2021-08-09 20:48:48
#Answers
1
TRUE the National Center for Atmospheric Research (NCAR) in the USA is experimenting with new ways of achieving a greater level of accuracy in snowfall figures.
2
NOT GIVEN Guttman’s colleagues have been testing a number of new snow-measuring devices, including ultrasonic snow depth sensors, which send out a pulse of noise and measure how long it takes to bounce back from the surface below the snow, and laser sensors which work on the same basic principle but use light instead of sound. (It does not tell you if the ultrasonic sensors are more reliable than laser sensors.)
3
FALSE Another device for measuring snowfall is a type of open container with motor-vehicle antifreeze inside it. The antifreeze melts the snow as it falls and sensors measure the weight of the resulting liquid.
4
FALSE Not only would this method be more cost effective than other methods …
5
TRUE it might also be particularly useful for measuring the snow in remote locations such as inaccessible upland areas and the highest mountain peaks and ranges.
6
NOT GIVEN Basically, this is just a flat piece of white-painted wood on which snow can accumulate. Windshields placed around these can also add to the accuracy of measurements. (It does not say whether the snow board is effective in areas with high winds or not.)
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