Examining the Role of Cloud Radiative Interactions in Tropical Cyclone Development Using Satellite Measurements and WRF Simulations

Wu, S.‐N.; Soden, B. J.; Nolan, D. S.

doi:10.1029/2021GL093259

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Examining the Role of Cloud Radiative Interactions in Tropical Cyclone Development Using Satellite Measurements and WRF Simulations

2021
By Wu, S.‐N. ; Soden, B. J. ; Nolan, D. S.
Source: Geophysical Research Letters 48(15): e2021GL093259

[PDF-1.37 MB]

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Details:

Journal Title:

Geophysical Research Letters
Personal Author:

Wu, S.‐N. ; Soden, B. J. ; Nolan, D. S.

Wu, S.‐N. ; Soden, B. J. ; Nolan, D. S. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; CPO (Climate Program Office)

OAR (Oceanic and Atmospheric Research) ; CPO (Climate Program Office) Less -
Description:

This study examines the role of cloud-radiative interactions in the development of tropical cyclones using satellite measurements and model simulations. Previous modeling studies have found that the enhanced cloud radiative heating from longwave radiation in the convective region plays a key role in promoting the development of tropical convective systems. Here, we use satellite measurements and Weather Research and Forecasting Model (WRF) simulations to further investigate how critical cloud radiative interactions are to the development of tropical cyclones (TCs). Clouds and the Earth's Radiant Energy System measurements show that intensifying TCs have greater radiative heating from clouds within the TC area than weakening ones. Based on this result, idealized WRF simulations are performed to examine the importance of the enhanced radiative heating to TC intensification. Sensitivity experiments demonstrate that removing cloud-radiative interactions often inhibits tropical cyclogenesis, suggesting that cloud-radiative interactions play a critical role.
Keywords:

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Cyclones Mathematical Models Remote Sensing
Source:

Geophysical Research Letters 48(15): e2021GL093259
DOI:

https://doi.org/10.1029/2021GL093259
Document Type:

Journal Article
Funding:

Grant no. NA18OAR4310421
Rights Information:

CC BY
Compliance:

Submitted
Main Document Checksum:

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urn:sha256:2fa5896a94d4ab10c4050e014921353df1913331bd1f884cd8bc1312e32d0406
Download URL:

https://repository.library.noaa.gov/view/noaa/44736/noaa_44736_DS1.pdf
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