æz ðɪ əbzˈɜːvd ˈaɪsətˌoʊp vˌɛɹɪˈeɪʃənz ɑːɹ sˈɪmɪlɚɹ ɪn ʃˈeɪp tə ðə tˈɛmpɹɪtʃɚ vˌɛɹɪˈeɪʃənz ɹᵻkˈoːɹdᵻd fɚðə pˈæst fˈoːɹhˈʌndɹɪd twˈɛnti kˈaɪ æt vˈɑːstɑːk stˈeɪʃən, ðə fˈɪɡjɚ ʃˈoʊn ɔnðə ɹˈaɪt ɐlˈaɪnz ðə vˈæljuːz ʌv dˈɛltə ˈeɪtiːn ˈoʊ ɹˈaɪt skˈeɪl wɪððə ɹᵻpˈoːɹɾᵻd tˈɛmpɹɪtʃɚ vˌɛɹɪˈeɪʃənz fɹʌmðə vˈɑːstɑːk ˈaɪs kˈoːɹ lˈɛft skˈeɪl, fˈɑːloʊɪŋ pətˈiː ˈɛt ˈæl. nˈaɪntiːnhˈʌndɹɪd nˈaɪnti nˈaɪn.
As the observed isotope variations are similar in shape to the temperature variations recorded for the past 420 ky at Vostok Station, the figure shown on the right aligns the values of δ18O (right scale) with the reported temperature variations from the Vostok ice core  (left scale), following Petit et al. (1999).