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American Geophysical Union |
Documentos disponibles de esta editorial (78)
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Young, Paul J. ; Butler, Amy H. ; Calvo Fernández, Natalia ; Haimberger, Leopold ; Kushner, Paul J. ; Marsh, Daniel R. ; Randel, William J. ; Rosenlof, Karen H. | American Geophysical Union | 2013-01-27We present a comparison of temperature trends using different satellite and radiosonde observations and climate (GCM) and chemistry-climate model (CCM) outputs, focusing on the role of photochemical ozone depletion in the Antarctic lower stratos[...]texto impreso
Analyses of the effective elastic thickness of the Martian lithosphere have been previously used to calculate surface heat flow on Mars at different places and times. In this work, I use elevation differences in a putative Late Hesperian shoreli[...]texto impreso
Jiménez, P. A. ; Dudhia, J. ; González Rouco, J. Fidel ; Montávez, J. P. ; García Bustamante, E. ; Navarro, J. ; Vilà-Guerau de Arellano, J. ; Múñoz Roldán, A. | American Geophysical Union | 2013-07-27The performance of the Weather Research and Forecasting (WRF) model to reproduce the surface wind circulations over complex terrain is examined. The atmospheric evolution is simulated using two versions of the WRF model during an over 13year per[...]texto impreso
Arrillaga Mitxelena, Jon Ander ; Jiménez, Pedro ; Vilá Guerau de Arellano, Jordi ; Jiménez, María A. ; Román Cascón, Carlos ; Sastre Marugán, Mariano ; Yagüe Anguis, Carlos | American Geophysical Union | 2020-02-27Sea breeze (SB) frontal passages, the relevant factors influencing their formation and their interaction with local turbulence, are analyzed. To proceed, numerical simulations from the Weather Research and Forecasting (WRF) model are compared wi[...]texto impreso
Barriopedro Cepero, David ; Gomez Escolar, M. ; Fueglistaler, S. ; Calvo Fernández, Natalia | American Geophysical Union | 2012-11-22Stratospheric Sudden Warmings (SSWs) strongly affect the polar stratosphere during winter months mainly in the Northern Hemisphere. The intraseasonal distribution and type of SSWs for the 1958-1979 and 1979-2002 periods in ERA-40 and NCEP-NCAR r[...]texto impreso
Evans, N. M. ; Smerdon, J. E. ; Kaplan, A. ; Tolwinski-Ward, S. E. ; González Rouco, J. Fidel | American Geophysical Union | 2014-12Climate field reconstructions (CFRs) of the global annual surface air temperature (SAT) field and associated global area-weighted mean annual temperature (GMAT) are derived in a collection of pseudoproxy experiments for the past millennium. Pseu[...]texto impreso
Torre, Laura de la ; Garcial, Rolando R. ; Barriopedro Cepero, David ; Chandran, Amal | American Geophysical Union | 2012-02-25Major stratospheric sudden warmings (SSW) occurring during Northern Hemisphere winter were identified in four runs of the Whole Atmosphere Community Climate Model (WACCM). Their characteristics are compared to those found by other authors using [...]texto impreso
Smerdon, Jason E. ; González Rouco, J. Fidel ; Zorita, Eduardo | American Geophysical Union | 2008-09-19texto impreso
MacDougall, Andrew H. ; Beltrami, Hugo ; González Rouco, J. Fidel ; Stevens, M. Bruce ; Bourlon, Evelise | American Geophysical Union | 2010-06-18Heat fluxes in the continental subsurface were estimated from general circulation model (GCM) simulations of the climate of the last millennium and compared to those obtained from subsurface geothermal data. Since GCMs have bottom boundary condi[...]texto impreso
Ribera, P. ; Peña Ortiz, C. ; García Herrera, Ricardo ; Gallego, D. ; Gimeno, L. ; Hernández Martín, Emiliano | American Geophysical Union | 2004-09-23The quasi-biennial oscillation (QBO) signal in stratospheric zonal and meridional wind, temperature, and geopotential height fields is analyzed based on the use of the National Centers for Environmental Prediction (NCEP) reanalysis (1958-2001). [...]texto impreso
Gutiérrez Alonso, Gabriel ; Fernández Suárez, Javier ; Jeffries, Teresa E. ; Johnston, Stephen T. | American Geophysical Union | 2011U?Pb (zircon) crystallization ages of 52 late?Variscan granitoid intrusions from NW Iberia (19 from new data, 33 from previous studies) constrain the lithospheric evolution of this realm of the Variscan belt of Western Europe and allow assessmen[...]texto impreso
Barriopedro Cepero, David ; García Herrera, Ricardo ; Lionello, Piero ; Pino, Cosimo | American Geophysical Union | 2010-07-01This study explores the long-term frequency variability of high-surge events (HSEs) in the North Adriatic, the so-called acqua alta, which, particularly during autumn, cause flooding of the historical city center of Venice. The period 1948-2008,[...]texto impreso
