Oxygen isotopic composition (δ¹⁸O) of modern veinlets and snow and surface air temperatures of the winter period in the lower reaches of the Kolyma River

δ¹⁸О values and winter air temperatures from the Ambarchik creek and Pokhodsk in the north to the Omolon River mouth and Kolymsky village in the south of the region are represented. Similar publications containing the δ¹⁸О data of the lower Kolyma area are used.