ɪn ˈiːstɚn saɪbˈiəɹɪə, wˌɛɹ ˈɔːfeɪz ɑːɹ nˈoʊn æz nˈeɪldz,  tˈɛn,zˈiəɹoʊzˈiəɹoʊ zˈiəɹoʊ ˈɔːfeɪz wɪð ɐ kjˈuːmjʊlətˌɪv ˈɛɹiə ʌv tˈɪldə fˈɪfti,zˈiəɹoʊzˈiəɹoʊ zˈiəɹoʊ kˌeɪˈɛm tˈuː kəntˈeɪnɪŋ θˈɜːɾi kˌeɪˈɛm θɹˈiː ʌv wˈɔːɾɚ hɐvbɪn dˈɑːkjuːməntᵻd ɪn tˈuː θˈaʊzənd fˈɪftiːn.
In eastern Siberia, where aufeis are known as naleds,  10,000 aufeis with a cumulative area of ~ 50,000 km2 containing 30 km3 of water have been documented in 2015.