What the species is and where it came from
Ice shove is not a species. It is a natural phenomenon: a surge of ice from ocean or large lake onto shore. It occurs on Arctic coasts and mid-latitude lakes. It is also called landfast ice, ivu, ice surge, or ice push.
How it works, in terms someone would actually use
Ice shoves surge ice from oceans or large lakes onto shore. Wind, temperature shifts, water level changes, low-pressure systems, and open-water days drive them. They pile ice up to 12 m high.
What it gets right
Ice shoves correctly integrate physical forces—wind, pressure, thermal expansion—with ecological function. They sustain ringed seal breathing holes where no other ice type does. They anchor Iñupiat language and practice.
What it does not
Ice shoves do not occur year-round. They do not form without wind, temperature fluctuation, or open water. They do not support marine mammals that rely on drifting ice pack openings.
What it changed
Ice shoves shape sediment dynamics in coastal sea ice systems. They alter access for human travel and hunting. They modulate infrastructure risk in Arctic communities.
Who it is for, and who it is not
It is for Arctic residents, coastal engineers, sea ice ecologists, and Indigenous knowledge holders. It is not for inland freshwater biologists, tropical ecologists, or anyone expecting biological reproduction or taxonomy.
Is it worth your time
Yes—if you work on Arctic coasts, study ringed seals, or live where landfast ice meets shore. No—if you seek predictable seasonal events or biological novelty beyond adaptation to ice dynamics.
