Rapid deepening of tropical cyclones in the northeastern Tropical Pacific: The relationship with oceanic eddies

Abstract

RESUMENLos datos del archivo de trayectorias mejoradas (best track) del Centro Nacional de Huracanes de Miami explosiva durante el periodo [1993][1994][1995][1996][1997][1998][1999][2000][2001][2002][2003][2004][2005][2006][2007][2008][2009]. Al mismo tiempo, observaciones de altimetría satelital muestran al de datos se utilizan para estudiar el papel de los remolinos oceánicos en la distribución espacial del calor de los resultados demuestra que: 1) la interacción entre CT y remolinos oceánicos anticiclónicos ocurrió en ~ 73% de los CT del periodo analizado; 2) de los CT que alcanzaron la categoría de huracanes, 90% había interaccionado con los remolinos oceánicos anticiclónicos; 3) ~ 18% (3%) de los CT se caracterizaron por profundización rápida (explosiva), 74% de éstos alcanzaron el estado de profundización después de su interacción directa y/o indirecta con remolinos oceánicos anticiclónicos, y de ellos el 86% alcanzó la categoría de huracán mayor. El análisis de las condiciones atmosféricas demuestra que la intrusión de aire seco a lo largo ABSTRACT cyclones (TC) that exhibited rapid and/or explosive deepening during the period 1993-2009. Concurrently, oceanic eddies. These two sources of data are used to study the role of oceanic eddies in the spatial distribution of the oceanic heat content and the rapid and/or explosive deepening of TCs in the northeastern Tropical Pain ~ 73% of the TCs within the analyzed period; (2) 90% of the TCs that reached major hurricane category had experienced an interaction with anticyclonic eddies; (3) ~ 18% (3%) of the TCs were characterized by rapid (explosive) deepening and 74% of these TCs reached the deepening status after direct and/or indirect interaction with anticyclonic eddies; moreover, 86% of them reached a major hurricane category. Analysis of the lower atmosphere as an inhibitor of tropical cyclone deepening.

The response of ocean parameters to tropical cyclones in the Bay of Bengal

“…(d,e) The percentage frequency of TCHP (kJ/cm 2 ) and BLT (m) at the corresponding TC intensification locations shown in (b,c) TCHP increases consistently up to ∼58-70 kJ/cm 2 during the intensification phase from DD to SCS stage and then decreases progressively to ∼65-60 kJ/cm 2 in the latter stages. These results are consistent with the findings reported in Malan et al (2013)) and Oropeza and Raga (2015). The reduced TCHP variations during these stages are mainly due to the presence of strong winds from the SCS stage and higher categories, which results in surface cooling through turbulent vertical mixing processes (Emanuel, 2001;Sengupta et al, 2008;Balaguru et al, 2012;Mawren and Reason, 2017).…”

“…These results are consistent with the findings reported in Malan et al . ()) and Oropeza and Raga (). The reduced TCHP variations during these stages are mainly due to the presence of strong winds from the SCS stage and higher categories, which results in surface cooling through turbulent vertical mixing processes (Emanuel, ; Sengupta et al ., ; Balaguru et al ., ; Mawren and Reason, ).…”

Development of objective forecast guidance on tropical cyclone rapid intensity change

“…In the Atlantic, Shay et al (2000) proposed that a warm core eddy in the Gulf of Mexico played a role in the RI of Hurricane Opal. In the eastern North Pacific (ENP), Oropeza and Raga (2015) conducted research on several TCs and found that, although oceanic eddies were not a sufficient condition for RI occurrence, they still had a certain significance in intensification and RI. In the WNP, Lin et al (2008) studied the upper ocean thermal structure of category 5 typhoons and found that the background climatological upper ocean thermal structure is important to determine how critical the sea surface height anomaly features are.…”

Port of Manzanillo: Climate Risk Management (Final Report)

“…• Changes in Mexican extreme rainfall shows the amount of rainfall in a 24 hour period with an expected return period of 20 years is to increase 118 .…”