Abstract: In dealing with differences in upper-air relative humidity over short distances and during small time intervals, investigators have noted a tendency for low values to be reported by U.S. radiosondes, particularly those ...

Abstract: For reasons of economy, it is necessary to minimize the size and scope of the data set to be collected for global analysis and prognostication of macroscale weather phenomena. For this purpose, it is generally agreed that ...

Abstract: A proposed method of forecasting the occurrence of precipitation by forecasting the field of vorticity advection at 300 mb is tested in this study by verifying the concurrent relationship between the two phenomena. A similar ...

Abstract: No Abstract Available

Abstract: Winds and temperatures to above 80 km. measured during the International Geophysical Year by grenade, sphere accelerometer, and Pitot-static tube experiments at Churchill, Manitoba are combined with radiosonde data in time ...

Abstract: No Abstract Available.

Abstract: The anomalous stratospheric warming of January and February 1957 is studied in detail by means of constant pressure charts, time sections, and cross sections. The warming occurred as the meandering Arctic stratospheric jet ...

Abstract: Contour and isotherm patterns of 100-, 50-, and 30-mb. charts have been subjected to harmonic analysis after the manner of Saltzman and Fleisher. The resulting wave-number statistics permit a detailed examination of the ...

Abstract: A method of numerical objective analysis, developed by Cressman, is adapted for application to stratospheric constant pressure surfaces by giving greater weight to wind observations, correcting heights for radiation error, ...

Abstract: The stratospheric warming and circulation change of January and February 1963 are discussed by means of constant pressure charts, time sections and cross sections. Rawinsonde data are combined with wind data from the ...