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Nieto, R. ; Gimeno, Luis ; Añel, J. A. ; Torre, L. de la ; Gallego, D. ; Barriopedro Cepero, David ; Gallego, M. ; Gordillo, A. ; Redaño, A. ; Delgado, G. | Springer Wien | 2007-04The Iberian Peninsula is one of the regions in the world with higher occurrence of cut-off low systems (COL). The aim of this paper is to analyse the weather events (rainfall and cloudiness layer) associated to COLs in the Iberian Peninsula with[...]texto impreso
Calvo Fernández, Natalia ; Prieto, M. R. ; Gallego, D. ; García Herrera, Ricardo | Springer | 2005-11Records of wind strength taken onboard Spanish and French ships during the 1750-1850 period have been digitized and examined using content analysis techniques to derive the equivalent wind strength in terms of the current Beaufort scale, this co[...]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
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
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 ; Prieto, R. ; Peña Ortiz, C. | Copernicus Gesellschaft MBH | 2008One of the main problems in climate reconstruction from documentary sources is the evaluation of the quality of non instrumental meteorological records in absence of instrumental observations to perform a calibration. In these cases it is mandat[...]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
Küttel, M. ; Xoplaki, E. ; Gallego, D. ; Ñuterbarcher, J. ; García Herrera, Ricardo ; Allan, R. ; Barriendos, M. ; Jones, P.D. ; Wheeler, D. ; Wanner, H. | Springer | 2010-06Local to regional climate anomalies are to a large extent determined by the state of the atmospheric circulation. The knowledge of large-scale sea level pressure (SLP) variations in former times is therefore crucial when addressing past climate [...]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[...]
