RT Journal Article
T1 Relación entre periodos frios y cambios de patrón de macroescala (oscilación del Atlántico Norte) en las inundaciones en el Río Guadiana
T1 Relationship betwen cold periods and changes in macroscale patterns (North Atlantic oscillation) in GuadianaRiver floods
A1 Ortega, J.A.
A1 Garzón Heydt, Guillermina
AB Global changes in climate have been widely documented but the relationships between these changesand floods are not easy to establish. Hydroclimatology offers an important tool in order to improve ourknowledge about the flood producing mechanisms, which can be used to explain historical andpalaeohydrological events. Storm cells and mesoscale systems develop into small floods, mainly at tributarystreams. But a synoptic scale relates better to Guadiana River floods, dominant in winter. At a higher level,macroscale atmospheric configuration can also explain flood generation at the Guadiana River and,particularly, the North Atlantic Oscillation (NAO) that is one of the most important recurrent patterns ofatmospheric circulation. There is no reliable evidence, however relating NAO and historical floods inEurope, especially for central European countries. This situation changes in the Iberian Peninsula, speciallyin the Southwest that shows a good relationship between winter floods and a negative NAO phase.Recent Guadiana River floods (XX century) could be related to these phenomena, but there´s not andindex who covers previous events. Guadiana palaeoflood records compiled using slackwater deposits aredated by 14C radiometric methods and associated, when it is possible to a historical flood event. Resultsshows event clusters during cooling phases and it is likely that they reflect moments of climatic variability
YR 2007
FD 2007
LK http://hdl.handle.net/10272/8375
UL http://hdl.handle.net/10272/8375
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 28 may 2026