Recent global nonhydrostatic modeling approach without using a cumulus parameterization to understand the mechanisms underlying cloud changes due to global …

AT Noda, T Ohno, C Kodama, YW Chen… - Progress in Earth and …, 2023 - Springer
Clouds are the primary source of uncertainty in the prediction of climate change. To reduce
the uncertainty of cloud simulations and overcome this difficulty in prediction, many climate …

High-performance computing in meteorology under a context of an era of graphical processing units

T Nakaegawa - Computers, 2022 - mdpi.com
This short review shows how innovative processing units—including graphical processing
units (GPUs)—are used in high-performance computing (HPC) in meteorology, introduces …

Reduced floating-point precision in regional climate simulations: an ensemble-based statistical verification

H Banderier, C Zeman, D Leutwyler… - Geoscientific Model …, 2024 - gmd.copernicus.org
The use of single precision in floating-point representation has become increasingly
common in operational weather prediction. Meanwhile, climate simulations are still typically …

A 1024-member ensemble data assimilation with 3.5-km mesh global weather simulations

H Yashiro, K Terasaki, Y Kawai, S Kudo… - … Conference for High …, 2020 - ieeexplore.ieee.org
Numerical weather prediction (NWP) supports our daily lives. Weather models require
higher spatiotemporal resolutions to prepare for extreme weather disasters and reduce the …

Fast, cheap, and turbulent—Global ocean modeling with GPU acceleration in python

D Häfner, R Nuterman… - Journal of Advances in …, 2021 - Wiley Online Library
Even to this date, most earth system models are coded in Fortran, especially those used at
the largest compute scales. Our ocean model Veros takes a different approach: it is …

Fluid simulations accelerated with 16 bits: Approaching 4x speedup on A64FX by squeezing ShallowWaters. jl into Float16

M Klöwer, S Hatfield, M Croci… - Journal of Advances …, 2022 - Wiley Online Library
Most Earth‐system simulations run on conventional central processing units in 64‐bit double
precision floating‐point numbers Float64, although the need for high‐precision calculations …

Climate‐change modelling at reduced floating‐point precision with stochastic rounding

T Kimpson, EA Paxton, M Chantry… - Quarterly Journal of the …, 2023 - Wiley Online Library
Reduced‐precision floating‐point arithmetic is now deployed routinely in numerical weather
forecasting over short timescales. However, the applicability of these reduced‐precision …

[PDF][PDF] SpeedyWeather. jl: Reinventing atmospheric general circulation models towards interactivity and extensibility

M Klöwer, M Gelbrecht, D Hotta, J Willmert… - Journal of Open …, 2024 - joss.theoj.org
SpeedyWeather. jl is a library to simulate and analyze the global atmospheric circulation on
the sphere. It implements several 2D and 3D models which solve different sets of equations:• …

Periodic orbits in chaotic systems simulated at low precision

M Klöwer, PV Coveney, EA Paxton, TN Palmer - Scientific Reports, 2023 - nature.com
Non-periodic solutions are an essential property of chaotic dynamical systems. Simulations
with deterministic finite-precision numbers, however, always yield orbits that are eventually …

[HTML][HTML] Scale-selective precision for weather and climate forecasting

M Chantry, T Thornes, T Palmer… - Monthly Weather …, 2019 - journals.ametsoc.org
Scale-Selective Precision for Weather and Climate Forecasting in: Monthly Weather Review
Volume 147 Issue 2 (2019) Jump to Content Jump to Main Navigation Logo Logo Logo Logo …