Low Angle Contact Between the Oaxaca and Juárez Terranes Deduced From Magnetotelluric Data     

Jorge A. Arzate-Flores  Roberto Molina-Garza  Fernando Corbo-Camargo  Víctor Márquez-Ramírez 《Pure and Applied Geophysics》2016,173(10-11):3357-3371

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Source Characterization and Tsunami Modeling of Submarine Landslides Along the Yucatán Shelf/Campeche Escarpment,Southern Gulf of Mexico     

Jason D. Chaytor  Eric L. Geist  Charles K. Paull  David W. Caress  Roberto Gwiazda  Jaime Urrutia Fucugauchi  Mario Rebolledo Vieyra 《Pure and Applied Geophysics》2016,173(12):4101-4116

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A Case Study of the Mechanisms Modulating the Evolution of Valley Fog     

C. Hang  D. F. Nadeau  I. Gultepe  S. W. Hoch  C. Román-Cascón  K. Pryor  H. J. S. Fernando  E. D. Creegan  L. S. Leo  Z. Silver  E. R. Pardyjak 《Pure and Applied Geophysics》2016,173(9):3011-3030

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Estimation of Seismic and Aseismic Deformation in Mexicali Valley,Baja California,Mexico, in the 2006–2009 Period,Using Precise Leveling,DInSAR, Geotechnical Instruments Data,and Modeling     

Olga Sarychikhina  Ewa Glowacka  Braulio Robles  F. Alejandro Nava  Miguel Guzmán 《Pure and Applied Geophysics》2015,172(11):3139-3162

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Identification of T-Waves in the Alboran Sea     

Enrique Carmona  Javier Almendros  Gerardo Alguacil  Juan Ignacio Soto  Francisco Luzón  Jesús M. Ibáñez 《Pure and Applied Geophysics》2015,172(11):3179-3188

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Spatial and Spectral Representations of the Geoid-to-Quasigeoid Correction     

Robert Tenzer  Christian Hirt  Sten Claessens  Pavel Novák 《Surveys in Geophysics》2015,36(5):627-658

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Kinematic interaction factors of deep foundations with inclined piles          下载免费PDF全文

Cristina Medina  Luis A. Padrón  Juan J. Aznárez  Ariel Santana  Orlando Maeso 《地震工程与结构动力学》2014,43(13):2035-2050

The beneficial or detrimental role of battered piles on the dynamic response of piled foundations has not been yet fully elucidated. In order to shed more light on this aspect, kinematic interaction factors of deep foundations with inclined piles, are provided for single‐battered piles, as well as for 2 × 2 and 3 × 3 groups of piles subjected to vertically incident plane shear S waves. Piles are modelled as linear‐elastic Bernoulli beams, whereas soil is assumed to be a linear, isotropic, homogeneous viscoelastic half‐space. Different pile group configurations, pile‐soil stiffness ratios, and rake angles are considered. The relevance and main trends observed in the influence of the rake angle on the kinematic interaction factors of the analysed foundations are inferred from the presented results. An important dependence of the kinematic interaction factors on the rake angle is observed together with the existence of an inclination angle at which cap rotation and excitation become out of phase in the low‐to‐mid frequency range. The existence of a small batter angle that provides minimum cap rotation is also shown. Copyright © 2014 John Wiley & Sons, Ltd.  相似文献   

Small Scale Earthquake Mechanisms Induced by Fluid Injection at the Enhanced Geothermal System Reservoir Soultz (Alsace) in 2003 using Alternative Source Models     

Jan Šílený  Zuzana Jechumtálová  Catherine Dorbath 《Pure and Applied Geophysics》2014,171(10):2783-2804

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Geomagnetic activity and the North Atlantic Oscillation     

Václav Bucha 《Studia Geophysica et Geodaetica》2014,58(3):461-472

The North Atlantic Oscillation (NAO) is the prominent pattern of winter climate variability that has a strong effect on weather in the North Atlantic region and the adjacent continents. At present, uncertainty prevails as to the mechanisms controlling the variability of the NAO. It is also difficult to explain why the positive phase of the NAO has prevailed over the past 37 years (1972–2008). We found high positive correlation coefficients between geomagnetic activity (used as a measure of solar wind intensity) and the NAO indices that equal 0.76 for 1962–1994 and 0.63 for 1961–2011. Positive correlations of the distribution of surface air temperature with the NAO and similarly with geomagnetic activity occur in the Northern Hemisphere. These results encourage our search for possible causes controlling the NAO. We have found that at times of high geomagnetic activity the NAO index is positive and magnetic reconnection may enable the solar wind to initiate downward winds in the magnetosphere. Wind anomalies originate at the edge of the stratospheric polar vortex and propagate downward through the troposphere taking part in the intensification of the vortex and of the westerlies. Stronger northerly winds over Greenland carry cold air southward and, together with the enhanced westerlies, advect the warm air from the Atlantic along the deep Icelandic low into Eurasia increasing temperatures there. On the other hand, at times of low geomagnetic activity, the NAO index is negative and the stratospheric polar vortex is weak. Warm air from the subtropics is carried into the Arctic and a rapid amplification of planetary waves propagating upward may cause displacement or even splitting of the weak vortex and sudden stratospheric warming. During this negative NAO phase the weakened westerlies allow more cold air to build up over North America and Eurasia.  相似文献   

Terrestrial laser scanning of rock slope instabilities          下载免费PDF全文

Antonio Abellán  Thierry Oppikofer  Michel Jaboyedoff  Nicholas J. Rosser  Michael Lim  Matthew J. Lato 《地球表面变化过程与地形》2014,39(1):80-97

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