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    Olas de calor en la Regi贸n Norte del Per煤 y su correlaci贸n con eventos Enso (1979 - 2018)

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    Universidad Nacional Agraria La Molina. Facultad de Ciencias. Departamento Acad茅mico de Ingenier铆a Ambiental, F铆sica y Meteorolog铆aEn el presente trabajo se analiz贸 la relaci贸n que existe entre un evento de ola de calor y su aparici贸n durante un evento ENSO para la regi贸n norte del Per煤 (Tumbes, Piura y Lambayeque), en la cual se estudiaron los mecanismos oc茅ano-atmosf茅rico asociados a su formaci贸n, en ese sentido, se emple贸 en primer lugar el c谩lculo de percentiles para determinar los umbrales de temperatura de cada estaci贸n meteorol贸gica e identificar los eventos de olas de calor, en segundo lugar se aplic贸 la metodolog铆a de anomal铆a estandarizada categorizando los eventos extraordinarios ENSO, en tercer lugar se realiz贸 an谩lisis de correlaci贸n de Pearson y Spearman a fin de identificar la relaci贸n entre los diferentes 铆ndices clim谩ticos asociados al ENSO (oce谩nico, atmosf茅rico y multivariado) y el IOC (铆ndice de olas de calor) adaptado de la f贸rmula de anomal铆a estandarizada, asimismo, se plante贸 un modelo conceptual para la formaci贸n de eventos de olas de calor; en ese sentido se calcul贸 el IOC y mostro valores de +0.76 y +1.33 en los eventos ENSO 1997 鈥 1998 y 2015 鈥 2016 respectivamente, asimismo durante los eventos extraordinarios el IOC con los 铆ndices clim谩ticos mostro una alta correlaci贸n positiva mayor de +0.5, a excepci贸n del 铆ndice atmosf茅rico SOI, en adici贸n, la relaci贸n entre IOC con la TSM, nivel de 850 hPa y 500 hPa mostro una alta correlaci贸n positiva mayor de +0.5 en los meses de enero, febrero y marzo. Por otro lado, la formaci贸n de eventos de olas de calor se apreci贸 que cuando existe un ingreso an贸malo de la circulaci贸n de los oestes a la atm贸sfera tropical genera que el APS ingrese a continente y atrapando la humedad proveniente de la alta evaporaci贸n por calentamiento de la TSM donde la energ铆a calor铆fica acumulada se irradia durante la tarde incrementando la temperatura y ocasionando las olas de calor.In the present work, the relationship between a heat wave event and its appearance during an ENSO event for the northern region of Peru (Tumbes, Piura and Lambayeque) was analyzed, in which the ocean-atmospheric mechanisms associated with heat waves were studied. its formation, in this sense, the calculation of percentiles was used firstly to determine the temperature thresholds of each meteorological station and identify the events of heat waves, secondly, the standardized anomaly methodology was applied, categorizing the extraordinary events ENSO , thirdly, a Pearson and Spearman correlation analysis was carried out in order to identify the relationship between the different climatic indices associated with ENSO (oceanic, atmospheric and multivariate) and the IOC (heat wave index) adapted from the anomaly formula standardized, likewise, a conceptual model was proposed for the formation of heat wave events; In this sense, the IOC was calculated and showed values of +0.76 and +1.33 in the ENSO events 1997 - 1998 and 2015 - 2016 respectively, also during the extraordinary events the IOC with the climatic indices showed a high positive correlation greater than +0.5, With the exception of the SOI atmospheric index, in addition, the relationship between IOC and SST, level of 850 hPa and 500 hPa, showed a high positive correlation greater than +0.5 in the months of January, February and March. On the other hand, the formation of heat wave events showed that when there is an anomalous entry of the westerly circulation into the tropical atmosphere, it causes the APS to enter the continent and trap the moisture from the high evaporation due to heating of the atmosphere. SST where the accumulated heat energy is radiated during the afternoon increasing the temperature and causing heat waves
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