Accession Number : AD0647776

Title :   RESEARCH IN OBJECTIVE WEATHER FORECASTING.

Descriptive Note : Final rept. 1 Jan 64-31 Dec 65,

Corporate Author : DEUTSCHER WETTERDIENST OFFENBACH AM MAIN (WEST GERMANY) RESEARCH DIV

Personal Author(s) : Reiser,H. ; Schanz,P. ; Haselberg,K. v.

Report Date : 31 DEC 1965

Pagination or Media Count : 96

Abstract : The first part of the report deals with the initial data problem by solving adequate diagnostic equations to be observed by the initial data. The aim of this problem is, by adjusting the initial data, to reduce the meteorologically uninteresting noise waves to an unnotable extend, but to leave the physics of the wind-speeding Rossby phenomenal nearly unmodified. Simultaneously these filtering equations offer the opportunity to calculate and to correct those meteorological elements, not measured at all or measured with unsufficient consistency. The second part deals mainly with the linear wave theory of barotropic models and continues and extends studies and ideas presented in AD-604 049. Considered are filtered systems and systems converting the noise components into slower propagating and numerically more harmless waves, but conserving the physics of slowly propagating Rossby phenomena with increasing accuracy. A great variety of filtered or modified systems are obtained, some of them may likely accelerate the numerical integration process, without marked modification of the synoptic atmospheric processes and without relevant increase of the mathematical machinery.

Descriptors :   (*WEATHER FORECASTING, METEOROLOGICAL PHENOMENA), (*WIND, NUMERICAL ANALYSIS), EQUATIONS, NUMERICAL INTEGRATION, HYDROSTATICS, BAROMETRIC PRESSURE, DIFFERENTIAL EQUATIONS, MOMENTUM, MECHANICAL WAVES, GRAVITY, WEST GERMANY

Subject Categories : Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE