Abstract
This study found that there is a radius within which the sea surface flux for moist enthalpy plays a vital role in determining the intensity of a tropical cyclone. From the results of the numerical experiments using an axisymmetric nonhydrostatic model, it was shown that when the sea surface fluxes are modified within the radius, the intensity suddenly changes on a short timescale. As long as the surface enthalpy flux diminishes outside this radius, the tropical cyclone intensity does not decrease. In the simulated tropical cyclone, this radius locates 7-8 times the radius of the maximum wind speed.
| Original language | English |
|---|---|
| Pages (from-to) | 278-282 |
| Number of pages | 5 |
| Journal | Atmospheric Science Letters |
| Volume | 11 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2010 Oct 1 |
| Externally published | Yes |
Fingerprint
Keywords
- Air-sea interaction
- Enthalpy flux
- Tropical cyclone
ASJC Scopus subject areas
- Atmospheric Science
Cite this
An effective radius of the sea surface enthalpy flux for the maintenance of a tropical cyclone. / Miyamoto, Yoshiaki; Takemi, T.
In: Atmospheric Science Letters, Vol. 11, No. 4, 01.10.2010, p. 278-282.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - An effective radius of the sea surface enthalpy flux for the maintenance of a tropical cyclone
AU - Miyamoto, Yoshiaki
AU - Takemi, T.
PY - 2010/10/1
Y1 - 2010/10/1
N2 - This study found that there is a radius within which the sea surface flux for moist enthalpy plays a vital role in determining the intensity of a tropical cyclone. From the results of the numerical experiments using an axisymmetric nonhydrostatic model, it was shown that when the sea surface fluxes are modified within the radius, the intensity suddenly changes on a short timescale. As long as the surface enthalpy flux diminishes outside this radius, the tropical cyclone intensity does not decrease. In the simulated tropical cyclone, this radius locates 7-8 times the radius of the maximum wind speed.
AB - This study found that there is a radius within which the sea surface flux for moist enthalpy plays a vital role in determining the intensity of a tropical cyclone. From the results of the numerical experiments using an axisymmetric nonhydrostatic model, it was shown that when the sea surface fluxes are modified within the radius, the intensity suddenly changes on a short timescale. As long as the surface enthalpy flux diminishes outside this radius, the tropical cyclone intensity does not decrease. In the simulated tropical cyclone, this radius locates 7-8 times the radius of the maximum wind speed.
KW - Air-sea interaction
KW - Enthalpy flux
KW - Tropical cyclone
UR - http://www.scopus.com/inward/record.url?scp=79952802893&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79952802893&partnerID=8YFLogxK
U2 - 10.1002/asl.292
DO - 10.1002/asl.292
M3 - Article
AN - SCOPUS:79952802893
VL - 11
SP - 278
EP - 282
JO - Atmospheric Science Letters
JF - Atmospheric Science Letters
SN - 1530-261X
IS - 4
ER -