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Domínguez Castro, F. ; Ribera, P. ; García Herrera, Ricardo ; Vaquero, J. M. ; Barriendos, M. ; Cuadrat, J. M. ; Moreno, J. M. | Copernicus Gesellschaft MBH | 2012Among the different meteorological hazards, droughts are those with the highest socio-economical impact on the Iberian Peninsula. Drought events have been largely studied in the instrumental period, but very little is known about the characteris[...]texto impreso
Delgado, G. ; Redaño, A. ; Lorente, J. ; Nieto, R. ; Gimeno, L. ; Ribera, P. ; Barriopedro Cepero, David ; García Herrera, Ricardo ; Serrano, A. | Springer Wien | 2007-04This paper reports a cloud cover analysis of cut-off low pressure systems (COL) using a pattern recognition method applied to IR and VIS bispectral histograms. 35 COL occurrences were studied over five years (1994-1998). Five cloud types were id[...]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
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
Peña Ortiz, C. ; García Herrera, Ricardo ; Ribera, P. ; Calvo Fernández, Natalia | http://dx.doi.org/10.1196/annals.1446.007 | 2008The quasibiennial oscillation (QBO) dominates the variability of the equatorial stratosphere and also affects the circulation and temperature of the extratropical region. In this paper we review previous work showing that the mid- to high-latitu[...]texto impreso
Barriopedro Cepero, David ; Gimeno, L. ; García Herrera, Ricardo ; Nieto, R. ; Lorente, J. ; Redaño, A. ; Gordillo, A. ; Serrano, A. ; Ribera, P. ; Torre, L. de la | Springer Wien | 2007-04An earlier developed multidecadal database of Northern Hemisphere cut-off low systems (COLs), covering a 41 years period (from 1958 to 1998) is used to study COLs interannual variability in the European sector (25 degrees-47.5 degrees N, 50 degr[...]texto impreso
Tesouro, M. ; Nieto, R. ; De la Torre, L. ; Ribera, P. ; Gallego, D. ; García Herrera, Ricardo ; Hernández, E. | Springer | 2005-01In this study, the imprints of two major atmospheric variability modes - ENSO and NAO - on the annual cycle of temperature over Northern Africa, a region sensitive to both modes, are investigated. Results from adjusting the annual cycle from dai[...]texto impreso
Díaz, J. ; García Herrera, Ricardo ; Ribera, P. ; Alberdi, J.C. ; Hernández, Emiliano ; Pajares, M.S. ; Otero, A. | SPRINGER-VERLAG BERLIN | 1999-09Objective: Evaluation of the association between air pollution and mortality and morbidity is becoming ever more complex owing to changes in innercity air pollution, marked by decreasing values for all main pollutants save those associated with [...]texto impreso
Queralt, S. ; Barriopedro Cepero, David ; Hernández, E. ; Gallego, D. ; Ribera, P. ; Casanova, C. | Elsevier Science INC | 2009-12An analysis of winter intensity and frequency of precipitation is presented, based on 102 daily precipitation stations over Spain and the Balearic Islands for the 1997-2006 decade. Precipitation stations have been merged in the eight different r[...]texto impreso
Gallego, D. ; García Herrera, Ricardo ; Ribera, P. ; Jones, P. D. | Copernicus Gesellschaft MBH | 2005Measurements of wind strength and direction abstracted from European ships' logbooks during the recently finished CLIWOC project have been used to produce the first gridded Sea Level Pressure ( SLP) reconstruction for the 1750 - 1850 period over[...]texto impreso
Domínguez Castro, F. ; García Herrera, Ricardo ; Ribera, P. ; Barriendos, M. | Copernicus Gesellschaft MBH | 2010In this paper, series of drought occurrence and drought extension in the Iberian Peninsula are constructed for the 1600-1750 period from seven rogation series. These rogation ceremony records come from Bilbao, Catalonia, Zamora, Zaragoza, Toledo[...]texto impreso
Ribera, P. ; Gallego, D. ; Gimeno, L. ; Pérez Campos, J. F. ; García Herrera, Ricardo ; Hernández, E. ; Torre, L. de la ; Nieto, R. ; Calvo Fernández, Natalia | Springer | 2004-04Equivalent temperature based in the NCEP/NCAR reanalysis database has been used as a simultaneous measure of temperature and humidity. Its variations during the 1958-1998 added to the effect of the inclusion of satellite data during the late sev[...]texto impreso
Calvo Fernández, Natalia ; Ribera, P. ; Gimeno, L. ; Gallego, D. ; García Herrera, Ricardo ; Hernández, E. ; Torre, L. de la ; Nieto, R. | Springer | 2004-04Two different groups of indices have been defined to analyze the evolution of global temperature between 1958 and 1998. All the indices were evaluated at three different levels (850, 500 and 200 hPa), and averaged indices were calculated using t[...]
