单词 | sodar |
释义 | sodarn. A system for investigating the state of the atmosphere, which works on the principle of radar but uses ultrasonic sound waves instead of microwaves. ΘΚΠ the world > the earth > weather and the atmosphere > weather > study or science of weather > meteorological instruments > [noun] > using radar or sonar weather radar1946 radar sonde1949 sodar1955 1955 M. Reifer Dict. New Words 192/2 Sodar,..an instrument for detecting weather conditions by recording on an oscilloscope.. the reflected sound waves which have been projected directly overhead. 1974 Globe & Mail (Toronto) 1 June 5/1 These new instruments, called lidar..and sodar.., could be used for things like tracing and identifying particles in the atmosphere..and detecting dangerous wind patterns and turbulence around airport runways. 1976 McGraw-Hill Yearbk. Sci. & Technol. 402/2 The active network includes not only the standard pilot balloons and radiosondes with which meteorologists customarily measure wind, temperature, and humidity aloft, but also weather radars.., lidars..and sodars. This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2018). < n.1955 |
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