Encyclopedia of weather icons explains pictures.

A map showing the weather conditions of a certain area or the whole earth, in which meteorological data of various places are recorded with numbers and prescribed symbols. There are two kinds of weather maps, high altitude and ground, which record the meteorological data of high altitude and ground respectively. The meteorological department uses it to predict weather changes.

Word decomposition

The explanation of the sky is high above: the sky. Sky. Plough (Big Dipper). Tianyuan (heaven and abyss, different metaphors) The sky is boundless. Top: The top of the sky (the blank space at the top of the page). Climate: weather. It's very cold. Season, season: winter.