Glacier ice Impurity and chemical concentrations in Gulkana Glacier, Alaska (2023)

This dataset has the following contents.
1.The amount of impurities, organic matter, and mineral were measured by the following method. After the samples were dried (60 degreeC, 24-48 hours)(EO-450V, ETTAS, Japan) and weighed, they were combusted for 5hour at 500 degreeC in an electric furnace(SSTR-13R, ISUZU, Japan). After weighed, they were recombusted for 1hour at 1000 degreeC.
2.Major chemical solute concentrations were measured using an ion chromatography system (ICS-1100, Thermofisher, USA). For anion analysis, we used guard and separator columns (Ion Pac AG12 A and AS12 A, Thermo-fisher, USA) with an eluent of 2.7 mM Na2CO3 and 0.3 mM NaHCO3, the flow rate of which was set at 1.5 mL min-1. For cation analysis, we used guard and separator columns (Ion Pac CG12 A and CS12 A, Thermo-fisher, USA) with an eluent of 20 mM methanesulfonic acid as an eluent with a flow rate of 1.0 mL min-1.
3.Pigment concentration were measured using a high-performance liquid chromatography (HPLC) (SHIMADZU)