| 释义 |
▪ I. sodar|ˈsəʊdɑː(r)|
[f. sound n.3 + radar.]
A system for investigating the state of the atmosphere, which works on the principle of radar but uses ultrasonic sound waves instead of microwaves.
1955M. 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. 1974Globe & 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. 1976McGraw-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.
▪ II. sodar
obs. f. solder n.1 |