Journal of Meteorology: Recent submissions
Now showing items 901-920 of 1291
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STATISTICAL PROPERTIES OF PRESSURE CHANGE ALOFT
(American Meteorological Society, 1952)The basis of many statistical tests is the assumption that the data are drawn from a normal population. The change in pressure over one to ten days at 3000 dynamic meters, at 50°N and 70°W, is tested, and the circumstances ... -
THE RELATION BETWEEN AIR-PRESSURE MICRO-OSCILLATIONS AND CONCURRENT SYNOPTIC PATTERNS
(American Meteorological Society, 1952)A detailed investigation of air-pressure micro-oscillations of periods less than one minute, as recorded by the Macelwane electromagnetic microbarographs at Florissant, Missouri, and Ottawa, Canada, shows that a definite ... -
TRABERT'S FORMULA AND THE DETERMINATION OF THE WATER CONTENT IN CLOUDS
(American Meteorological Society, 1952)With use of cloud data collected in all types of cumulus clouds, it is shown that the constant in the Trabert equation is not actually a constant but varies with the character of the droplet spectrum. Trabert's formula ... -
ON THE THEORY OF ANNUAL PRESSURE VARIATIONS
(American Meteorological Society, 1952)No Abstract Available -
SURFACE-PRESSURE VARIATIONS FOLLOWING GEOMAGNETICALLY DISTURBED AND GEOMAGNETICALLY QUIET DAYS
(American Meteorological Society, 1952)The average surface-pressure variations after geomagnetically disturbed and geomagnetically quiet days are studied at various locations in a network covering the northern hemisphere between 30 and 70°N. For the same location ... -
FLOW OF ANGULAR MOMENTUM AS A PREDICTOR FOR THE ZONAL WESTERLIES
(American Meteorological Society, 1952)An approximate differential equation is presented, relating the change in speed of the zonal westerly winds to the contemporary zonal wind-speed and the meridional flow of absolute angular momentum. This equation is tested ... -
THE DISTRIBUTION OF RADIATIONAL TEMPERATURE CHANGE IN THE NORTHERN HEMISPHERE DURING MARCH
(American Meteorological Society, 1952)The average radiation flux and flux divergence in the atmosphere during March is computed as a function of the chief absorbents of terrestrial and solar radiation, and the physical parameters of the atmosphere such as ... -
A QUANTITATIVE METHOD FOR 24-HOUR JET-STREAM PROGNOSIS
(American Meteorological Society, 1952)A formula for the rate of propagation of isotachs on a constant-pressure surface is derived and a computational routine, developed during a period of experimental forecasts, is described. The verification of the 24-hour ... -
ON THE CALCULATION OF ATMOSPHERIC TRANSMISSION FUNCTIONS FOR THE INFRARED
(American Meteorological Society, 1952)An atmospheric transmission function is derived for spectral lines of arbitrary line intensities and line spacing. It is shown that the variability of the exponent occurring in this and other atmospheric transmission ... -
ZONAL-INDEX TENDENCY EQUATION AND ITS APPLICATION TO FORECASTS OF THE ZONAL INDEX
(American Meteorological Society, 1952)An equation is derived relating the rate of change of the integrated zonal-index to the poleward angular-momentum flux convergence. The validity of the equation and its utility in forecasting the zonal-index change are ... -
A MECHANISM FOR PRODUCING CLOUD LINES
(American Meteorological Society, 1952)By consideration of the buoyancy effects associated with the release of latent heat, an hypothesis concerning a mechanism for the formation of cloud lines is set up. Adequate data for a quantitative check of this hypothesis ... -
DIURNAL VARIATION OF SUMMER RAINFALL OVER EAST CHINA, KOREA AND JAPAN
(American Meteorological Society, 1952)Over east China, Korea and Japan, diurnal variation of rainfall during the summer months of May to August is analyzed. This region is dominated by the monsoon and is found to have a morning maximum with, if the location ... -
STRATOSPHERE WINDS AND TEMPERATURES IN LOW LATITUDES FROM ACOUSTICAL PROPAGATION STUDIES
(American Meteorological Society, 1952)The results of six determinations of winds and temperatures in the 30?60-km level from acoustical studies are presented. The areas studied are: Canal Zone, January 1950; Hawaii, August 1950; Florida, October 1950; Canal ... -
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AN INVESTIGATION OF ANTICYCLOGENESIS IN ALASKA
(American Meteorological Society, 1952)It is found that the Alaska-northwestern Canada region is the one of most frequent anticyclogenesis (equal to or greater than 7 mb/24 hr) on the northern hemisphere north of 40°N. Results are presented of a synoptic ... -
ON THE EFFICIENCY OF THE ENGINE DRIVING THE ATMOSPHERIC CIRCULATION
(American Meteorological Society, 1952)It is suggested that worthwhile results may be obtained by the use of a suitable form of the second law of thermodynamics for the calculation of the efficiency of the earth's surface and atmosphere, considered as the heat ... -
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ATMOSPHERIC RADIATION AND ITS REFLECTION FROM THE GROUND
(American Meteorological Society, 1952)The complex physical meanings of multiple spectral-line absorption and reradiation by nearer air molecules can be represented satisfactorily by block-spectral bands within the Planckian curves of spectral intensity ... -
CYCLONIC MICROSEISMS GENERATED IN THE WESTERN NORTH ATLANTIC OCEAN
(American Meteorological Society, 1952)Nearly all the microseism storms generated by extra-tropical cyclones in the western North Atlantic during the fall and winter seasons of 1948?49 and 1949?50 have been studied, together with some storms that occurred during ...