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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[...]texto impreso
Motivated by findings that energetically consistent subgrid dissipation schemes can improve eddy-permitting ocean simulations, this work investigates the impact of the subgrid dissipation scheme on low-resolution atmospheric dynamical cores. A k[...]texto impreso
A cessation of the Atlantic meridional overturning circulation (AMOC) significantly reduces northward oceanic heat transport. In response to anomalous freshwater flux, this leads to the classic 'bipolar see-saw' pattern of northern cooling and s[...]texto impreso
Substantial increases in the atmospheric concentration of well-mixed greenhouse gases (notably CO2), such as those projected to occur by the end of the 21st century under large radiative forcing scenarios, have long been known to cause an accele[...]texto impreso
Pinto, Joaquim G. ; Gómara Cardalliaguet, Iñigo ; Masato, Giacomo ; Dacre, Helen F. ; Woollings, Tim ; Caballero, Rodrigo | American Geophysical Union | 2014-12-27Some recent winters in Western Europe have been characterized by the occurrence of multiple extratropical cyclones following a similar path. The occurrence of such cyclone clusters leads to large socio-economic impacts due to damaging winds, sto[...]texto impreso
Herrero Gil, Andrea ; Ruiz Pérez, Javier ; Romeo Briones, Ignacio | American Geophysical Union | 2020-03Amenthes Rupes is the topographic expression of a main fault belonging to a thrust fault system located parallel to the martian dichotomy boundary. A 3D forward model has been applied to the Amenthes thrust fault system, constraining fault geome[...]texto impreso
Bolgiani, Pedro ; Santos Muñoz, Daniel ; Fernández González, Sergio ; Sastre Marugán, Mariano ; Valero Rodríguez, Francisco ; Martín, María Luisa | American Geophysical Union | 2020-07-27Microbursts are meteorological phenomena in the lower troposphere which can produce damaging surface winds and pose a severe risk to aircraft flying close to the ground. As these events usually span less than 4 km and 15 min, the spatiotemporal [...]texto impreso
Maher, Penelope ; Gerber, Edwin P. ; Medeiros, Brian ; Merlis, Timothy M. ; Sherwood, Steven ; Sheshadri, Aditi ; Sobel, Adam H. ; Vallis, Geoffrey K. ; Voigt, Aiko ; Zurita Gotor, Pablo | American Geophysical Union | 2019-06In this review, we highlight the complementary relationship between simple and comprehensive models in addressing key scientific questions to describe Earth's atmospheric circulation. The systematic representation of models in steps, or hierarch[...]texto impreso
As part of the Coupled Model Intercomparison Project, integrations with a common design have been undertaken with eleven different climate models to compare the response of the Atlantic thermohaline circulation ( THC) to time-dependent climate c[...]texto impreso
We develop a topological model of ball lightning which explains its stability by the coupling of an air ball to a magnetic knot, a magnetic field with linked magnetic lines. Assuming that currents flow inside the ball, along short-circuited link[...]texto impreso
Zorita, E. ; González Rouco, J. Fidel ; von Storch, H. ; Montávez,, J. P. ; Valero Rodríguez, Francisco | American Geophysical Union | 2005-04-27The spatial patterns of surface air-temperature variations in the period 1000 to 2100, simulated with the ECHO-G atmosphere-ocean coupled model, are analyzed. The model was driven by solar, volcanic and greenhouse gas forcing. The leading mode o[...]texto impreso
Beal, S.A. ; Kelly, M.A. ; Stroup, J.S. ; Jackson, B.P. ; Lowell, T.V. ; Tapia, P.M. | American Geophysical Union | 2020-06-10T18:11:34ZMercury (Hg) is a toxic metal that is transported globally through the atmosphere. Emissions of Hg from mineral reservoirs and recycling between soil/biomass, oceans, and the atmosphere are fundamental to the global Hg cycle, yet past emissions [...]texto impreso
