In fact Emperor Yao would have been the Chinese Emperor at the time of Noah's flood.
This is what the Chinese wrote about flooding at that time.
According to the legend, Yao became the ruler at 20 and died at 119 when he passed his throne to Shun the Great, to whom he had given his two daughters in marriage. According to the Bamboo Annals, Yao abdicated his throne to Shun in his 73rd year of reign, and continued to live during Shun's reign for another 28 years.
It was during the reign of Emperor Yao that the Great Flood began, a flood so vast that no part of Yao's territory was spared, and both the Yellow River and the Yangtze valleys flooded. The alleged nature of the flood is shown in the following quote:
“Like endless boiling water, the flood is pouring forth destruction. Boundless and overwhelming, it overtops hills and mountains. Rising and ever rising, it threatens the very heavens. How the people must be groaning and suffering! ”
—Emperor Yao, as quoted in the Book of History, describing the flood.
According to both historical and mythological sources, the flooding continued relentlessly. Yao sought to find someone who could control the flood, and turned for advice to his special adviser, or advisers, the Four Mountains (四嶽 or 四岳, Sìyuè); who, after deliberation, gave Emperor Yao some advice which he did not especially welcome. Upon the insistence of Four Mountains, and over Yao's initial hesitation, the person Yao finally consented to appoint in charge of controlling the flood was Gun, the Prince of Chong, who was a distant relative of Yao's through common descent from the Yellow Emperor.
So there was a serious flood that even reached into China, but it did not kill everyone.https://en.wikipedia.org/wiki/Emperor_Yao#Legends
Even today there is proof.https://www.scmp.com/tech/science-research/article/1845192/huge-hidden-ocean-under-xinjiangs-tarim-basin-larger-all-great