Winds-aloft plotting board
From AMS Glossary
Revision as of 19:17, 25 April 2012 by Perlwikibot
winds-aloft plotting board
The board is designed so that the projections of the path of a balloon as a function of azimuth may be graphed in a convenient manner. The separation of the points that correspond to the horizontal wind is read from a special measuring scale converting distance to speed.