Herrero-Barbero, Paula ; Álvarez Gómez, José Antonio ; Martínez Díaz, José J. ; Klimowitz, Juan | American Geophysical Union | 2020-05The Alhama de Murcia Fault is one of the main active structures of the Eastern Betic Shear Zone (SE Spain), characterized by the presence, along its trace, of Neogene basins developed under Early to Late Miocene extensional tectonics. A dominant[...]texto impreso
Ábalos Álvarez, Marta ; Polvani, Lorenzo ; Calvo Fernández, Natalia ; Kinnison, Douglas ; Ploeger, Felix ; Randel, William ; Solomon, Susan | American Geophysical Union | 2019-03-16It has recently been recognized that, in addition to greenhouse gases, anthropogenic emissions of ozone-depleting substances (ODS) can induce long-term trends in the Brewer-Dobson circulation (BDC). Several studies have shown that a substantial [...]texto impreso
Martín Banda, Raquel ; García Mayordomo, Julián ; Insua Arévalo, Juan Miguel ; Salazar, Ángel E. ; Rodríguez-Escudero, Emilio ; Álvarez-Gómez, Jose A. ; Medialdea, Alicia ; Herrero, María J. | American Geophysical Union | 2016-01The Carrascoy Fault (CAF) is one of the main active faults that form part of the Eastern Betic Shear Zone, a 450 km fault system that accommodates most of the convergence between the Eurasian (Iberia) and Nubian plates in the Betic Cordillera, s[...]texto impreso
Gallego, David ; García Herrera, Ricardo ; Calvo Fernández, Natalia ; Ribera, Pedro | American Geophysical Union | 2007-06-23A new documentary source of data for wind, atmospheric pressure and air temperature for the city of Cadiz (southern Spain) has been abstracted, analyzed and compared with present-day data. Wind records cover the period 1806-1852 with three obser[...]texto impreso
García Herrera, Ricardo ; Gimeno, Luis ; Ribera, Pedro ; Hernández Martín, Emiliano | American Geophysical Union | 2005-02-04Spanish historical documents from the Archivo General de Indias (General Archive of the Indies) have been used to identify Caribbean hurricanes and storms from the sixteenth to the nineteenth centuries. These sources provide previously unrecorde[...]texto impreso
Calvo Fernández, Natalia ; Giorgetta, Marco A. ; García Herrera, Ricardo ; Manzini, Elisa | American Geophysical Union | 2009-07-14The influence of the quasi-biennial oscillation (QBO) on the Northern Hemisphere (NH) polar vortex response to warm El Nino-Southern Oscillation (ENSO) events and the impact of the warm ENSO events on the QBO signal in the NH polar stratosphere [...]texto impreso
Calvo Fernández, Natalia ; Giorgetta, Marco A. ; García Herrera, Ricardo ; Manzini, Elisa | American Geophysical Union | 2009-07-14The influence of the quasi-biennial oscillation (QBO) on the Northern Hemisphere (NH) polar vortex response to warm El Nino-Southern Oscillation (ENSO) events and the impact of the warm ENSO events on the QBO signal in the NH polar stratosphere [...]texto impreso
Stevens, M. Bruce ; González Rouco, J. Fidel ; Beltrami, Hugo | American Geophysical Union | 2008-02-05General circulation models (GCMs) are currently able to provide physically consistent simulations of millennial climate variability in which estimations of external forcing factors are incorporated as boundary conditions. Climate reconstruction [...]texto impreso
The interseasonal relationship between Northern Hemisphere (NH) snow cover and regional blocking patterns is explored for a 31-year data set. It is found that snow cover exerts an important influence on regional atmospheric blocking, which, in t[...]texto impreso
García Herrera, Ricardo ; Ribera, Pedro ; Hernández Martín, Emiliano ; Gimeno, Luis | American Geophysical Union | 2007-03-22In recent years, the population and the value of properties in areas prone to tropical cyclone (TC) have increased dramatically. This has caused more attention to be placed on the characterization of TC climatologies and the identification of th[...]texto impreso
