《地震》征稿简则

正《地震》是由中国地震局地震预测研究所、中国地震学会地震预报专业委员会、中国地震学会地震流体专业委员会、中国地震学会地震电磁学专业委员会联合主办的学术性期刊。《地震》的办刊宗旨是交流地震观测     

《地震》征稿简则

《地震》是由中国地震局地震预测研究所、中国地震学会地震预报专业委员会、中国地震学会地震流体专业委员会、中国地震学会地震电磁学专业委员会联合主办的学术性期刊。《地震》刊物的办刊宗旨是以交流地震观测、地震前兆和强震机理与预测等研究成果,推动地震预报探索研究及其     

《地震》征稿简则

《地震》是由中国地震局地震预测研究所、中国地震学会地震预报专业委员会、中国地震学会地震流体专业委员会、中国地震学会地震电磁学专业委员会联合主办的学术性期刊。《地震》刊物的办刊宗旨是以交流地震观测、地震前兆和强震机理与预测等研究成果,推动地震预报探索研究及其     

《地震》征稿简则

《地震》是由中国地震局地震预测研究所、中国地震学会地震预报专业委员会、中国地震学会地震流体专业委员会、中国地震学会地震电磁学专业委员会联合主办的学术性期刊。《地震》刊物的办刊宗旨是以交流地震观测、地震前兆和强震机理与预测等研究成果,推动地震预报探索研究及其     

《地震》征稿简则

《地震》是由中国地震局地震预测研究所、中国地震学会地震预报专业委员会、中国地震学会地震流体专业委员会、中国地震学会地震电磁学专业委员会联合主办的学术性期刊。《地震》刊物的办刊宗旨是以交流地震观测、地震前兆和强震机理与预测等研究成果,推动地震预报探索研究及其     

欢迎订阅2006年度中、英文版《地震学报》

《地震学报》中、英文版由中国地震学会主办，是国内外地震工作者进行工作、科研之必备的重要文献．《地震学报》是中国地球物理学类核心期刊，并为国内外著名检索系统和文摘收录、引用．     

《地震》征稿简则

《地震》是由中国地震局地震预测研究所、中国地震学会地震预报专业委员会、中国地震学会地震流体专业委员会、中国地震学会地震电磁学专业委员会联合主办的学术性期刊。《地震》刊物的办刊宗旨是以交流地震观测、地震前兆和强震机理与预测等研究成果,推动地震预报探索研究及其     

《地震》征稿简则

《地震》是由中国地震局地震预测研究所、中国地震学会地震预报专业委员会、中国地震学会地震流体专业委员会、中国地震学会地震电磁学专业委员会联合主办的学术性期刊。《地震》刊物的办刊宗旨是以交流地震观测、地震前兆和强震机理与预测等研究成果,推动地震预报探索研究及其     

关于中国地震学会新网站开通的通知

从2 0 0 4年5月1 5日开始,中国地震学会新的网站(网址:http ://www ssoc org cn)正式开通。域名“SSOC”是因为中国地震学会“SeismologicalSocietyofChina”的缩写“SSC”已被别人注册,故只能加“O”成为“SSOC”。中国地震学会在中国科协设立的原网站:http ://www cast org cn将继续保留,但只刊登常规信息,不再发布动态信息关于中国地震学会新网站开通的通知$中国地震学会     

《地震》征稿简则

<正>《地震》是由中国地震局地震预测研究所、中国地震学会地震预报专业委员会、中国地震学会地震流体专业委员会、中国地震学会地震电磁学专业委员会联合主办的学术性期刊。《地震》的办刊宗旨是交流地震观测、地震前兆和强震机理与预测等研究成果,推动地震预报探索研究及其成果在防震减灾中的应用。读者对象主要是从事地震观测分析、地震前兆探索、地震机理与预测研究的广大地震科技工作者和相关科     

Contribution to the knowledge of the magmatic evolution by the study of the variation of the coefficient of viscosity

The determination of the coefficient of viscosity of eruptive products gives useful elements to the knowledge of possible variations of composition and physical conditions of the magmas.     

Pictorial Series of the Manifestations of the Dynamics of the Earth

Studia Geophysica et Geodaetica -     

Magnetic stratigraphy of the Ordovician in the lower reach of the Kotuy River: the age of the Bysy-Yuryakh stratum and the rate of geomagnetic reversals on the eve of the superchron

