Most of radar hydrogists in Japan have spent a lot of money and time to read and arrange many magnetic tapes recorded by weather radar. A standard format is proposed to share the data file observed by weather radar. We suggest a RAF1 and a RAF2 radar data formats for sequential and random access files. Two systems for the standard file format are also introduced.One is a database system using the RAF2 file format. The other is an image processing system which could treat the data from the database system as image pixels to trace the movements of the rainfall areas.
This paper proposes an integrated model of the behavior of a buoyant jet injected into a uniform cross-flow. Governing equations are the integral conservation equations of volume, mass, cross-streamwise and its perpendicular components of momentum. The ordinary differential equations to predict the variations of cross-sectional area, mean velocity, and the trajectory of a jet axis are derived from the governing equations. Entrainment rate is estimated by considering the vortex induced flow of the ambient fluid.
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