公元627年前后气候变冷与东突厥汗国的突然覆灭

Circa AD 627 Climatic Cooling and the Sudden Collapse of the Eastern Turkic Khanate

公元627年前后,在蒙古高原一带(东突厥汗国)和黄河流域(唐朝)等地区出现了一次持续3年左右的气候变冷:公元627-629年前后,东突厥汗国连续遭受严重的雪灾和霜灾,造成空前的大饥荒。原本强大的东突厥汗国,在公元630年突然覆灭了,气候变冷可能是其中一个重要原因。公元627-629年,黄河流域遭受连续的严重霜灾,造成严重的饥荒。有证据表明,此次气候变冷可能还广泛存在于北半球很多地区。格陵兰冰芯记录和欧洲历史文献记录表明,公元626年前后存在一次大规模火山喷发,此次火山喷发可能是公元627年前后气候变冷的原因。

About 627AD, a climatic cooling event lasting approximately 3 years broke out in the Mongolian Plateau （the Eastern Turkic Khanate） and the Yellow River Valley （the Tang Empire）. During 627 -629AD, the East- ern Turkic Khanate experienced unprecedented successive disastrous snows and frosts as well as ensuring famines. The prosperous Eastern Turkic Khanate collapsed following the disasters. At the same time, the Tang Empire experienced successive disastrous frosts. This climatic cooling event was possibly widespread in the Northern Hemisphere. A major volcanic eruption occurring about 626AD, which was verified by the Greenland ice core record and European historical records, could be the potential cause of this climatic cooling event.