Turbulent fluxes in the hurricane boundary layer. Part I: momentum flux
In: Journal of the Atmospheric Sciences, Jg. 64 (2007-04-01), Heft 4, S. 1089-1102
Online
academicJournal
Zugriff:
An important outcome from the ONR-sponsored Coupled Boundary Layer Air-Sea Transfer (CBLAST) Hurricane Program is the first-ever direct measurements of momentum flux from within hurricane boundary layers. In 2003, a specially instrumented NOAA P3 aircraft obtained measurements suitable for computing surface wind stress and ultimately estimating drag coefficients in regions with surface wind between 18 and 30 m [s.sup.-1]. Analyses of data are presented from 48 flux legs flown within 400 m of the surface in two storms. Results suggest a roll-off in the drag coefficient at higher wind speeds, in qualitative agreement with laboratory and modeling studies and inferences of drag coefficients using a log-profile method. However, the amount of roll-off and the wind speed at which the roll-off occurs remains uncertain, underscoring the need for additional measurements.
Titel: |
Turbulent fluxes in the hurricane boundary layer. Part I: momentum flux
|
---|---|
Autor/in / Beteiligte Person: | French, Jeffrey R. ; Drennan, William M. ; Zhang, Jun A. ; Black, Peter G. |
Link: | |
Zeitschrift: | Journal of the Atmospheric Sciences, Jg. 64 (2007-04-01), Heft 4, S. 1089-1102 |
Veröffentlichung: | 2007 |
Medientyp: | academicJournal |
ISSN: | 0022-4928 (print) |
Schlagwort: |
|
Sonstiges: |
|