Integrated Dynamics-Physics Coupling for Weather to Climate Models: GFDL SHiELD With In-Line Microphysics

Zhou, L.; Harris, L.

doi:10.1029/2022GL100519

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i

Integrated Dynamics-Physics Coupling for Weather to Climate Models: GFDL SHiELD With In-Line Microphysics

2022
By Zhou, L. ; Harris, L.
Source: Geophysical Research Letters, 49, e2022GL100519

[PDF-1.61 MB]

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Details:

Journal Title:

Geophysical Research Letters
Personal Author:

Zhou, L. ; Harris, L.

Zhou, L. ; Harris, L. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; GFDL (Geophysical Fluid Dynamics Laboratory) ; CIMES (Cooperative Institute for Modeling the Earth System)

OAR (Oceanic and Atmospheric Research) ; GFDL (Geophysical Fluid Dynamics Laboratory) ; CIMES (Cooperative Institute for Modeling the Earth System) Less -
Description:

We propose an integrated dynamics-physics coupling framework for weather and climate-scale models. Each physical parameterization would be advanced on its natural time scale, revise the thermodynamics to include moist effects, and finally integrated into the relevant components of the dynamical core. We show results using a cloud microphysics scheme integrated within the dynamical core of the Geophysical Fluid Dynamics Laboratory System for High-resolution prediction on Earth-to-Local Domains weather model to demonstrate the promise of this concept. We call it the in-line microphysics as it is in-lined within the dynamical core. Statistics gathered from 1 year of weather forecasts show significantly better prediction skills when the model is upgraded to use the in-line microphysics. However, we do find that some biases are degraded with the in-line microphysics. The in-line microphysics also shows larger-amplitude and higher-frequency variations in cloud structures within a tropical cyclone than the traditionally-coupled microphysics. Finally, we discuss the prospects for further development of this integrated dynamics-physics coupling.
Keywords:

[+]

Weather forecasting Climate Models Dynamics-physics Coupling In-line Microphysics System For High-resolution Prediction On Earth-to-Local Domains (SHiELD) Weather Models
Source:

Geophysical Research Letters, 49, e2022GL100519
DOI:

https://doi.org/10.1029/2022GL100519
Format:

PDF
Document Type:

Journal Article
Funding:

Grant no. NA18OAR4320123 ; Grant no. NA19OAR0220146 ; Grant no. NA19OAR0220147

Grant no. NA18OAR4320123 ; Grant no. NA19OAR0220146 ; Grant no. NA19OAR0220147 Less -
License:

https://creativecommons.org/licenses/by-nc-nd/4.0/
Rights Information:

CC BY-NC-ND
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:66f99e65aafda6162b71b9cee22a59aa77d821eba11a2753b75a75b0c6ee3796
Download URL:

/view/noaa/50561/noaa_50561_DS1.pdf
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