An investigation of vertical extrapolation of the vector horizontal wind field
Carlson, Burford A.
Renard, Robert J.
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Extrapolation techniques including the geostrophic and gradient thermal wind, average wind shear from United States Weather Bureau maximum-wind analyses, and persistence were statistically compared for January 1960 over the United States. Calculations were made for layers contained between 200 mb and 40,000 or 15,000 feet, the thicknesses averaging 2100 or 6500 feet, respectively. Graphic results are presented for both speed and direction errors for each type of extrapolation. It is shown that low wind speed, cross-isobar flow, and large curvature are associated with significant extrapolation errors. The author is grateful for the patience and expert counsel of Professor R. J. Renard of the United States Naval Postgraduate School, Monterey, California.
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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