Until recently, the existing data prevented the geophysicists from accurately dating the Bysy-Yuryakh stratum, which outcrops in the middle reach of the Kotuy River, constraining the time of its formation to a wide interval from the end of the Late Cambrian to the beginning of the Silurian. The obtained paleomagnetic data unambiguously correlate the Bysy-Yuryakh stratum to the Nyaian regional stage and constrain its formation, at least a considerable part of it, by the Tremadocian. This result perfectly agrees with the data on the Bysy-Yuryakh conodonts studied in this work and yields a spectacular example of the successful application of paleomagnetic studies in solving important tasks of stratigraphy and, correspondingly, petroleum geology. Within the Bysy-Yuryakh stratum, we revealed a large normal-polarity interval corresponding to the long (>1 Ma) period when the geomagnetic reversals were absent. This result, in combination with the data for the Tremadocian and Middle–Upper Cambrian sequences of the other regions, indicates that (1) the rate of occurrence of the geomagnetic reversals on the eve of the Ordovician Moyero superchron of reversed polarity was at most one reversal per Ma; (2) the superchron does not switch on instantaneously but is preceded by a certain gradual change in the operation conditions of the dynamo mechanism which, inter alia, manifests itself by the reduction of the frequency of geomagnetic reversals with the approach of the superchron. This finding supports the views according to which a process preparing the establishment of the superchrons takes place at the core–mantle boundary.     

Evolution of the Source of the Active Region of the Sun

Geomagnetism and Aeronomy - The magnetic evolution of the active region of the Sun at the level of the photosphere has been studied. Magnetic synoptic maps of the 2007 Kitt Peak Observatory were...     

On the solution of the reverse problem of geodesics with the help of the chord

Резюме Дается вывод формул для вычислений длины хорды, длины и азимутов нормаляных сечений и длины геодезической линии эллипсоида. Применяются тригонометрические функции данных величин и постоянные принятого ргфгргнц-эллипсоида, что является целесообразным при использовании вычислителQjных машин, особенно автоматов. Рабочие формулы рекомендуются в форме (8–11).

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Dedicated to Professor František Fiala on His 85th Birthday

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Address: Veveři 95, Brno.     

On the gravimetric undulations of the geoid and the deflections of the vertical

Summary The author mentions the aims of the World-wide gravity project he established in the Ohio State University in Columbus, in 1950. He outlines the practical procedure of the gravimetric computations of the undulationsN and the vertical deflection components and and emphasizes that only by the global international cooperation and additional gravity observations at sea carried out during the last decade it has been possible to gather to Columbus the needed gravity material. Since there exist still large gravimetrically unsurveyed areas it is of vital significance to study what gravity anomalies are best to be used for these regions. The given figures concerning the accuracy of theN, and , estimated theoretically and obtained in practice, indicate that in the gravimetrically well surveyed parts of the world like in Europe and the United States we can get gravimetrically on basis of existing gravity material theN-values with accuracy of about 5–10 meters, and and with the accuracy of about 1. The geoid undulationsN are already computed in Columbus for more than 6000 points of the northern hemisphere. The sample maps show the interesting geoid of Europe and vicinity between the latitudes 60° and 30° and longitude 5° W and 30° E, drafted on basis of more than 1000N-values computed at the corners of 1°×1° squares. It is interesting to realize that the geoid undulations in all this area are positive, the extreme values being between 40 and 50 meters. The geophysical significance of the geoid maps of this kind is pointed out.     

The effect of the pollution of the ground layer of the atmosphere on the albedo

Summary A simple model is proposed suitable for studying the effect of the ground layer of the atmosphere, polluted by aerosol, on the albedo. This model is founded on solving the equation of transfer of radiative energy. The numerical results are discussed, particular attention being paid to the analysis of errors due to neglecting the multiple reflection of solar radiation on the aerosol particles. A method which would also include the multiple reflection is proposed, and the conditions under which the presence of the aerosol is responsible for an increase or decrease of the solar radiation balance on the Earth's surface, are analysed.     

On the maintenance of the axisymmetric part of the flow in the atmosphere

Summary The maintenance of the axisymmetric component of the flow in the atmosphere is investigated by means of a steady-state, quasi-geostrophic formulation of the meteorological equations. It is shown that the meridional variations in the time-averaged axisymmetric variables can be expressed as the sum of three contributions, one being due to the eddy heat transport, another to the eddy momentum transport, and a third to the convective-radiative equilibrium temperature which enters the problem through the specification of a Newtonian form of diabatic heating. The contributions by the large scale eddies are evaluated through the use of observed values for the eddy heat and momentum transports.The contributions from each of the three forcing mechanisms to the temperature and zonal wind fields are invstigated individually and found to be of about equal importance. The sum of the three contributions are also presented for the temperature, the zonal wind, the stream function associated with the mean meridional circulation and the corresponding vertical motion. Although the results fail to reproduce the main observed features of the lower stratosphere, they are found to be in good agreement with observations in the middle latitude troposphere. At any pressure level, for example, the computed mean zonal wind has a jet-like profile and the axis of the jet is found to slope to the south with height, as observed in the atmosphere.Based in part on a thesis submitted by the first author as partial fulfillment of the requirements for the Ph.D. degree at the University of Michigan. — Publication No. 194 from the Department of Meteorology and Oceanography, The University of Michigan.     

On the determination of the non-linearity of the gravimeter scale

Summary The results of two different methods of the determination of the non-linearity of the gravimeter scale are compared; the economy is discussed as well.