Acknowledgements
The authors are grateful to Zhouqing Xie, Senchao Lai and Benjamin
Gilfedder for assisting in the retrieval of historical data. J. C. G. M.
acknowledges financial support from the State Agency for Research of the
Spanish MCIU through the ”Center of Excellence Severo Ochoa” award to
the Instituto de Astrofísica de Andalucía (SEV-2017-0709) and the Ramon
y Cajal Program (RYC-2016-19570). A.S.-L. acknowledges financial support
from the European Research Council Executive Agency under the European
Union’s Horizon 2020 Research and Innovation programme (Project
’ERC-2016-COG 726349 CLIMAHAL’).