Kurihara, Y., and R. E. Tuleya, 1978: A scheme of dynamic initialization of the boundary layer in a primitive equation model. Monthly Weather Review, 106 (1), 114-123.
Abstract: A scheme of dynamic initialization of a primitive equation model is proposed
with an emphasis on the dynamic adjustment in the boundary layer. The pre-initialization
analysis is important since the restorative method is used in the subsequent
dynamic initialization. The first phase of dynamic initialization is designed
to establish a reasonable boundary layer structure. For this purpose, a
time integration of the primitive equations is performed under a strong
constraint such that all meteorological fields except momentum in the boundary
layer are frozen. Use of an implicit form for the vertical diffusion term
is recommended. The second phase is formulated to reduce the high-frequency
noise in the final initialized field. Cyclic integration with a selective
damping scheme is carried out under a restorative constraint.
The proposed scheme is applied to a case of simple zonal flow and the evolution
of the boundary layer flow is shown. The scheme is also tested for a case
of mature tropical cyclone. Starting from the wind data in the free atmosphere
only, the initial condition of the model is derived. Subsequent time integration
of the model compares favorably with the integration in a control experiment.