Some aspects of accuracy of radar/satellite fixes of tropical cyclone over Bay of Bengal

P. RAJESH RAO; R. C. SAXENA; S. K. BANERJEE

doi:10.54302/mausam.v43i4.3505

Some aspects of accuracy of radar/satellite fixes of tropical cyclone over Bay of Bengal

MAUSAM ◽

10.54302/mausam.v43i4.3505 ◽

2021 ◽

Vol 43 (4) ◽

pp. 379-384

Author(s):

P. RAJESH RAO ◽

R. C. SAXENA ◽

S. K. BANERJEE

Keyword(s):

Tropical Cyclone ◽

Bay Of Bengal ◽

Radar Satellite

Consequent to installation of 10 cyclone detection radars and availability of INSAT observations availability of fixes* of cyclones by two or more radars and satellite has become a common feature during tracking of cyclones. Generally these fixes differ from each other to some extent. The paper presents a study of tracks of four cyclones in Bay of Bengal as determined by coastal radars and satellite. It is seen that satellite fix is generally closer to coast as compared to radar fix. Amongst radar fixes, the fix of radar closest to the storm may be considered as best fix of the system.

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Tropical cyclone simulations over Bay of Bengal with ARW model: Sensitivity to cloud microphysics schemes

Atmospheric Research ◽

10.1016/j.atmosres.2019.104651 ◽

2019 ◽

Vol 230 ◽

pp. 104651 ◽

Cited By ~ 4

Author(s):

P. Reshmi Mohan ◽

C. Venkata Srinivas ◽

V. Yesubabu ◽

R. Baskaran ◽

B. Venkatraman

Keyword(s):

Tropical Cyclone ◽

Bay Of Bengal ◽

Cloud Microphysics ◽

Model Sensitivity ◽

Arw Model

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Markov Chain Monte Carlo simulation and regression approach guided by El Niño–Southern Oscillation to model the tropical cyclone occurrence over the Bay of Bengal

Climate Dynamics ◽

10.1007/s00382-020-05610-x ◽

2021 ◽

Author(s):

Md Wahiduzzaman ◽

Alea Yeasmin ◽

Jing-Jia Luo ◽

Dewan Abdul Quadir ◽

Andre Van Amstel ◽

...

Keyword(s):

Monte Carlo Simulation ◽

Monte Carlo ◽

Markov Chain ◽

Markov Chain Monte Carlo ◽

Tropical Cyclone ◽

Bay Of Bengal ◽

El Nino ◽

Southern Oscillation ◽

Regression Approach ◽

Simulation And Regression

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Effects of ocean eddies on the tropical storm Roanu intensity in the Bay of Bengal

PLoS ONE ◽

10.1371/journal.pone.0247521 ◽

2021 ◽

Vol 16 (3) ◽

pp. e0247521

Author(s):

Yujun Liu ◽

Haibin LÜ ◽

Honghua Zhang ◽

Yusheng Cui ◽

Xueting Xing

Keyword(s):

Tropical Cyclone ◽

Bay Of Bengal ◽

Tropical Storm ◽

The West ◽

Initial Development ◽

Ocean Eddies ◽

Tropical Cyclone Heat Potential ◽

Warm Eddy ◽

Heat Potential ◽

Cold Eddy

A tropical storm (TS) Roanu occurred in northern Sri Lanka in 2016, which transported northwards along the west coast of the Bay of Bengal (BoB). During the development of the TS, ocean eddies on its track had an important effect on the intensity of Roanu. The dynamic mechanism was investigated with multisource reanalysis and Argo float data in this study. The results show that ocean eddies were the main reason why Roanu first enhanced, weakened, and then enhanced again. Warm eddy W1 supports the initial development of the TS, cold eddy C1 weakens Roanu, and warm eddy W2 continues to support Roanu. On May 19, 2016, the maximum average latent heat flux over W1 was 260.85 w/m2, while that of C1 was only 200.71 w/m2. After the passage of Roanu, the tropical cyclone heat potential (TCHP) of eddies significantly decreased. The TCHP of W1, W2, C1 and C2 decreased by 20.95 kJ/cm2, 11.07 kJ/cm2, 29.82 kJ/cm2, 9.31 kJ/cm2, respectively. The mixed layer of warm eddies deepened much more than that of cold eddies, supporting Roanu development. In addition, changes in potential vorticity (PV) values caused by the disturbance of eddies may also reflect changes in the TS intensity. This study offers new insights on the influence of ocean eddies in regulating the development of tropical cyclone (TC) in the BoB.

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