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     Stable water isotopes (δ18O, δD, d-excess) in the surface water during 4 expeditions from spring to fall in 2019,...Water samples for stable isotopes were collected untreated in 10 mL HDPE vials, sealed tightly, stored in the dark at 4°C. Measurements were conducted at the laboratory facility...
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     Dissolved organic carbon (DOC) concentration in the surface water during 4 expeditions from spring to fall in 2019,...Water samples were filtered through 0.7 µm GF/F filter, and acidified with 25 µL Suprapur HCl (10 M) on the same day of sampling. DOC samples were stored and kept at 4°C in the...

