dc.contributor.author | Garreaud, René D. | |
dc.contributor.author | Nicora, M. Gabriela | |
dc.contributor.author | Bürgesser, Rodrigo E. | |
dc.contributor.author | Ávila, Eldo E. | |
dc.coverage.spatial | Región Patagónica | es |
dc.date.accessioned | 2021-09-22T14:33:23Z | |
dc.date.available | 2021-09-22T14:33:23Z | |
dc.date.issued | 2014 | |
dc.identifier.citation | Garreaud, R. D., M. Gabriela Nicora, R. E., Bürgesser, and E. E. Ávila (2014), Lightning in Western Patagonia, J. Geophys. Res. Atmos., 119,
doi:10.1002/2013JD021160. | |
dc.identifier.uri | http://hdl.handle.net/11086/20415 | |
dc.identifier.uri | https://doi.org/10.1002/2013JD021160 | |
dc.description.abstract | On the basis of 8 years (2005-2012) of stroke data from the World Wide Lightning Location Network we describe the spatial distribution and temporal variability of lightning activity over Western Patagonia. This region extends from ~40°S to 55°S along the west coast of South America, is limited to the east by the austral Andes, and features a hyper-humid, maritime climate. Stroke density exhibits a sharp maximum along the coast of southern Chile. Although precipitation there is largely produced by cold nimbostratus, days with more than one stroke occur up to a third of the time somewhere along the coastal strip. Disperse strokes are also observed off southern Chile. In contrast, strokes are virtually nonexistent over the austral Andes -where precipitation is maximum- and farther east over the dry lowlands of Argentina. Atmospheric reanalysis and satellite imagery are used to characterize the synoptic environment of lightning-producing storms, exemplified by a case study and generalized by a compositing analysis. Lightning activity tends to occur when Western Patagonia is immersed in a pool of cold air behind a front that has reached the coast at ~40°S. Under these circumstances, midlevel cooling occurs before and is more prominent than near-surface cooling, leading to a weakly unstable postfrontal condition. Forced uplift of the strong westerlies impinging on the coastal mountains can trigger convection and produces significant lightning activity in this zone. Farther offshore, large-scale ascent near the cyclone's center may lift near-surface air parcels, fostering shallow convection and dispersing lightning activity. | es |
dc.format.medium | Impreso | |
dc.language.iso | eng | es |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Lightning | en |
dc.subject | Climate | en |
dc.title | Lightning in Western Patagonia | en |
dc.type | article | es |
dc.description.version | publishedVersion | es |
dc.description.fil | Fil: Bürgesser, Rodrigo E. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina. | es |
dc.description.fil | Fil: Ávila, Eldo E. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina. | es |
dc.description.fil | Fil: Bürgesser, Rodrigo E. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. | es |
dc.description.fil | Fil: Ávila, Eldo E. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. | es |
dc.description.fil | Fil: Garreaud, René D. Universidad de Chile. Department of Geophysics and Center for Climate and Resilience Research; Chile | es |
dc.description.fil | Fil: Nicora, M. Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Departamento de Investigaciones en Láseres y sus aplicaciones; Argentina. | es |
dc.description.fil | Fil: Nicora, M. Gabriela. Ministerio de Defensa. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Departamento de Investigaciones en Láseres y sus aplicaciones; Argentina. | es |
dc.journal.country | Estados Unidos | es |
dc.journal.editorial | American Geophysical Union - Wiley | es |
dc.journal.referato | Con referato | |
dc.journal.title | Journal of Geophysical Research: Atmospheres | es |
dc.journal.volume | 119 | es |
dc.description.field | Meteorología y Ciencias Atmosféricas | |