Variation of Paleo-temperature and Geomagnetic Field Intensity: Do They Responsible for the Rise and Fall of Ancient Civilization in East Asia?

Abstract:

Paleoclimate reconstruction involves various components including the temporal and spatial variation of temperature, precipitation, humidity, and wind. In particular, we tested whether there is a direct correlation among paleo-temperature variation, geomagnetic field intensity fluctuation, and the rise and fall of ancient dynasties in China, Korea, and Japan. Paleo-temperature proxy included a composite record of ice cores, stalagmites, tree-rings, lake sediments, historical documents and peat. For the past 3000 years in East Asia, it is apparent that paleo-temperature and geomagnetic field intensity varies synchronously. Both in China and Korea, the rise and fall of ancient civilizations were less influenced by paleo-temperature or geomagnetic field intensity variation. However, a period of cold temperature matches temporally well with the ascent of new civilizations in Japan.