Kuhlbrodt, T. ; Griesel, A. ; Montoya Redondo, María Luisa ; Levermann, A. ; Hofmann, M. ; Rahmstorf, S. | American Geophysical Union | 2007-04-24Because of its relevance for the global climate the Atlantic meridional overturning circulation (AMOC) has been a major research focus for many years. Yet the question of which physical mechanisms ultimately drive the AMOC, in the sense of provi[...]texto impreso
Charlton-Perez, Andrew J. ; Baldwin, Mark P. ; Birner, Thomas ; Black, Robert X. ; Butler, Amy H. ; Calvo Fernández, Natalia ; Davis, Nicholas A. ; Gerber, Edwin P. ; Gillett, Nathan ; Hardiman, Steven ; Kim, Junsu ; Krüger, Kirstin ; Lee, Yun-Young ; Manzini, Elisa ; McDaniel, Brent A. ; Polvani, Lorenzo ; Reichler, Thomas ; Shaw, Tiffany A. ; Sigmond, Michael ; Son, Seok-Woo ; Toohey, Matthew ; Wilcox, Laura ; Yoden, Shigeo ; Christiansen, Bo ; Lott, François ; Shindell, Drew ; Yukimoto, Seiji ; Watanabe, Shingo | American Geophysical Union | 2013-03-27We describe the main differences in simulations of stratospheric climate and variability by models within the fifth Coupled Model Intercomparison Project (CMIP5) that have a model top above the stratopause and relatively fine stratospheric verti[...]texto impreso
Blanco-Montenegro, I. ; Montesinos, F. G. ; Garcia, Alicia ; Vieira, Ricardo ; Villalain, J.J. | American Geophysical Union | 2005The Bouguer and aeromagnetic anomaly maps of Lanzarote show a gravity high and a dipolar magnetic anomaly over the central part of the island, indicating one isolated source. Assuming that the structure responsible for both anomalies is the same[...]texto impreso
Rodríguez Bilbao, I. ; Radicella, S.M. ; Rodríguez Caderot, Gracia ; Herraiz, M. | American Geophysical Union | 2015Intense disturbances in the ionosphere may produce perturbations in Global Navigation Satellite Systems (GNSS) radio signals that in the most severe cases produce receiver tracking problems, which in turn impact on GNSS positioning accuracy. In [...]texto impreso
García Herrera, Ricardo ; Calvo Fernández, Natalia ; García, R. R. ; Giorgetta, M. A. | American Geophysical Union | 2006-03-16The vertical propagation of the El Nino-Southern Oscillation (ENSO) temperature signal has been analyzed in two general circulation models, the Whole Atmosphere Community Climate Model and the Middle Atmosphere European Center - Hamburg Model, a[...]texto impreso
MacDougall, Andrew H. ; González Rouco, J. Fidel ; Stevens, M. Bruce ; Beltrami, Hugo | American Geophysical Union | 2008-07-04Shallow bottom boundary conditions (BBCs) in the soil components of general circulation models (GCMs) impose artificial limits on subsurface heat storage. To assess this problem we estimate the subsurface heat content from two future climate sim[...]texto impreso
Calvo Fernández, Natalia ; García, R. R. ; Marsh, D. R. ; Mills, M. J. ; Kinnison, D. E. ; Young, P. J. | American Geophysical Union | 2012-08-28Over the last three decades, ozone depletion over Antarctica has affected temperature and winds in the lower stratosphere, and even in the troposphere and at the surface. The second Chemistry Climate Model Validation activity (CCMVal2) concluded[...]texto impreso
Flow in a stably stratified environment is characterized by anisotropic and intermittent turbulence and wavelike motions of varying amplitudes and periods. Understanding turbulence intermittency and wave-turbulence interactions in a stably strat[...]texto impreso
Calvo Fernández, Natalia ; García, R. R. ; Kinnison, D. E. | American Geophysical Union | 2017-04-16The latest version of the Whole Atmosphere Community Climate Model (WACCM), which includes a new chemistry scheme and an updated parameterization of orographic gravity waves, produces temperature trends in the Antarctic lower stratosphere in exc[...]texto impreso
Many studies address the Interdecadal Pacific Oscillation (IPO) as a modulator of climate in several regions all over the globe. However, very few suggest that it has an impact on Sahel rainfall low-frequency variability. This work shows the rel[...]texto impreso
