Extreme weather events recorded by daily to hourly resolution biogeochemical proxies of marine giant clam shells
Hong Yan, Chengcheng Liu, Zhisheng An, Wei Yang, Yuanjian Yang, Ping Huang, Shican Qiu, Pengchao Zhou, Nanyu Zhao, Haobai Fei, Xiaolin Ma, Ge Shi, John Dodson, Jialong Hao, Kefu Yu, Gangjian Wei, Ya‐Nan Yang, Zhangdong Jin, Weijian Zhou
Abstract
Significance Reconstructing past extreme weather events, such as tropical cyclones and cold surges, using natural paleoclimate archives can lengthen the instrumental data and help us have a broader understanding of the range of weather variability not evident in instrumental record. However, the time resolution of current paleoarchives, from millennial to monthly at best, is usually too low to explore past weather events. Here we found that the Tridacna shells from South China Sea, western Pacific, have continuous daily growth bands, and several daily to hourly resolution biogeochemical proxy records were developed. Our results demonstrate that these records can record nearby tropical cyclones and cold surges, indicating that Tridacna shells have the potential to be an unprecedented ultra-high-resolution archive for paleoweather reconstructions.