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doi: 10.1175/1520-0477-40.2.49pmid: N/A
A simple instrument is described for measuring or recording wind speed, using a 1-in. length of heated platinum wire as the sensing element. As a practical laboratory and field device, its main virtues are its excellent response at low wind speeds and its utility in confined spaces. Calibration techniques are described, and the circuit diagram is included for a three-range instrument.
doi: 10.1175/1520-0477-40.2.53pmid: N/A
A mechanism for the automatic deflation of captive balloons in the event of mooring cable breakage has reduced a hazard to air navigation. Devised at the U. S. Army Electronic Proving Ground (USAEPG) at Fort Huachuca, Arizona, this mechanism has also effected savings in recovered balloons and meteorological instruments.
doi: 10.1175/1520-0477-40.2.56pmid: N/A
Mesometeorology is the study of atmospheric motions of characteristic dimensions too small to make them readily identifiable on the macroscale synoptic maps in use today. Results of mesoanalysis reveal systems which have definite order, pattern, and chronological continuity, and with which most pertinent local weather seems to be associated. The role of mesometeorology in local weather forecasting is analyzed.Nine senior meteorologists with considerable experience and stature in the field of forecasting participated in a forecasting experiment wherein three were given mesometeorological analyses and six were given the regular analyses available at a forecasting center. The results showed that the former group was able to identify and forecast the short-range significant variations in wind, temperature, and precipitation in time and place while the others in general could not.
Hilst, Glenn R.; Nickola, Paul W.
doi: 10.1175/1520-0477-40.2.73pmid: N/A
The importance of wind erosion with respect to soil conservation and to the spreading of noxious particles subsequent to deposit on a soil surface is indicated. The processes of wind erosion and transport are reviewed and are then illustrated by some measurements made at Hanford. Particle, surface, and meteorological factors which influence erosion by wind are listed and discussed briefly.
Fawcett, Edwin B.; Snellman, Leonard W.
doi: 10.1175/1520-0477-40.2.78pmid: N/A
A mean-wind technique is presented for estimating (for a constant-pressure level) the position and strength of the core of maximum winds between two rawinsonde stations located four to nine latitude degrees apart. An example of the application of the method is given, and shortcomings of the method are described. To test the method, 37 computations were made. The resulting core speeds and positions are compared with Project Jet-Stream flight winds and Whooper reconnaissance winds. The mean speed-error of the 37 computations is 3.5 kn and the RMS error is 17 kn. It is concluded that the mean-wind technique is operationally feasible and that its employment in conjunction with other analysis techniques now in use will contribute to analysis in the jet-stream region.
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