Identification

Title

Consistent impacts of surface enthalpy and drag coefficient uncertainty between an analytical model and simulated tropical cyclone maximum intensity and storm structure

Abstract

Several previous studies have demonstrated the significant sensitivity of simulated tropical cyclone structure and intensity to variations in surface-exchange coefficients for enthalpy (C-k) and momentum (C-d), respectively. In this study we investigate the consistency of the estimated peak intensity, intensification rate, and steady-state structure between an analytical model and idealized axisymmetric numerical simulations for both constant C-k and C-d values and various wind speeddependent representations of C-k and C-d. The present analysis with constant C-k and C-d values demonstrates that the maximum wind speed is similar for identical C-k/C-d values less than 1, regardless of whether changes were made to C-k or C-d. However, for a given C-k/C-d greater than 1, the simulated and theoretical maximum wind speed are both greater if C-d is decreased compared to C-k increased. This behavior results because of a smaller enthalpy disequilibrium at the radius of maximum winds for larger C-k. Additionally, the intensification rate is shown to increase with C-k and C-d and the steady-state normalized wind speed beyond the radius of maximum winds is shown to increase with increasing C-d. Experiments with wind speed-dependent C-k and C-d were found to be generally consistent, in terms of the intensification rate and the simulated and analytical-model-estimated maximum wind speed, with the experiments with constant C-k and C-d.

Resource type

document

Resource locator

Unique resource identifier

code

http://n2t.net/ark:/85065/d7k64nd7

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

Text

originating controlled vocabulary

title

Resource Type

reference date

date type

publication

effective date

2016-01-01T00:00:00Z

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

publication

effective date

2020-09-01T00:00:00Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Limitations on public access

None

Responsible organisations

Responsible party

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact