Barometric connections between the north of the caribbean sea and the southwest of the iberian peninsula and the nao index

• Main Authors: Vélez-Flores, Amílcar, Martín-Vide, Javier, Méndez Tejeda, Rafael, Royé, Dominic
• Format: Article in Journal/Newspaper
• Language: English
• Published: Institute of Caribbean Studies, College of Social Sciences at the University of Puerto Rico, Río Piedras Campus 2023
• Subjects: NASH; Caribbean Sea; Iberian Peninsula; atmospheric pressure; teleconnection; NAO; Inglés; Nash; San Fernando; San Juan; North Atlantic; North Atlantic oscillation
• Online Access: https://revistas.upr.edu/index.php/csj/article/view/21023

This study analyzes possible climatic connections that establish the subtropical anticyclone of the North Atlantic (NASH) between two regions of the Atlantic Ocean. The fundamental importance of NASH is widely known by the scientific community. The condition of its large center of action in the regions around the Atlantic Ocean is the key part in the general atmospheric circulation between tropics, subtropical limits and the mid-latitudes. We have used monthly measures of the atmospheric pressure of San Fernando-Cádiz (Spain), as a reference point of the Southwest area of the Iberian Peninsula, and of San Juan (Puerto Rico) and Guantánamo (Cuba), as reference points for the north of the Caribbean Sea. The analysis also includes the monthly values of the North Atlantic Oscillation (NAO) index. The climatic registers that have been used correspond to a sequence of fifty-four years between 1956 and 2009. The results of the correlations show four months of the year (February, June, August and October) with significant positive statistical values between the atmospheric pressures of San Juan-Guantánamo and San Fernando-Cádiz. They also show three months equally important between the pressures of San Juan-Guantánamo and the NAO index (January, February and March). Este estudio analiza las posibles conexiones climáticas que establec el anticiclón subtropical del Atlántico Norte (NASH, por sus siglas en inglés) entre las regiones del suroeste de la península ibérica y el norte del mar Caribe. Es ampliamente conocido por la comunidad científica el papel fundamental que juega el NASH, por su condición de gran centro de acción, en las regiones que rodean el océano Atlántico, siendo éste una pieza clave en la circulación atmosférica general entre el trópico, el ámbito subtropical y las latitudes medias. Para este análisis se han utilizado las medias mensuales de presión atmosférica de San Fernando-Cádiz (España), como punto representativo del suroeste de la península ibérica, y de San Juan (Puerto Rico) y Guantánamo ...