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A dated line sweeping up the archipelago.
Also known as: Cherry blossom front, Sakura front
The line drawn across a map of Japan joining the places where cherry trees are expected to bloom on the same date.
Joins the places expected to reach cherry blossom on a given date.
Contexts: Public information, Maps
Borrows the drafting convention of a weather front — a line across a map joining points of equal condition — and applies it to a biological event, which is why it looks like meteorology and is read like it. The observation is made against named reference trees at each station rather than against the district's trees generally.
Contexts: Public information, Maps
A curved line drawn across a map with a date written along it, one line per date, the set of them sweeping from the south-west to the north-east.
A fuller structured visual breakdown is not yet documented for this symbol.