Climate Theory and Tropical Cyclone Risk Assessment

Walsh, Kevin

doi:10.1007/978-3-030-02402-4_8

Cited by 1 publication

(1 citation statement)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These were compared to the large-domain rotating RCE f -plane simulations of Zhou et al [54], and many of the sensitivities qualitatively carry over. For example, Merlis et al [40•] found that there were fewer TCs with warming, a sensitivity also found in another GCM [63], and that the genesis rate decreased with warming. Chavas and Reed [64•] systematically varied rotation rate and planet radius to more thoroughly assess the extent to which f -plane sensitivities carry over to spherical geometry.…”

Section: Spherical Geometry With Uniform Thermal Forcingmentioning

confidence: 83%

Aquaplanet Simulations of Tropical Cyclones

Merlis

Held

2019

Curr Clim Change Rep

View full text Add to dashboard Cite

Purpose of Review Tropical cyclones (TCs) are strongly influenced by the large-scale environment of the tropics and will, therefore, be modified by climate changes. Numerical simulations designed to understand the sensitivities of TCs to environmental changes have typically followed one of two approaches: single-storm domain sizes with convection-permitting resolution and uniform thermal boundary conditions or comprehensive global high-resolution (about 50 km in the horizontal) atmospheric general circulation model (GCM) simulations. The approaches reviewed here rest between these two and are an important component of hierarchical modelling of the atmosphere: aquaplanet TC simulations. Recent Findings Idealized model configurations have revealed controls on equilibrium TC size in large-domain simulations of rotating radiative-convective equilibrium. Simulations that include differential rotation (spherical geometry) but retain uniform thermal forcing have revealed a new mechanism of TC propagation change via storm-scale dynamics and show a poleward shift in genesis in response to warming. Simulations with Earth-like meridional thermal forcing gradients have isolated competing influences on TC genesis via shifts in the atmospheric general circulation and the temperature dependence of TC genesis in the absence of mean circulation changes. Summary Aquaplanet simulations of TCs with variants that include or inhibit certain processes have recently emerged as a research methodology that has advanced the understanding of the climatic controls on TC activity. Looking forward, idealized boundary condition model configurations can be used as a bridge between GCM resolution and convection-permitting resolution models and as a tool for identifying additional mechanisms through which climate changes influence TC activity.

show abstract

Section: Spherical Geometry With Uniform Thermal Forcingmentioning

confidence: 83%