Supplement to: Nedashkovsky, A P; Khvedynich, S V; Petrovsky, T V (2009): Alkalinity of sea ice in the high-latitudinal Arctic according to the surveys performed at North Pole Drifting Station 34 and characterization of the role of the Arctic ice in the CO2 exchange. Oceanology, 49(1), 55-63, https://doi.org/10.1134/S000143700901007X