A conceptual model of flow to the Waikoropupu Springs, NW Nelson, New Zealand, based on hydrometric and tracer (18O, Cl,3H and CFC) evidence
The Waikoropupu Springs, a large karst resurgence 4 km from the coast, are supplied by the Arthur Marble Aquifer (AMA) underlying the Takaka Valley, South Island, New Zealand.New evidence on the recharge sources in the catchment, combined with previous results, is used to establish a new recharge model for the AMA.Combined with the oxygen-18 mass b