An analytical model for simulation of the wind field in a typhoon boundary layer

Prediction of typhoon wind by Level 2.5 closure model

“…The typhoon parameters in Tables 2 and 3, T9119 and T0314, are statistically evaluated according to observatory data and GPV data published by JMA. Seawater temperature at typhoon center is fixed at 25 1C and the Table 2 Typhoon parameters of T9119, September 1991 (Meng et al, 1995) Note: l is longitude, c is latitude, C t is typhoon translation speed, C D is typhoon progress direction (line to east is 01 and anticlockwise is positive), P c is typhoon center pressure, P out is ambient pressure, R m is radius of maximum wind. (Mitsuta and Fujii, 1986) considering profile recommended by Architectural Institute of Japan.…”

“…The model's accuracy is examined on the basis of jUj and Y by two typhoons, T9119 and T0314, which caused great damage in Japan. jUj and Y of the former were measured at 100 m elevation (Meng et al, 1995) and the observation point is at the foot of a range of mountains. The latter data were observed at 14.5 m elevation by JMA and the observation point is a flat area on a small island surrounded by the sea.…”

Development of tropical cyclone wind field for simulation of storm surge/sea surface height using numerical ocean model

“…The direction of system's movement is northwestwards. A fairly strong convergent flow exists in the vicinity of the surface as indicated by vector plots, which causes the transport of momentum in the radial direction in the TC boundary layer (Meng et al 1995). In order to show the symmetric and asymmetric structure of model generated wind fields, i.e., the u-and v components are also mapped separately, as shown in the Figs.…”

Prediction of Design Typhoon Wind Speeds and Profiles Using Refined Typhoon Wind Field Model

“…1, 2 and 3 are the basic equations of the refined model for typhoon wind field over sea. The basic equations can be solved by using a similar way as proposed by Meng et al [17], in which typhoon-induced mean wind velocity is regarded as the combination of a friction-free wind and a surface wind caused by friction due to ground surface. The perturbation analysis is performed to find the solution.…”

“…The modeling of typhoon wind field has been investigated by many researchers, such as Chow [11], Gomes and Vickery [12], Holland [13], Batts et al [5], Shapiro [14], Georgiou [15], Thompson and Cardone [16], Vickery and Twisdale [8], and Meng et al [17] among others. All these existing models do consider the physical features of the typhoon boundary layer caused by friction at the earth's surface, but they often neglect the influence of temperature and assume that the central pressure difference of a typhoon does not vary with height above the ground.…”