,60(1):23-28

Summary The present note, as its title implies, is concerned with the investigation of disturbances in an infinite elastic medium containing an initial magnetic field in the axial direction. The equations ofMaxwell, those of elasticity have been effectively made use of to solve the problem.  相似文献