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Lawrence A. Hughes

Abstract

Data from a number of reconnaissance flights into large Pacific tropical cyclones are combined to obtain a generalized pattern of winds at low level (about 1000 feet) under both stationary and non-stationary conditions. With these winds, a number of dependent computations are made including relative trajectories, divergence, vertical motion, rainfall, energy, and relative vorticity.

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Lawrence A. Hughes

Abstract

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Sverre Petterssen
,
M. A. Estoque
, and
Lawrence A. Hughes

Abstract

An experiment was conducted during the period 11 January to 21 February 1956, for the purpose of determining the manner in which graphical integrations can best be used in providing prognostic charts for sea level and for the 500-millibar level. While the graphical integrations were used as a first approximation, supplementary techniques were applied to obtain final forecasts of the pressure distribution at sea level. The results of the verification are discussed and compared with those pertaining to other forecasting procedures. The geographical distribution of errors is discussed and interpreted.

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