Journal of Meteorology 

About: Journal of Meteorology is an academic journal. The journal publishes majorly in the area(s): Geostrophic wind & Atmosphere. It has an ISSN identifier of 0970-3543. Over the lifetime, 694 publications have been published receiving 17859 citations.

The dynamics of long waves in a baroclinic westerly current

Abstract: Previous studies of the long-wave perturbations of the free atmosphere have been based on mathematical models which either fail to take properly into account the continuous vertical shear in the zonal current or else neglect the variations of the vertical component of the earth's angular velocity. The present treatment attempts to supply both these elements and thereby to lead to a solution more nearly in accord with the observed behavior of the atmosphere. By eliminating from consideration at the outset the meteorologically unimportant acoustic and shearing-gravitational oscillations, the perturbation equations are reduced to a system whose solution is readily obtained. Exact stability criteria are deduced, and it is shown that the instability increases with shear, lapse rate, and latitude, and decreases with wave length. Application of the criteria to the seasonal averages of zonal wind suggests that the westerlies of middle latitudes are a seat of constant dynamic instability. The unstable wav...

Power spectrum of horizontal wind speed in the frequency range from 0.0007 to 900 cycles per hour

Abstract: A power-spectrum analysis of horizontal wind speed is made over a wide range of frequencies by piecing together various portions of the spectrum. There appear to be two major eddy-energy peaks in the spectrum ; one peak occurs at a period of about 4 days, and a second peak occurs at a period of about 1 minute. Between the two peaks, a broad spectral gap is centered at a frequency ranging from 1 to 10 cycles per hour. The spectral gap seems to exist under varying terrain and synoptic conditions.

Errors inherent in the radar measurement of rainfall at attenuating wavelengths

Abstract: An equation for the rate of rainfall at a given range from the radar is derived. This is expressed in terms of the power level of the received signal (corrected for attenuation by intervening cloud and atmospheric gases) and takes account of radar attenuation due to intervening rain. The equation includes a constant which measures the performance of the radar and is determined by direct calibration. At attenuating wavelengths (at 3 cm; to some extent at 5.6 cm) a small error in the calibration constant causes a large error in the measured rainfall. This error, which varies with range and may thus cause serious distortion, is, in fact, liable to be more serious than that caused if the attenuation were neglected entirely. Correcting for attenuation is therefore not recommended, unless the calibration error may be held within extremely narrow limits. Very small calibration errors may be achieved by calibrating the radar by means of a rain gauge located at a point where the attenuation is appreciable...

Mean soundings for the west indies area

Abstract: Mean aerological data for the West Indies area have been prepared from ten-year records for three stations Mean monthly height, temperature and relative humidity data are tabulated for constant pressure surfaces More detailed information, including density, potential temperature and specific humidity, is shown for the mean annual and the mean “hurricane season” soundings The mean data are compared with those previously presented and some of the interesting climatological features are discussed