Stable isotopes in snow on sea ice were observed in the Canadian Arctic Sea. Twenty-three snowpack and four new snow samples were collected along the length of expedition on foot from March to May in 2011. Stable isotopes in snow ranged from -25 to -35‰ in δ
18O and from 3 to 13‰ in d-excess, and the local meteoric water line (LMWL) is δD=8.4*δ
18O+18.7. There are no relationships between δ
18O in snow and surface air temperature in this study. Temporal variation of δ
18O in snow is influenced by the direction of moisture flux, low (high) δ
18O in snow exists when southwesterly (northerly or easterly) moisture flux dominants.
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