Influence of the IMF sector boundaries on cosmic rays and tropospheric vorticity     

Jan Laštovička  Reviewer L. Křivský 《Studia Geophysica et Geodaetica》1987,31(2):213-218

Summary The effect of the IMF sector boundary crossing (IMF SBC) in the vorticity area index (VAI) — the well-known dip in the VAI after IMF SBC — is found to be independent of the IMF SBC effect in the cosmic ray flux. This finding refutes a recent suggestion by Lundstedt [1] that the IMF SBC effect in VAI is caused by a decrease in cosmic ray flux, but supports the concept of the IMF SBC effects in the ionosphere and atmosphere developed by Latovika [2–4]. Cosmic rays seem to affect the troposphere in another way.

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¶rt;mu nu mau nam aum n ( ) a u¶rt; na¶rt;u aumu () — um uu n — a¶rt; auu m ma nm uu . mm mam nam ¶rt;a n¶rt;u ¶rt;m¶rt;a [1], m m a nuu nma uu , n¶rt;¶rt;uam nu m u u am, aum amu [2–4]. am m uu u m um a mn ¶rt;u a.

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Deep structure of the lithosphere beneath the territory of Bulgaria     

Vladislav Babuška  Jaroslava Plomerová  Edelvays Spasov  Reviewer J. Janský 《Studia Geophysica et Geodaetica》1987,31(3):266-283

Summary Teleseismic P residuals calculated for waves arriving from various azimuths and angles of incidence, and a 3-D inversion of the residuals provided the basis for characterizing the uppermost mantle structure beneath Bulgaria. The Moesian Platform and the Rhodopean Massif are two different blocks characterized by a lithosphere thickness of about 130–140 km with a zone of lithosphere thinning along their contact. Both units have opposite patterns of the directional dependence of relatively high and low P velocities. This directional dependence is interpreted by dipping anisotropic structures in the subcrustal lithosphere, which probably represent remnants of paleosubductions of an old oceanic lithosphere.

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auma u nu¶rt;u n¶rt; au aumau u au. a uu mu ¶rt;am ¶rt; aamuauu mm amuu n¶rt; au. uua nama u ¶rt;nu au, ¶rt;a au a mu um nuuum 130–140 ¶rt; uma m ¶rt; u mama. a a aamua nmun ana auum mum u u mu . ma anaa auum umnmuaa a nu aumn mm amu. mu mm n¶rt;maum a mamu na¶rt;u ma au um.

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Diurnal asymmetry of radio wave absorption on anomalous winter days     

Jan Laštovička  Reviewer L. Křivský 《Studia Geophysica et Geodaetica》1982,26(3):313-315

au uu nu a¶rt;u a amma a nu¶rt; 1966–1981 naa, m ¶rt;, auu m m, u nu u ¶rt; uu n n¶rt;, ¶rt;num nu aa ¶rt; ¶rt;a n n¶rt;. m uu aa ¶rt;u u mu u.  相似文献   

The IMF structure effects in vernal and autumnal midlatitude ionosphere     

Jan Laštovička  Reviewer L. Křivský 《Studia Geophysica et Geodaetica》1982,26(1):74-80

au a u naam u a nu¶rt; 1963–1973 . naam, m aum mun ma m mm nam aum n (II) na¶rt;am m u a uu ¶rt; u u,¶rt; ua ma u¶rt;, u u¶rt;a ma mn muna. mu u m ¶rt;u mam nm nmum n¶rt;auma amu m m mm II u a¶rt; ¶rt; n.  相似文献   

Problems in the determination of freshwater dinoflagellates (Dinophyceae)     

Dr. Jiří Popovský 《Aquatic Sciences - Research Across Boundaries》1983,45(2):365-372

According to the most recent findings mainly from the life cycles and multiplication of dinoflagellates it is shown that using only the external morphology is not sufficient for the determination of many species nor for the key. Dinoflagellates are characterized by many transient features between protozoa and algae and they cannot be introduced without difficulties.  相似文献   

The chemical compositions and surface structures of two roAp stars with lithium spots (HD 83368 and HD 60435)     

A. V. Shavrina  N. S. Polosukhina  J. Zverko  V. Khalak  V. V. Tsymbal  J. Žižňovský 《Astronomy Reports》2001,45(10):784-796

The spectra of two roAp stars have been analyzed as part of a project to study lithium in magnetic Ap stars. Variability of the Li I 6708 Å resonance doublet and rare-earth lines was detected, which can be explained using an oblique rotator model with the lithium spots located at the magnetic poles. Synthetic spectra obtained at different rotational phases have yielded the first data on the atmospheric chemical compositions of these spotted stars. Using refined atomic data and the most complete line lists has enabled a detailed study of the spectra near the Li I 6708 Å line and computation of the Li I line profile taking into account the spotted distribution of the lithium over the stellar surfaces. The positions of two lithium spots and lithium abundances for each of the spots have been determined.  相似文献   

Tilt observation before rockburst     

Lumír Skalský 《Studia Geophysica et Geodaetica》1963,7(4):396-403

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Le développement de la géodésie et cartographie tchécoslovaque de 1945 à 1960     

Josef Ryšavý 《Studia Geophysica et Geodaetica》1960,4(3):312-312

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On the reflection of spherical waves at a plane interface with refractive index near to one II     

Vlastislav Cervený 《Studia Geophysica et Geodaetica》1960,4(1):20-41

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An attempt to determine long-periodic variations in the drift of horizontal pendulums     

Petr Vaníček  Reviewer L. Skalský 《Studia Geophysica et Geodaetica》1971,15(3-4):416-420

Résumé On donne les résultats de l'analyse de la dérive des pendules horizontaux de la station Píbram-Bezové Hory au cours des années 1927–1938. Différemment aux résultats publiés déjà antérieurement[2], on a tout d'abord séparé par la méthode des moindres carrés la dérive linéaire et le terme à période de durée d'un an exactement et ce n'est que le reste qu'on a analysé par la méthode de l'analyse spectrale spéciale[4, 6]. On a trouvé dans les deux éléments une période de 222, respectivement 223 jours, non considérée jusqu'alors et ne pouvant pas être interprétée jusqu'à présent du point de vue physique. Les autres résultats sont en bon accord avec ceux reçus à l'origine. On peut conclure de la comparaison des phases des composantes annuelles des pendules horizontaux et du mouvement du pôle[5] que les deux événements sont du même origine.  相似文献