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Research Divisions

Group Members :
Peter Dodge

Collaborators :
Gary Barnes (U. Hawaii)
Tim Reinhold (Clemson U.)
Peter Vickery (U. Western Ontario)
Kurt Gurley (UF)
Forrest Masters (UF)

Objective :
Analysis of GPS sonde and field program measurements to enhance understanding of boundary layer processes in hurricanes.

Accomplishments :
Paper describing roughness and drag coefficient behavior in hurricanes published in Nature.

References :

• Powell, M.D., P.J. Vickery, and T.A. Reinhold, 2003: "Reduced drag coefficient for high wind speeds in tropical cyclones" Nature vol 422, March 20 pp.279-283

• Wright, C.W., E.J. Walsh, D. Vandemark, W.B. Krabill, A.W. Garcia, S.H. Houston, M.D. Powell, P.G. Black, and F.D. Marks, 2001: "Hurricane directional wave spectrum spatial variation in the open ocean" Journal of Physical Oceanography, 31(8):2472-2488.

• Barnes, G. M. and M. D. Powell, 1995: Evolution of the inflow boundary layer of Hurricane Gilbert (1988). Mon. Wea. Rev., 123, 2348-2368.

• Powell, M. D., 1990: Boundary layer structure and dynamics in outer hurricane rainbands. Part I: Mesoscale rainfall and kinematic structure. Mon. Wea.Rev., 118, 891-917

• Powell, M. D., 1990: Boundary layer structure and dynamics in outer hurricane rainbands. Part II: Downdraft modification and mixed layer recovery. Mon. Wea. Rev., 118, 918-938

Last modified: 5/16/2003