Show simple item record

contributor authorMa, Zhanhong
contributor authorFei, Jianfang
contributor authorHuang, Xiaogang
contributor authorCheng, Xiaoping
date accessioned2017-06-09T16:57:50Z
date available2017-06-09T16:57:50Z
date copyright2015/01/01
date issued2014
identifier issn0022-4928
identifier otherams-77134.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4219659
description abstracthe contributions of surface sensible heat fluxes (SHX) to the evolution of tropical cyclone (TC) intensity and structure are examined in this study by conducting cloud-resolving simulations. Results suggest that although the peak values of SHX could account for nearly 30% of those of the total surface latent and sensible heat fluxes, the impact of SHX on TC intensification is nonetheless not distinct. However, the TC size shows great sensitivity to the SHX that the storm is shrunk by over 20% after removing the SHX.A potential temperature budget analysis indicates that the adiabatic cooling accompanying the radial inflow is largely balanced by the transfer of sensible heat fluxes rather than the entrainment of subsiding air from aloft. If there is upward transfer of SHX from underlying ocean so that the near-surface potential temperature decreases upward, the SHX will play a vital role; instead, if the upward SHX are absent so that the potential temperature increases upward near the surface, the downward sensible heat fluxes become the dominant contributor to warm the inflow air. The changes in TC size are found to be primarily caused by the rainband activities. The SHX help maintain high convective available potential energy as well as the cold pool feature outside the eyewall, thus being crucial for the growth of outer rainbands. If without upward transport of SHX, the outer-rainband activities could be largely suppressed, thereby leading to a decrease of the TC size.
publisherAmerican Meteorological Society
titleContributions of Surface Sensible Heat Fluxes to Tropical Cyclone. Part I: Evolution of Tropical Cyclone Intensity and Structure
typeJournal Paper
journal volume72
journal issue1
journal titleJournal of the Atmospheric Sciences
identifier doi10.1175/JAS-D-14-0199.1
journal fristpage120
journal lastpage140
treeJournal of the Atmospheric Sciences:;2014:;Volume( 072 ):;issue: 001
contenttypeFulltext


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record