The Northern Hemisphere (NH) polar stratospheric response to Central Pacific El Niño (CP-El Niño) events remains unclear. Contradictory results have been reported depending on the definition and events considered. We show that this is due to the[...]texto impreso
Calvo Fernández, Natalia ; Giorgetta, M. A. ; Peña Ortiz, C. | American Geophysical Union | 2007-05-30The polar vortex in the Northern Hemisphere exhibits high intraseasonal and interannual variability which, to some degree, may be controlled by the quasi-biennial oscillation (QBO) in the tropical stratosphere. Here we analyze the QBO signal in [...]texto impreso
Fernández, J. ; Montávez, J. P. ; Sáenz, J. ; González Rouco, J. Fidel ; Zorita, E. | American Geophysical Union | 2007-02-16We present an analysis of the sensitivity to different physical parameterizations of a high-resolution simulation of the MM5 mesoscale model over the Iberian Peninsula. Several (16) 5-year runs of the MM5 model with varying parameterizations of [...]texto impreso
González Rouco, J. Fidel ; Beltrami, Hugo ; Zorita, E. ; von Storch, H. | American Geophysical Union | 2006-01-10A heat-conduction forward model driven by ground surface temperature from three 1000-year climate simulations with the state-of-the-art ECHO-g model has been used to simulate underground temperature perturbation profiles. An inversion approach h[...]texto impreso
The cold climate anomaly about 8200 years ago is investigated with CLIMBER-2, a coupled atmosphere-ocean-biosphere model of intermediate complexity. This climate model simulates a cooling of about 3.6 K over the North Atlantic induced by a meltw[...]texto impreso
Barriopedro Cepero, David ; García Herrera, Ricardo ; Huth, Radan | American Geophysical Union | 2008-07-23The blocking response to the 11-year solar cycle is investigated for 44 winters (1955-1999) and stratified according to the level of solar activity and the phase of the Quasi-Biennial Oscillation (QBO). Several blocking features are modulated by[...]texto impreso
Beltrami, Hugo ; Bourlon, Evelise ; Kellman, Lisa ; González Rouco, J. Fidel | American Geophysical Union | 2006-03-30Variations in the Earth's surface energy balance are recorded in the subsurface as perturbations of the steady state thermal field. Here we invert 558 temperature-depth profiles in the Northern Hemisphere (NH), in order to estimate the energy ba[...]texto impreso
Smerdon, J. E. ; Kaplan, A. ; Zorita, E. ; González Rouco, J. Fidel ; Evans, M. N. | American Geophysical Union | 2011-06-15The spatial skill of four climate field reconstruction (CFR) methods is investigated using pseudoproxy experiments (PPEs) based on two millennial-length general circulation model simulations. Results indicate that presently available global and [...]texto impreso
Beltrami, Hugo ; González Rouco, J. Fidel ; Stevens, M. Bruce | American Geophysical Union | 2006-05-06General Circulation Models (GCMs) used to distinguish anthropogenic forcing of the Earth's past climate from its natural variability need to be validated by observations. The GCM ECHO-g was used to produce three millennial simulations of the Ear[...]texto impreso
Quitián Hernández, L. ; González Alemán, Juan Jesús ; Santos Muñoz, D. ; Fernández González, S. ; Valero Rodríguez, Francisco ; Martín, M.L. | American Geophysical Union | 2020-04-27Subtropical cyclones (STCs) are characterized by a thermal hybrid structure with tropical and extratropical features. STCs are considered a numerical modeling challenge because of their rapid intensification. A fundamental part of their strength[...]texto impreso
Using a coupled model of intermediate complexity the sensitivity of the last glacial maximum (LGM) Atlantic meridional overturning circulation (AMOC) to the strength of surface wind-stress is investigated. A threshold is found below which North [...]texto impreso
Montoya Redondo, María Luisa ; Crowley, Thomas J. ; von Storch, Hans | American Geophysical Union | 1998-04The last interglacial (Eemian, 125,000 years ago) has generally been considered the warmest time period in the last 200,000 years and thus sometimes been used as a reference for greenhouse projections. Herein we report results from a coupled oce[...]texto impreso
