A review of ocean-atmosphere interactions during tropical cyclones in the north Indian Ocean

Singh, Vineet Kumar; Roxy, Mathew Koll

doi:10.1016/j.earscirev.2022.103967

Cited by 72 publications

(34 citation statements)

References 273 publications

(223 reference statements)

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“…The role of ocean heat content is not only limited to the genesis, but also to intensity changes of TCs (Lin et al ., 2005; Maneesha et al ., 2015). Singh and Koll Roxy (2020) showed that the combination of high upper‐ocean heat content with persisting large positive SST anomalies favoured the cyclogenesis of Ockhi in the presence of Madden–Julian Oscillation (MJO) phase 4. The mixed‐layer depth near the track is as high as 80 m as shown in Figure 4a.…”

Section: Resultsmentioning

confidence: 99%

“…The NIO basin being warm (SST > 26.5 • C) and closed, has high potential to generate TCs that eventually cause massive causalities to the very dense coastal population of this region. The oceanic features of NIO impact the evolution of TC intensities substantially (Singh and Koll Roxy, 2020) which necessitates a high-resolution mesoscale coupled modelling system to predict the track and intensity of TCs.…”

Section: Discussionmentioning

confidence: 99%

“…Although a great advancement has been accomplished in predicting the track and intensity of TCs, accurate prediction of TC intensity is still a challenge to the scientific community (Mohanty et al ., 2019), because of an incomplete understanding of the complex dynamic interactions involved at the interface between atmosphere and ocean within a TC environment (Singh and Koll Roxy, 2020). Different factors including the pace of the movement of the TCs result in a change of internal dynamics of the wakes produced due to high wind stress (Zhang et al ., 2020).…”

Section: Introductionmentioning

confidence: 99%

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Influence of the ocean on tropical cyclone intensity using a high resolution coupled atmosphere–ocean model: A case study of very severe cyclonic storm Ockhi over the North Indian Ocean

Mohanty

Nadimpalli

Joseph

et al. 2022

Quart J Royal Meteoro Soc

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A very severe cyclonic storm (VSCS), Ockhi was conceived in the Bay of Bengal and moved over the Arabian Sea undergoing rapid intensification (RI) in the early stages of its life cycle. Ockhi is simulated using the high‐resolution coupled Hybrid Coordinate Ocean Model and the Hurricane Weather Research Forecast model. The study suggests that sea surface temperature warmer than the seasonal climatological mean with the availability of a large tropical cyclone heat potential (TCHP) has acted as a potential cause for RI when the TC moved over that region. We have conducted experiments with (CP) and without (UCP) ocean coupling. The predicted tracks of UCP and CP experiments agree well with the India Meteorological Department's best track data. However, CP showed a significant improvement in intensity prediction with 61 and 19% for mean sea level pressure and maximum sustained surface wind at 10 m respectively in comparison to UCP. The presence of thermal and haline stratification in the subsurface affects surface cooling. The subsurface turbulent heat flux calculated for the high‐TCHP region under the TC suggests that the upward transport of heat, which increases the enthalpy flux, becomes necessary to bring about RI. The primary circulation, secondary circulation, inflow, thermal structure, moisture distribution and mass flux within the TC environment during the 24‐hr RI period are analyzed to investigate the evolution of TC characteristics for both UCP and CP experiments. The analyses suggest that the UCP experiments show higher values of intensity as compared to CP experiments. Further, a more organized evolution of updrafts is present in the CP simulation, maybe due to the formation of a stable boundary layer. The study shows the significant influence of coupling on surface enthalpy controlling boundary layer characteristics and thus ultimately producing a more organized TC.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of the ocean on tropical cyclone intensity using a high resolution coupled atmosphere–ocean model: A case study of very severe cyclonic storm Ockhi over the North Indian Ocean

Mohanty

Nadimpalli

Joseph

et al. 2022

Quart J Royal Meteoro Soc

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“…As mentioned earlier, the low‐pressure systems, such as depressions and tropical cyclones, deplete the precipitation isotopic values. These events typically arise before and specifically after the monsoon season (Singh & Roxy, 2022). Occasionally monsoon season also experiences such activities.…”

Section: Methodsmentioning

confidence: 99%

Modulation of the Precipitation Isotopes by the Dynamic and Thermodynamic Variables of the Atmosphere in Southern Parts of India

Fousiya

Aravind

Achyutan

et al. 2022

Water Resources Research

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“…The north Indian Ocean accounts for 6% of the global tropical cyclone frequency (Singh and Roxy, 2020). The cyclone season in this basin is characterized by a bimodal distribution with peaks occurring in the premonsoon (May–June) and the postmonsoon season (October–November) (Gray, 1968; Evan and Camargo, 2011).…”

Section: Introductionmentioning

confidence: 99%

Tropical cyclones over the Arabian Sea during the monsoon onset phase

Dhavale

Mujumdar

Roxy

et al. 2021

Intl Journal of Climatology

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Generally, monsoon conditions are unfavourable for cyclogenesis in the Arabian Sea due to the strong vertical wind shear present over the basin which prevents the vertical development of cyclones. However, there are instances where tropical cyclones form over the basin during the onset phase of the Indian summer monsoon (ISM). The current study examines the evolution of the synoptic conditions in the years during 1979–2019 in which a cyclone forms during the onset phase of the ISM. The effect of various atmospheric and oceanic factors, the modulation of wind circulation over the Indian subcontinent and the north Indian Ocean region due to the possible influence of tropical and extratropical weather systems has been taken into consideration. Our analysis indicates that a weak mean monsoonal wind circulation caused by the southward intrusion of subtropical westerlies (at 200 hPa) is conducive for cyclogenesis over the Arabian Sea during the monsoon onset phase. Such a weak onset phase of the monsoon, coupled with the seasonal warm SSTs, may lead to cyclone formation in the Arabian Sea.

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A review of ocean-atmosphere interactions during tropical cyclones in the north Indian Ocean

Cited by 72 publications

References 273 publications

Influence of the ocean on tropical cyclone intensity using a high resolution coupled atmosphere–ocean model: A case study of very severe cyclonic storm Ockhi over the North Indian Ocean

Influence of the ocean on tropical cyclone intensity using a high resolution coupled atmosphere–ocean model: A case study of very severe cyclonic storm Ockhi over the North Indian Ocean

Modulation of the Precipitation Isotopes by the Dynamic and Thermodynamic Variables of the Atmosphere in Southern Parts of India

Tropical cyclones over the Arabian Sea during the monsoon onset phase

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