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Title: Surface temperature dependence of tropical cyclone-permitting simulations in a spherical model with uniform thermal forcing

Abstract

Tropical cyclone (TC)-permitting general circulation model simulations are performed with spherical geometry and uniform thermal forcing, including uniform sea surface temperature (SST) and insolation. The dependence of the TC number and TC intensity on SST is examined in a series of simulations with varied SST. The results are compared to corresponding simulations with doubly periodic f -plane geometry, rotating radiative convective equilibrium. The turbulent equilibria in simulations with spherical geometry have an inhomogenous distribution of TCs with the density of TCs increasing from low to high latitudes. The preferred region of TC genesis is the subtropics, but genesis shifts poleward and becomes less frequent with increasing SST. In conclusion, both rotating radiative convective equilibrium and spherical geometry simulations have decreasing TC number and increasing TC intensity as SST is increased.

Authors:
 [1];  [2];  [3];  [4]
  1. McGill Univ., Montreal, QC (Canada)
  2. Univ. of California, San Diego, La Jolla CA (United States)
  3. NOAA/Geophysical Fluid Dynamics Lab., Princeton, NJ (United States)
  4. UCAR/Geophysical Fluid Dynamics Lab., Princeton, NJ (United States)
Publication Date:
Research Org.:
Princeton Univ., NJ (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1469186
Alternate Identifier(s):
OSTI ID: 1402362
Grant/Contract Number:  
SC0006841
Resource Type:
Accepted Manuscript
Journal Name:
Geophysical Research Letters
Additional Journal Information:
Journal Volume: 43; Journal Issue: 6; Journal ID: ISSN 0094-8276
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; tropical cyclones; climate

Citation Formats

Merlis, Timothy M., Zhou, Wenyu, Held, Isaac M., and Zhao, Ming. Surface temperature dependence of tropical cyclone-permitting simulations in a spherical model with uniform thermal forcing. United States: N. p., 2016. Web. doi:10.1002/2016GL067730.
Merlis, Timothy M., Zhou, Wenyu, Held, Isaac M., & Zhao, Ming. Surface temperature dependence of tropical cyclone-permitting simulations in a spherical model with uniform thermal forcing. United States. doi:10.1002/2016GL067730.
Merlis, Timothy M., Zhou, Wenyu, Held, Isaac M., and Zhao, Ming. Tue . "Surface temperature dependence of tropical cyclone-permitting simulations in a spherical model with uniform thermal forcing". United States. doi:10.1002/2016GL067730. https://www.osti.gov/servlets/purl/1469186.
@article{osti_1469186,
title = {Surface temperature dependence of tropical cyclone-permitting simulations in a spherical model with uniform thermal forcing},
author = {Merlis, Timothy M. and Zhou, Wenyu and Held, Isaac M. and Zhao, Ming},
abstractNote = {Tropical cyclone (TC)-permitting general circulation model simulations are performed with spherical geometry and uniform thermal forcing, including uniform sea surface temperature (SST) and insolation. The dependence of the TC number and TC intensity on SST is examined in a series of simulations with varied SST. The results are compared to corresponding simulations with doubly periodic f -plane geometry, rotating radiative convective equilibrium. The turbulent equilibria in simulations with spherical geometry have an inhomogenous distribution of TCs with the density of TCs increasing from low to high latitudes. The preferred region of TC genesis is the subtropics, but genesis shifts poleward and becomes less frequent with increasing SST. In conclusion, both rotating radiative convective equilibrium and spherical geometry simulations have decreasing TC number and increasing TC intensity as SST is increased.},
doi = {10.1002/2016GL067730},
journal = {Geophysical Research Letters},
number = 6,
volume = 43,
place = {United States},
year = {2016},
month = {2}
}

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    Works referencing / citing this record:

    Aquaplanet Simulations of Tropical Cyclones
    journal, June 2019


    Aquaplanet Simulations of Tropical Cyclones
    journal, June 2019