Each yearly record of ice can reveal past temperatures and precipitation levels, the content of ancient atmospheres and even evidence for the timing and magnitude of distant storms, fires and volcanic eruptions, said White. (sciencedaily.com)
The model included swell waves which are generated by distant storms, and waves generated more locally, and the combination of these interacting with tidal currents. (sciencedaily.com)
Not only tides, but also waves from distant storms, may move the floating ice enough to crack pieces loose; this research used summertime solar - powered instruments so reports the correlation with distant N. Hemisphere winter storms; they comment that S.H. winter storms would too but were not recorded (no solar power for their instruments). (realclimate.org)