The dynamical connection between Northern Hemisphere blocking events and the variability of the stratospheric polar vortex strength is studied. The analysis is based on the composite time evolution of the energy of baroclinic planetary waves dur[...]texto impreso
Díez Fernández, Rubén ; Jiménez Díaz, Alberto ; Arenas Martín, Ricardo ; Pereira, M. Francisco ; Fernández Suárez, Javier | American Geophysical Union | 2019-01The Calzadilla Ophiolite is an ensemble of mafic and ultramafic rocks that represents the transition between lower crust and upper mantle of a Cadomian (peri?Gondwanan) fore arc. Mapping and structural analysis of the ophiolite demonstrates that[...]texto impreso
Stevens, M. Bruce ; Smerdon, Jason E. ; González Rouco, J. Fidel ; Stieglitz, Marc ; Beltrami, Hugo | American Geophysical Union | 2007-01-18[1] A one-dimensional soil model is used to estimate the influence of the position of the bottom boundary condition on heat storage calculations in land-surface components of General Circulation Models (GCMs). It is shown that shallow boundary c[...]texto impreso
Calvín Ballester, Pablo ; Ruíz Martínez, Vicente Carlos ; Villalaín Santamaría, Juan José ; Casa Sainz, Antonio María ; Moussaid, Bennacer | American Geophysical Union | 2017-12A paleomagnetic and magnetic fabric study is performed in Upper Jurassic gabbros of the central High Atlas (Morocco). These gabbros were emplaced in the core of preexisting structures developed during the extensional stage and linked to basement[...]texto impreso
Wu, Yutian ; Orbe, Clara ; Tilme, Simone ; Ábalos Álvarez, Marta ; Wang, Xinyue | American Geophysical Union | 2020This study identifies the fast (i.e., ? days–weeks) transport pathways that connect the Northern Hemisphere surface to the upper troposphere and lower stratosphere (UTLS) during northern summer by integrating a large (90 member) ensemble of Boun[...]texto impreso
Peña Ortiz, C. ; Ribera, P. ; García Herrera, Ricardo ; Giorgetta, M. A. ; García, R. R. | American Geophysical Union | 2008-08-21The seasonality of the quasi-biennial oscillation (QBO) and its secondary circulation is analyzed in the European Reanalysis (ERA-40) and Middle Atmosphere European Centre Hamburg Model (MAECHAM5) general circulation model data sets through the [...]texto impreso
In the Hercynian Anatectic Complex of Toledo (ACT) the anatectic granitoids include leucogranitic leucosomes, leucogranitic massifs, and restite-rich granites. They show a broad range of initial Sr and Nd isotope ratios from 0.71 I to 0.720 and [...]texto impreso
Someo f the geologicafle atureso n the surfaceo f Europa'si ce shells uggestth e existenceo f a brittlel ithosphereth ati n somer egionsis no moret han2 km thick.T he surfaceh eatf low neededt o put the brittle-ductiletr ansitionin ice at a dept[...]texto impreso
Trigo, Ricardo Machado ; García Herrera, Ricardo ; Díaz, Julio ; Trigo, Isabel Franco ; Valente, María Antonia | American Geophysical Union | 2005-05-18The summer of 2003 was characterised by exceptionally warm weather in Europe with the average temperature exceeding that of any previous summer over the last 500 years. The seasonal 2003 summer temperature for central Europe was beyond the histo[...]texto impreso
Taramón, Jorge M. ; Rodríguez González, Juan ; Negredo Moreno, Ana María ; Billen, Magali I. | American Geophysical Union | 2015-09Several mechanisms have been suggested for the formation of flat slabs including buoyant features on the subducting plate, trenchward motion and thermal or cratonic structure of the overriding plate. Analysis of episodes of flat subduction indic[...]texto impreso
Richter, Jadwiga H. ; Matthes, Katja ; Calvo Fernández, Natalia ; Gray, Lesley J. | American Geophysical Union | 2011-10-21Stratospheric sudden warmings (SSWs) are a major source of variability during Northern Hemisphere winter. The frequency of occurrence of SSWs is influenced by El Nino-Southern Oscillation (ENSO), the quasi-biennial oscillation (QBO), the 11 year[...]texto impreso
Williams, Jean-Pierre ; Ruiz Pérez, Javier ; Rosenburg, Margaret A. ; Aharonson, Oded ; Phillips, Roger J | American Geophysical Union | 2011Mercury’s coupled 3:2 spin?orbit resonance in conjunction with its relatively high eccentricity of ?0.2 and near?zero obliquity results in both a latitudinal and longitudinal variation in annual average solar insolation and thus equatorial hot a[...]texto impreso
Sánchez Benítez, A. ; García Herrera, Ricardo ; Barriopedro Cepero, David ; Sousa, P. M. ; Trigo, R.M. | American Geophysical Union | 2018-02-28This paper examines the characteristics of the heatwave that affected western and central Europe in June 2017. Using a novel algorithm, we show that its extension, intensity, and persistence were comparable to those of other European mega-heatwa[...]