map spotting

map spotting

[′map ‚späd·iŋ] (meteorology) map plotting

map plotting

i. The process of transcribing navigational data onto a chart.
ii. The process of transcribing weather information onto maps, diagrams, and so on; it usually refers specifically to decoding synoptic reports and entering those data in a conventional station-model form onto synoptic charts. Also known as map spotting. See synoptic chart.