Pathways to the Production of Precipitating Hydrometeors and Tropical Cyclone Development

Bao, J.-W.; Michelson, S. A.; Grell, E. D.

doi:10.1175/MWR-D-15-0363.1

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Pathways to the Production of Precipitating Hydrometeors and Tropical Cyclone Development

2016
By Bao, J.-W. ; Michelson, S. A. ; Grell, E. D.
Source: Monthly Weather Review, 144(6), 2395-2420.

[PDF-4.10 MB]

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Details:

Journal Title:

Monthly Weather Review
Personal Author:

Bao, J.-W. ; Michelson, S. A. ; Grell, E. D.

Bao, J.-W. ; Michelson, S. A. ; Grell, E. D. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; ESRL (Earth System Research Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences)

OAR (Oceanic and Atmospheric Research) ; ESRL (Earth System Research Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences) Less -
Description:

Pathways to the production of precipitation in two cloud microphysics schemes available in the Weather Research and Forecasting (WRF) Model are investigated in a scenario of tropical cyclone intensification. Comparisons of the results from the WRF Model simulations indicate that the variation in the simulated initial rapid intensification of an idealized tropical cyclone is due to the differences between the two cloud microphysics schemes in their representations of pathways to the formation and growth of precipitating hydrometeors. Diagnoses of the source and sink terms of the hydrometeor budget equations indicate that the major differences in the production of hydrometeors between the schemes are in the spectral definition of individual hydrometeor categories and spectrum-dependent microphysical processes, such as accretion growth and sedimentation. These differences lead to different horizontally averaged vertical profiles of net latent heating rate associated with significantly different horizontally averaged vertical distributions and production rates of hydrometeors in the simulated clouds. Results from this study also highlight the possibility that the advantage of double-moment formulations can be overshadowed by the uncertainties in the spectral definition of individual hydrometeor categories and spectrum-dependent microphysical processes.
Source:

Monthly Weather Review, 144(6), 2395-2420.
DOI:

https://doi.org/10.1175/MWR-D-15-0363.1
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Journal Article
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urn:sha256:8666d9c0bb98a1b785b6a3dc95de92b83c72839508f48cc1fe15e508689ec40d
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https://repository.library.noaa.gov/view/noaa/14500/noaa_14500_DS1.pdf
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