ˈɔːfeɪz ɐkjˈuːmjʊlˌeɪts dˈʊɹɹɪŋ wˈɪntɚɹ ɐlˈɔŋ stɹˈiːm ænd ɹˈɪvɚ vˈælɪz ɪn ˈɑːɹktɪk ænd sʌbˈɑːɹktɪk ɛnvˈaɪɹənmənts.
Aufeis accumulates during winter along stream and river valleys in arctic and subarctic environments.