Why is Edmond Halley’s world map considered the first published meteorological chart?

Edmond Halley’s 1686 world map is recognized as the first published meteorological chart because it successfully visualized the distribution of prevailing winds across the world's oceans.1

Halley possessed a notable ability to organize large amounts of data into a meaningful format, which allowed him to map these atmospheric patterns. While modern weather maps—which display synchronous data like pressure and fronts—developed later in the 19th century, Halley’s work remains a pioneering example of using cartography to represent meteorological phenomena.12