Freezing Rivers:Hardening of the Arteries

By

Samuel S. Demientieff

Photos courtesy of:

• CRREL River Ice guide and Glossaryhttp://www.crrel.usace.army.mil/ierd/ice_guide/iceguide.htm#desc1

• Ice Breakup Reconnaissance in Alaskahttp://aprfc.arh.noaa.gov/resources/docs/brkup.html

• UAF Alaska Archival Film Project - AAF-10 -Old Minto, 1952-1957

• Bank Ice

• New Ice

• Glass Ice

Frazil or Slush Ice

Frazil Pans

Anchor Ice

Anchor Ice - River

Anchor Ice

Anchor Ice

Anchor Ice

Border or Bank Ice

Sheet Ice Cover

Candled or Honeycombed Ice

Freezeup Jam

Breakup Jam

Shear Walls (after jam)