A QBO cookbook: Sensitivity of the quasi‐biennial oscillation to resolution, resolved waves, and parameterized gravity waves

CI Garfinkel, EP Gerber, O Shamir… - Journal of Advances …, 2022 - Wiley Online Library
An intermediate complexity moist general circulation model is used to investigate the
sensitivity of the quasi‐biennial oscillation (QBO) to resolution, diffusion, tropical …

Projected future changes in equatorial wave spectrum in CMIP6

H Bartana, CI Garfinkel, O Shamir, J Rao - Climate Dynamics, 2023 - Springer
The simulation of the Madden–Julian Oscillation (MJO) and convectively coupled equatorial
waves (CCEWs) is considered in 13 state-of-the-art models from phase 6 of the Coupled …

Rossby waves past the breaking point in zonally dominated turbulence

NM Cao - Journal of Fluid Mechanics, 2023 - cambridge.org
The spontaneous emergence of structure is a ubiquitous process observed in fluid and
plasma turbulence. These structures typically manifest as flows which remain coherent over …

Diagnostics of tropical variability for numerical weather forecasts

M Gehne, B Wolding, J Dias… - Weather and …, 2022 - journals.ametsoc.org
Tropical precipitation and circulation are often coupled and span a vast spectrum of scales
from a few to several thousands of kilometers and from hours to weeks. Current operational …

The Matsuno–Gill model on the sphere

O Shamir, CI Garfinkel, EP Gerber… - Journal of Fluid …, 2023 - cambridge.org
The Matsuno–Gill model on the sphere Page 1 J. Fluid Mech. (2023), vol. 964, A32, doi:10.1017/jfm.2023.369
The Matsuno–Gill model on the sphere Ofer Shamir1, Chaim I. Garfinkel2, Edwin P. Gerber1 …

The power distribution between symmetric and antisymmetric components of the tropical wavenumber–frequency spectrum

O Shamir, C Schwartz, CI Garfinkel… - Journal of the …, 2021 - journals.ametsoc.org
A yet unexplained feature of the tropical wavenumber–frequency spectrum is its parity
distribution, ie, the distribution of power between the meridionally symmetric and …

Turbulence and equatorial waves in moist and dry shallow‐water flow, excited through mesoscale stochastic forcing

J Schröttle, DL Suhas, N Harnik… - Quarterly Journal of the …, 2022 - Wiley Online Library
Turbulence and large‐scale waves in the tropical region are studied using the spherical
shallow‐water equations. With mesoscale vorticity forcing, both moist and dry systems show …

The effect of linear dispersive errors on nonlinear time-stepping accuracy

T Andrews, J Shipton, B Wingate - arXiv preprint arXiv:2305.06685, 2023 - arxiv.org
For simulations of time-evolution problems, such as weather and climate models, taking the
largest stable time-step is advantageous for reducing the wall-clock time. We propose …

A note on the power distribution between symmetric and antisymmetric components of the tropical brightness temperature spectrum in the wavenumber–frequency …

O Shamir, CI Garfinkel, O Adam… - Journal of the …, 2021 - journals.ametsoc.org
A recent study observed the existence of a salient bias toward the symmetric part of the
tropical wavenumber–frequency spectrum. Examination of the tropical brightness …