Showing papers in "Bulletin of the American Meteorological Society in 1946"
62 citations
TL;DR: In this article, a statistical summary of characteristics of 300 rain areas observed by radar at Spring Lake, N. J., June-Aug. 1945, is given, along with a statistical analysis of the characteristics of the rain areas.
Abstract: Direct observation of rain areas by radar yields new information on thunderstorm characteristics and behavior. A statistical summary of characteristics of 300 showers observed by radar at Spring Lake, N. J., June–Aug. 1945, is given.
23 citations
21 citations
12 citations
10 citations
7 citations
7 citations
6 citations
5 citations
TL;DR: In this article, the results obtained at the Zi Ka Wei Observatory during the past five years, by means of the usual ionospheric radio soundings which give the heights of the well-known E and F layers.
Abstract: THE FOLLOWING LINES d e s c r i b e s o m e very interesting and practical results obtained at the Zi Ka Wei Observatory during the past five years, by means of the usual ionospheric radio soundings which give the heights of the well-known E and F layers. As early as 1936, Martin and Pulley (of the Radio Research Board, Melbourne) reported on a \"Correlation of conditions in the ionosphere with barometric pressure at the ground. ,M We thought this idea very interesting and started research along that line. We wanted to find out if the motions of the different air masses which produce the weather of our regions could be correlated with the results obtained by the usual ionospheric sounding technique. As all meteorologists know, once the synoptic weather chart is plotted, one next asks what air mass is \"dominating the weather,'1 for with that information the numerous meteorological data available can immediately be interpreted for forecasting the coming weather. Of course, the tendency of barometer, the isallobars, etc., have been a help for such work; but one must admit that many, too many, times, in regions where they indicated the pressure should decrease, e.g., the weather elements behaved in a quite different way than anticipated. Our ionospheric technique, which has given good results, will now be described:— We remember that of the E-layer reflections there is a class which has been called \"sporadic , \" a word that implies we do not know why they happen, t We chose for our pulses (twenty-thousandth of a second) a frequency which would not give the normal E reflections, namely 6000 kc. As far as we had been able to find in publications, echoes obtained from the E layer on such a frequency were usually called \"sporadic . \
4 citations
TL;DR: The physical dimensions of the stratosphere, viz. pressure, density, number of molecules per cubic centimeter, mean free path, molecular speed, and number of impacts, have been calculated afresh as mentioned in this paper.
Abstract: The physical dimensions of the stratosphere, viz. pressure, density, number of molecules per cubic centimeter, mean free path, molecular speed, and number of impacts, have been calculated afresh. The pressure at 100 km agrees very well with the value found empirically, hence the conclusion that the stratosphere must be warm, and some earlier assumptions furnish the corresponding vertical distribution of temperature. * See previous article, this BULLETIN, p. 331.
TL;DR: In this paper, the authors present a non-technical survey of the research being done on the meteorological aspects of aircraft icing, and the organization of the program and functions of four installations in the U. S. are indicated.
Abstract: This paper presents a non-technical survey of the research being done on the meteorological aspects of aircraft icing. The organization of the program and functions of four installations in the U. S. are indicated. After a short qualitative discussion of the flow around cylinders, several new specialized instruments are described, and some of the theory developed to interpret their data is treated briefly.