A Model of Atmospheric Refractivity and Theoretical Heights of Radio-radar Rays for Miami, Florida PDF Download
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Author: Harold P. Gerrish Publisher: ISBN: Category : Languages : en Pages : 6
Book Description
The purpose of this work is to start from typical seasonal profiles of atmospheric conditions for Miami, Florida, and step by step develop a model of atmospheric refractivity which is satisfactory for such a warm, moist climate. Theoretical ray paths are traced through this type of atmosphere at various antenna elevations and are summarized in the form of range-height charts. Height anomalies from the standard atmosphere using the 4/3-earth-curvature assumption are also illustrated.
Author: Harold P. Gerrish Publisher: ISBN: Category : Languages : en Pages : 6
Book Description
The purpose of this work is to start from typical seasonal profiles of atmospheric conditions for Miami, Florida, and step by step develop a model of atmospheric refractivity which is satisfactory for such a warm, moist climate. Theoretical ray paths are traced through this type of atmosphere at various antenna elevations and are summarized in the form of range-height charts. Height anomalies from the standard atmosphere using the 4/3-earth-curvature assumption are also illustrated.
Author: Publisher: ISBN: Category : Languages : en Pages : 15
Book Description
Work during the past few years by Bauer et al. of MIT Lincoln Laboratory and Bean and Thayer of the NBS Central Radio Propagation Laboratory (CRPL) has established the superiority of a negative-exponential model of the atmospheric radio refractivity vs height function, compared to the linearly decreasing refractivity assumed by the well-known 4/3-earth's-radius method, of accounting for ray bending. However, various values of the zero-altitude refractivity and the exponential constant may be used in the exponential model. For many purposes, such as plotting radar coverage on a range-height-chart, a standard assumption for the atmospheric refraction, corresponding to fixed values of these constants, is desirable. Various factors relevant to selection of such a standard are discussed. A chart and table of ray-path range-height values are presented.
Author: Harold P. Gerrish
Author: Harold P. Gerrish
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Author: Florida. Marine Research Laboratory
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