Anguita, Francisco ; Farelo, Agustín-Felipe ; López, Valle ; Mas, Cristina ; Muñoz Espadas, María Jesús ; Márquez González, Álvaro ; Ruiz Pérez, Javier | American Geophysical Union | 2001-04-25A photogeoIogical reconnaissance of Viking mosaics and images ofthe Tharsis dome has been carried out. Fifteen new areas of transcurrent faulting have been located which, together with other structures previously detected, support a model in whi[...]texto impreso
Chiodo, G. ; Calvo Fernández, Natalia ; Marsh, D. R. ; García Herrera, Ricardo | American Geophysical Union | 2012-03-29The atmospheric response to the 11 year solar cycle (SC) and its combination with the quasi-biennal oscillation (QBO) are analyzed in four simulations of the Whole Atmosphere Community Climate Model version 3.5 (WACCM3.5), which were performed w[...]texto impreso
The combined effects of El Niño-Southern Oscillation (ENSO) and the 11 year solar cycle on the Northern Hemisphere polar stratosphere have been analyzed in the Whole Atmosphere Community Climate Model version 3 in the absence of the quasi-bienni[...]texto impreso
Palmeiro Nuñez, Froila María ; Iza San Juan, Maddalen ; Barriopedro Cepero, David ; Calvo Fernández, Natalia ; García Herrera, Ricardo | American Geophysical Union | 2017-03-28This paper examines the outstanding characteristics of the strong 2015-2016 El Nino (EN) winter and its impact over the European region through the stratosphere. Despite being classified as a strong eastern Pacific (EP) EN event, our analysis re[...]texto impreso
El Niño-Southern Oscillation (ENSO) is known to be the largest source of interannual variability in the tropical troposphere. However, the variability in the tropical Pacific since 1979 seems to be associated not only with "canonical" ENSO event[...]texto impreso
Barriopedro Cepero, David ; García Herrera, Ricardo ; Hernández Martín, Emiliano | American Geophysical Union | 2006-07-27This paper examines the role of North Hemisphere snow cover in the linkage between the winter North Atlantic Oscillation (NAO) and the summer Northern Annular Mode (NAM). This transition is partially supported by the persistence of the NAO-induc[...]texto impreso
Jérez, S. ; Montávez, J. P. ; Gómez Navarro, J. J. ; Jiménez, P. A. ; Jiménez Guerrero, P. ; Lorente, R. ; González Rouco, J. Fidel | American Geophysical Union | 2012-01-12The importance of land-surface processes within Regional Climate Models for accurately reproducing the present-day climate is well known. However, their role when projecting future climate is still poorly reported. Hence, this work assesses the [...]texto impreso
García Herrera, Ricardo ; Calvo Fernández, Natalia ; Gallego, David ; Hernández Martín, Emiliano ; Gimeno, Luis ; Ribera, Pedro ; Peña Ortiz, Cristina | American Geophysical Union | 2003-07-08The spatiotemporal evolution of the zonal wind in the stratosphere is analyzed based on the use of the NCEP reanalysis (1958-2001). MultiTaper Method-Singular Value Decomposition (MTM-SVD), a frequency-domain analysis method, is applied to isola[...]texto impreso
Fernández González, S. ; Martín, M. L. ; Merino, A. ; Sánchez, J. L. ; Valero Rodríguez, Francisco | American Geophysical Union | 2017-04-16During recent decades, the use of probabilistic forecasting methods has increased markedly. However, these predictions still need improvement in uncertainty quantification and predictability analysis. For this reason, the main aim of this paper [...]texto impreso
Sainz-Maza Aparicio, S. ; Arnoso Sampedro, J. ; Montesinos, F. G. ; Marti Molist, J. | American Geophysical Union | 2014-06Gravity changes occurring during the initial stage of the 2011-2012 El Hierro submarine eruption are interpreted in terms of the preeruptive signatures during the episode of unrest. Continuous gravity measurements were made at two sites on the i[...]