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Tropical Cyclones in Global Storm-Resolving Models [PDF]

Journal of the Meteorological Society of Japan, 2021
Recent progress in computing and model development has initiated the era of global storm-resolving modeling and with it the potential to transform weather and climate prediction. Within the general theme of vetting this new class of models, the present study evaluates nine global-storm resolving models in their ability to simulate tropical cyclones ...
Falko Judt, Rosimar Rios-Berrios, Benoit Vannière   +2 more
exaly   +7 more sources

Tropical Cirrus Are Highly Sensitive to Ice Microphysics Within a Nudged Global Storm‐Resolving Model

Geophysical Research Letters
Cirrus dominate the longwave radiative budget of the tropics. For the first time, the variability in cirrus properties and longwave cloud radiative effects (CREs) that arises from using different microphysical schemes within nudged global storm‐resolving
R. L. Atlas, C. S. Bretherton, A. B. Sokol, P. N. Blossey, M. F. Khairoutdinov   +4 more
doaj   +6 more sources

The Fractal Nature of Clouds in Global Storm‐Resolving Models [PDF]

Geophysical Research Letters, 2021
AbstractClouds in observations are fractals: they show self‐similarity across scales ranging from 1 to 1,000 km. This includes individual storms and large‐scale cloud structures typical of organized convection. It is not known whether global storm‐resolving models reproduce the observed fractal scaling laws for clouds and organized convection.
Hannah M Christensen, Oliver G A Driver
exaly   +6 more sources

Impact of Microphysics on Tropical Precipitation Extremes in a Global Storm‐Resolving Model [PDF]

Geophysical Research Letters, 2021
Abstract The impact of microphysics on tropical precipitation extremes is explored with a global storm‐resolving model by modifying the terminal velocity of raindrops. Depending on the time scales, precipitation extremes respond differently.
Jiawei Bao, Julia M Windmiller
exaly   +5 more sources

Machine‐Learned Climate Model Corrections From a Global Storm‐Resolving Model: Performance Across the Annual Cycle

Journal of Advances in Modeling Earth Systems, 2023
One approach to improving the accuracy of a coarse‐grid global climate model is to add machine‐learned (ML) state‐dependent corrections to the prognosed model tendencies, such that the climate model evolves more like a reference fine‐grid global storm ...
Anna Kwa, Spencer K. Clark, Brian Henn, Noah D. Brenowitz, Jeremy McGibbon, Oliver Watt‐Meyer, W. Andre Perkins, Lucas Harris, Christopher S. Bretherton   +8 more
doaj   +3 more sources

The Contribution of Convection to the Stratospheric Water Vapor: The First Budget Using a Global Storm‐Resolving Model [PDF]

Journal of Geophysical Research D: Atmospheres, 2022
AbstractThe deepest convection on Earth injects water in the tropical stratosphere, but its contribution to the global stratospheric water budget remains uncertain. The Global Storm‐Resolving Model ICOsahedral Non‐hydrostatic is used to simulate the moistening of the lower stratosphere for 40 days during boreal summer.
Thibaut Dauhut, Cathy Hohenegger
exaly   +5 more sources

Multiscale Convective Circulations and Scale Interactions in a Global Storm‐Resolving Model

Journal of Advances in Modeling Earth Systems
Understanding the relation between large‐scale (≳100 km) tropical atmospheric motions and small‐scale convective circulations remains a challenge, despite such multiscale interactions playing a crucial role in the dynamics of large‐scale circulations. In
Pedro Angulo‐Umana, Daehyun Kim, Peter N. Blossey, Marat Khairoutdinov   +3 more
doaj   +3 more sources

Muted Amazon Rainfall Response to Deforestation in a Global Storm‐Resolving Model

Geophysical Research Letters
Ongoing Amazon deforestation has raised concerns about forest dieback via induced precipitation changes. Previous studies have found that complete deforestation reduces evapotranspiration, contributing to low precipitation rates that would limit the ...
Arim Yoon, Cathy Hohenegger
doaj   +4 more sources

Climate sensitivity and relative humidity changes in global storm-resolving model simulations of climate change. [PDF]

Sci Adv
The climate simulation frontier of a global storm-resolving model (GSRM; ork-scale model because of its kilometer-scale horizontal resolution) is deployed for climate change simulations. The climate sensitivity, effective radiative forcing, and relative humidity changes are assessed in multiyear atmospheric GSRM simulations with perturbed sea-surface ...
Merlis TM, Cheng KY, Guendelman I, Harris L, Bretherton CS, Bolot M, Zhou L, Kaltenbaugh A, Clark SK, Vecchi GA, Fueglistaler S.   +10 more
europepmc   +4 more sources

Tropical Cirrus in Global Storm‐Resolving Models: 1. Role of Deep Convection [PDF]

Earth and Space Science, 2022
Pervasive cirrus clouds in the upper troposphere and tropical tropopause layer (TTL) influence the climate by altering the top‐of‐atmosphere radiation balance and stratospheric water vapor budget.
J. M. Nugent, S. M. Turbeville, C. S. Bretherton, P. N. Blossey, T. P. Ackerman   +4 more
doaj   +2 more sources