Biological hotspot, morphology and meltwater pathways at a glacier ocean boundary in South Greenland

These files contain the measurement data underlying Fig. 3 and Fig. 5 for Qalerallit Imaat, South Greenland. Fig. 3 reports UAV and far-field profile observations of temperature, practical and absolute salinity, and turbidity at stations F1–F8 and R1–R4 (plus far-field overlays) from the March 2025 campaign. Fig. 5 reports the full per-point water-mass fractionation results for March and August, including glacial meltwater, meteoric water, and ambient water fractions with ensemble mean, median, and uncertainty statistics.