On the upper ocean response to tropical cyclones: Satellite microwave observation

Author(s):  
A. K. Monzikova ◽  
V. N. Kudryavtsev ◽  
N. Reul ◽  
B. Chapron
2019 ◽  
Vol 11 (20) ◽  
pp. 2431 ◽  
Author(s):  
Jue Ning ◽  
Qing Xu ◽  
Tao Feng ◽  
Han Zhang ◽  
Tao Wang

The upper ocean thermodynamic and biological responses to two sequential tropical cyclones (TCs) over the Northwestern Pacific Ocean were investigated using multi-satellite datasets, in situ observations and numerical model outputs. During Kalmaegi and Fung-Wong, three distinct cold patches were observed at sea surface. The locations of these cold patches are highly correlated with relatively shallower depth of the 26 °C isotherm and mixed layer depth (MLD) and lower upper ocean heat content. The enhancement of surface chlorophyll a (chl-a) concentration was detected in these three regions as well, mainly due to the TC-induced mixing and upwelling as well as the terrestrial runoff. Moreover, the pre-existing ocean cyclonic eddy (CE) has been found to significantly modulate the magnitude of surface cooling and chl-a increase. With the deepening of the MLD on the right side of TCs, the temperature of the mixed layer decreased and the salinity increased. The sequential TCs had superimposed effects on the upper ocean response. The possible causes of sudden track change in sequential TCs scenario were also explored. Both atmospheric and oceanic conditions play noticeable roles in abrupt northward turning of the subsequent TC Fung-Wong.


2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Han Zhang ◽  
Hailun He ◽  
Wen-Zhou Zhang ◽  
Di Tian

AbstractTropical cyclones (TCs) are strong natural hazards that are important for local and global air–sea interactions. This manuscript briefly reviews the knowledge about the upper ocean responses to TCs, including the current, surface wave, temperature, salinity and biological responses. TCs usually cause upper ocean near-inertial currents, increase strong surface waves, cool the surface ocean, warm subsurface ocean, increase sea surface salinity and decrease subsurface salinity, causing plankton blooms. The upper ocean response to TCs is controlled by TC-induced mixing, advection and surface flux, which usually bias to the right (left) side of the TC track in the Northern (Southern) Hemisphere. The upper ocean response usually recovers in several days to several weeks. The characteristics of the upper ocean response mainly depend on the TC parameters (e.g. TC intensity, translation speed and size) and environmental parameters (e.g. ocean stratification and eddies). In recent decades, our knowledge of the upper ocean response to TCs has improved because of the development of observation methods and numerical models. More processes of the upper ocean response to TCs can be studied by researchers in the future.


2007 ◽  
Vol 25 (2) ◽  
pp. 123-131 ◽  
Author(s):  
Zenghong Liu ◽  
Jianping Xu ◽  
Bokang Zhu ◽  
Chaohui Sun ◽  
Lifeng Zhang

2019 ◽  
Vol 124 (6) ◽  
pp. 3664-3681 ◽  
Author(s):  
A. Doeschate ◽  
G. Sutherland ◽  
H. Bellenger ◽  
S. Landwehr ◽  
L. Esters ◽  
...  

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