Relationship between convective bursts and the rapid intensification of Typhoon Mujigae (2015)

Tang, Xiba; Ping, Fan; Li, Mengxia; Peng, Jing

doi:10.1002/asl.811

Cited by 13 publications

(18 citation statements)

References 24 publications

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“…Based on the refined 72‐hr model output as presented by Tang et al . (), we studied the various inner‐core structures, distribution features and associated LH effects of different convection types classified from the pre‐RI to RI stage of Typhoon Mujigae. The main results can be summarized as follows: By comparatively analyzing the patterns and percentages of various convections, it is shown that the inner‐core precipitation evolved from a mix of convective–SP prior to RI to a predominance of CP as RI began.…”

Section: Resultsmentioning

confidence: 99%

“…For more details, please refer to Tang et al . (), in which we successfully reproduced the track and intensity of Typhoon Mujigae (2015) by using the WRF model (Figure in Tang et al, ).…”

Section: Model and Methodsmentioning

confidence: 99%

“…Following Tang et al . (), 0600 UTC 3 Oct was considered in this study as the onset of the RI. Radius–height cross sections of azimuthally averaged variables before and during RI are shown in Figure .…”

Section: Distribution Characteristics Of Various Convectionsmentioning

confidence: 99%

“…In Tang et al . (), we successfully reproduced the track and intensity of the rapidly intensifying Typhoon Mujigae (2015) by using the WRF model. Results showed that the explosive development of convections induced an upper‐tropospheric potential vorticity anomaly and caused the downward transfer of momentum from the upper to the middle troposphere, which was conducive to the RI of the typhoon.…”

Section: Introductionmentioning

confidence: 99%

“…However, the work carried out in Tang et al . () considered the overall convections before and during RI; they neither differentiated diverse‐type convections nor explored the associated LH contributions to RI through the potential temperature budget.…”

Section: Introductionmentioning

confidence: 99%

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Convection, latent heating and potential temperature budget in the rapidly intensifying Typhoon Mujigae (2015)

Tang

Ping

Li³

et al. 2019

Atmospheric Science Letters

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Based on a 72‐hr simulation of the rapidly intensifying Typhoon Mujigae (2015), the spatiotemporal evolutions of various inner‐core convections and the associated latent heating (LH) features were investigated. Results showed two interesting turning points from the pre‐rapid intensification (RI) stage to RI onset. One was a change from convective–stratiform mixed precipitation to a convective precipitation (CP)‐dominant trend, while the other happened inside the CP. As the major contributor to LH, during the CP, the dramatic increase and radially inward movement of deep convection and associated LH release from −4 to −2 hr relative to RI, provided some useful clues for predicting the RI of a tropical cyclone (TC). But how do distinct convections act on the RI of a TC? From the potential temperature budget and flow vector intuitive display, there were upper‐ and lower‐level warm cores, fed by the centripetal transport from deep‐convection‐related LH sources and lower‐level radial inflow of weak‐to‐moderate convection‐associated LH sources. The former brought about higher heating efficiency, embodied by a higher rate (2.5 times greater) of pressure decline during RI. Thus, by comparing the LH effects of diverse convections on warm‐core formation, and the role of the warm core in the RI of a TC, the link between various convections and TC intensification can be established.

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Section: Resultsmentioning

confidence: 99%

“…For more details, please refer to Tang et al . (), in which we successfully reproduced the track and intensity of Typhoon Mujigae (2015) by using the WRF model (Figure in Tang et al, ).…”

Section: Model and Methodsmentioning

confidence: 99%

Section: Distribution Characteristics Of Various Convectionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Convection, latent heating and potential temperature budget in the rapidly intensifying Typhoon Mujigae (2015)

Tang

Ping

Li³

et al. 2019

Atmospheric Science Letters

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Convective Bursts Episode of the Rapidly Intensified Typhoon Mujigae (2015)

et al. 2019

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Impacts of New Implementing Strategies for Surface and Model Physics Perturbations in TREPS on Forecasts of Landfalling Tropical Cyclones

Zhang¹

2022

Adv. Atmos. Sci.

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To improve the ensemble prediction system of the tropical regional atmosphere model for the South China Sea (TREPS) in predicting landfalling tropical cyclones (TCs), the impacts of three new implementing strategies for surface and model physics perturbations in TREPS were evaluated for 19 TCs making landfall in China during 2014–16. For sea surface temperature (SST) perturbations, spatially uncorrelated random perturbations were replaced with spatially correlated ones. The multiplier f, which is used to form perturbed tendency in the Stochastically Perturbed Parameterization Tendency (SPPT) scheme, was inflated in regions with evident convective activity (f-inflated SPPT). Lastly, the Stochastically Perturbed Parameterization (SPP) scheme with 14 perturbed parameters selected from the planetary boundary layer, surface layer, microphysics, and cumulus convection parameterizations was added. Overall, all these methods improved forecasts more significantly for non-intensifying than intensifying TCs. Compared with f-inflated SPPT, the spatially correlated SST perturbations generally showed comparable performance but were more (less) skillful for intensifying (non-intensifying) TCs. The advantages of the spatially correlated SST perturbations and f-inflated SPPT were mainly present in the deterministic guidance for both TC track and wind and in the probabilistic guidance for reliability of wind. For intensifying TCs, adding SPP led to mixed impacts with significant improvements in probability-matched mean of modest winds and in probabilistic forecasts of rainfall; while for non-intensifying TCs, adding SPP frequently led to positive impacts on the deterministic guidance for track, intensity, strong winds, and moderate rainfall and on the probabilistic guidance for wind and discrimination of rainfall.

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Relationship between convective bursts and the rapid intensification of Typhoon Mujigae (2015)

Cited by 13 publications

References 24 publications

Convection, latent heating and potential temperature budget in the rapidly intensifying Typhoon Mujigae (2015)

Convection, latent heating and potential temperature budget in the rapidly intensifying Typhoon Mujigae (2015)

Convective Bursts Episode of the Rapidly Intensified Typhoon Mujigae (2015)

Impacts of New Implementing Strategies for Surface and Model Physics Perturbations in TREPS on Forecasts of Landfalling Tropical Cyclones

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