Synoptic Weather Chart

The surface synoptic chart is the standardised graphic language of weather analysis from the 1950s through the 1990s. On cool blue-grey met paper, thin black isobars wind in concentric curves around bold H and L pressure centres, overprinted with barbed blue cold fronts and rounded red warm fronts.

Born of the Bergen School's frontal theory, it is a coded, precise dialect — every symbol carries meaning, nothing is decorative. This system borrows that litho-print discipline: monospace station data, clean grotesque labels, and standards-accurate front symbology on a flat printed sheet.

地面天气分析图是 1950 至 1990 年代各国气象部门通用的图形语言。在冷调蓝灰色的气象 专用纸上，纤细的黑色等压线绕着粗体的 H、L 气压中心层层盘旋，再叠印上带刺的蓝色冷锋 与圆弧的红色暖锋。

它源自卑尔根学派的锋面理论，是一套编码精确的方言——每个符号都承载含义，没有一笔是 装饰。本设计系统沿用那份石印般的克制：等宽字体呈现测站数据，干净的无衬线字体作标签， 锋面符号严格遵循标准，全部落在一张平整的印刷纸面上。