Average January (tmJ) paleotemperature of north-west Yakutia

Reconstructions of mean January temperatures (Tmean Jan., oC) were carried out by comparing the isotope composition of modern ice veinlets (δ18Oiv) and mean January temperatures (t °J) for the period of ice veinlet growth, i.e. for the last 60-100 years (Vasil'chuk 1991). As a result of this comparison, the equation is obtained: Tmean Jan.= 1.5 δ18Oiv (±3 °C)