Please use this identifier to cite or link to this item: http://dspace.ucuenca.edu.ec/handle/123456789/31046
Title: Climatology and teleconnections of mesoscale convective systems in an andean basin in southern Ecuador: The case of the Paute basin
Other Titles: 
Authors: Samaniego Alvarado, Esteban Patricio
Campozano Parra, Lenin Vladimir
Celleri Alvear, Rolando Enrique
Albuja Silva, Edgar Cristobal
Keywords: CLIMATOLOGY
MESOSCALE
CONVECTIVE
Issue Date: 2018
metadata.dc.type: ARTÍCULO
Abstract: 
Mesoscale convective systems (MCSs) climatology, the thermodynamic and dynamical variables, and teleconnections influencing MCSs development are assessed for the Paute basin (PB) in the Ecuadorian Andes from 2000 to 2009. The seasonality of MCSs occurrence shows a bimodal pattern, with higher occurrence during March-April (MA) and October-November (ON), analogous to the regional rainfall seasonality. The diurnal cycle of MCSs shows a clear nocturnal occurrence, especially during the MA and ON periods. Interestingly, despite the higher occurrence of MCSs during the rainy seasons, the monthly size relative frequency remains fairly constant throughout the year. On the east of the PB, the persistent high convective available potential and low convective inhibition values from midday to nighttime are likely related to the nocturnal development of the MCSs. A significant positive correlation between the MCSs occurrence to the west of the PB and the Trans-Niño index was found, suggesting that ENSO is an important source of interannual variability of MCSs frequency with increasing development of MCSs during warm ENSO phases. On the east of the PB, the variability of MCSs is positively correlated to the tropical Atlantic sea surface temperature anomalies south of the equator, due to the variability of the Atlantic subtropical anticyclone, showing main departures from this relation when anomalous conditions occur in the tropical Pacific due to ENSO.
URI: http://dspace.ucuenca.edu.ec/handle/123456789/31046
https://www.hindawi.com/journals/amete/2018/4259191/abs/
ISSN: 1687-9317
Appears in Collections:Artículos

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