Título
Effects of El Niño in Mexico during rainy and dry seasons: an extended treatment
Autor
Jose Luis Bravo-Cabrera
Enrique Azpra-Romero
Víctor Zarraluqui-Such
CARLOS GAY GARCIA
Nivel de Acceso
Acceso Abierto
Identificador alterno
doi: 10.20937/ATM.2017.30.03.03
Referencia de publicación
URL/http://www.revistascca.unam.mx/atm/index.php/atm/article/view/ATM.2017.30.03.03/
Materias
CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA - (CTI) El Niño - ([Atmósfera; Vol 30, No 3 (2017), ISSN:0187-6236]) - ([Atmósfera; Vol 30, No 3 (2017), ISSN:0187-6236]) precipitation - ([Atmósfera; Vol 30, No 3 (2017), ISSN:0187-6236]) - ([Atmósfera; Vol 30, No 3 (2017), ISSN:0187-6236]) Pearson correlation - ([Atmósfera; Vol 30, No 3 (2017), ISSN:0187-6236]) - ([Atmósfera; Vol 30, No 3 (2017), ISSN:0187-6236]) cold season - ([Atmósfera; Vol 30, No 3 (2017), ISSN:0187-6236]) - ([Atmósfera; Vol 30, No 3 (2017), ISSN:0187-6236]) warm season - ([Atmósfera; Vol 30, No 3 (2017), ISSN:0187-6236]) - ([Atmósfera; Vol 30, No 3 (2017), ISSN:0187-6236])
Resumen o descripción
The effect of El Niño-Southern Oscillation (ENSO) on precipitation in Mexico is analyzed. Unlike previous studies, the amount of data used is larger and the Mexican territory is more widely covered. In this paper, daily precipitation from the CLICOM database updated to 2015 was used. The studied period spans from 1961 to 2013 and was divided into two periods: 1961-1990 and 1991-2013. For the same periods two separated seasons were considered: the cold and dry (November-April), and the warm and wet (May-October). Thus, the number of stations that exceed the amount of continuous information criteria for a certain period increases considerably. The Pearson correlation coefficient with a significance of 5% was used in order to test for the existence of a relationship between precipitation and the Multivariate ENSO Index (MEI). The results are presented in maps where regions of precipitation above or below average are observed. During the summer/warm months, the northwestern region of Mexico is clearly identified with a direct relationship between MEI and precipitation, whereas an inverse relationship in the part that lies south of latitude 22º N is seen. In the winter/cold months, there is a general increase in precipitation with increasing MEI. Distributions of normal rainfall for both winter and summer are also shown.
Editor
Universidad Nacional Autónoma de México. Centro de Ciencias de la Atmósfera
Fecha de publicación
30 de junio de 2017
Tipo de publicación
Artículo
Versión de la publicación
Versión publicada
Recurso de información
Formato
application/pdf
Fuente
Atmósfera; Vol 30, No 3 (2017)
ISSN:0187-6236
Idioma
Inglés
Audiencia
Investigadores
Estudiantes
Repositorio Orígen
Repositorio Institucional del Centro de Ciencias de la Atmósfera de la UNAM
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