Figure S1. Triangle elements for calculations of the area, water volume,
salt, 18O and 228Ra inventories in
Laizhou Bay. The parameters of each triangle node are listed in Table
S4.
Table S1. The location, water depth, salinity, 228Ra
activities, δ2H and δ18O values and
nutrient concentrations in seawater of Laizhou Bay in July 2017.