Google DeepMind發表史上最準確的全球天氣預報AI模型GraphCast
· 2023-11-16

已透過GitHub開源的GraphCast模型,可在1分鐘內預測未來10天的天氣,比歐洲中期天氣預報中心(ECMWF)所打造的10天高解析度預測(HRES)更準確也更快速

除了一般的天氣預測之外,DeepMind資深科學家Remi Lam指出,即使沒有經過特別的訓練,但GraphCast可比傳統的預測模型更早辨識惡劣的天氣事件,包括將氣旋追蹤器直接應用於GraphCast預測中,或是呈現大氣河流(AV)的特性,可即早發現颶風與洪水,將有助於在愈來愈極端的全球氣候中提前防範。

在GraphCast之前,Google DeepMind與Google Research已曾發表兩款天氣預報系統,包括可生成90分鐘之後天氣預報的Nowcasting模型,以及24小時預報系統MetNet-3,而這兩個系統都是屬於區域性的,GraphCast則覆蓋了全球。

除了已有包括ECMWF在內的氣象組織採用了GraphCast,DeepMind也認為,開源GraphCast可望激發更多的可能性,包括針對特定氣候現象製作模型,或是針對全球不同地區的需求來優化模型。

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