2021
DOI: 10.1029/2020gl091185
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Air‐Sea Interactions in the Cold Wakes of Tropical Cyclones

Abstract: The climate system is composed of different compartments which communicate and exchange properties at their boundaries, such as at the air-sea interface, modifying momentum, gas concentrations, heat, and moisture content. The air-sea fluxes depend on the thermal, chemical, and dynamical disequilibrium between the upper ocean and the lower atmosphere. Despite being crucial for both weather and climate phenomena, their observations are still challenging, especially at high-spatiotemporal resolution (Cronin et al… Show more

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Cited by 41 publications
(35 citation statements)
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“…Overall, strong TCs move a little slower than weak TCs at genesis (average speed 9.34 kt versus 10.35 kt), and the difference is statistically significant at the 95% confidence level. This is contrary to a previous study indicating that the enhancement of TC intensity is restrained by cold water upward from the deep ocean due to the pumping effect when the storm remains in a certain location for a long time [77]. On the other hand, TCs are usually formed in the tropics with a warm underlying surface, so interaction with warmer seawater for a longer time around genesis provides a better chance for the storm to gain heat flux from the ocean and develop quickly.…”
Section: Translation Speedcontrasting
confidence: 99%
“…Overall, strong TCs move a little slower than weak TCs at genesis (average speed 9.34 kt versus 10.35 kt), and the difference is statistically significant at the 95% confidence level. This is contrary to a previous study indicating that the enhancement of TC intensity is restrained by cold water upward from the deep ocean due to the pumping effect when the storm remains in a certain location for a long time [77]. On the other hand, TCs are usually formed in the tropics with a warm underlying surface, so interaction with warmer seawater for a longer time around genesis provides a better chance for the storm to gain heat flux from the ocean and develop quickly.…”
Section: Translation Speedcontrasting
confidence: 99%
“…We find generally decreased TCP in the AOGCMs, in the absence of large-scale SST bias and with similar local pre-TC SSTs. This is in agreement with previous studies on TC-related precipitation (Hasegawa & Emori, 2007;Ma et al, 2020) and can be explained by the thermal feedback of cold wakes, primarily the pressure adjustment mechanism (Pasquero et al, 2021;Renault et al, 2019). Our findings suggest that cold wakes may play an important role in decreasing TCP, independent of the contributions from large-scale SST biases.…”
Section: The Role Of Large-scale Sst Biases and Tc-ocean Feedbacks In Modulating Tc Precipitationsupporting
confidence: 93%
“…Indeed, the energy required for genesis, sustenance and intensification of a TC primarily originates from the ocean through sea surface temperature (SST) and air-sea fluxes of heat and moisture e.g., [5]. These interactions have also recently been shown to play a key role in the cold wake properties at the sea surface, which can not only impact the intensity of the cyclone itself, but also influence the structure of the ocean-atmosphere coupled system for up to several weeks [6].…”
Section: Introductionmentioning
confidence: 99%