Geological Survey of Denmark and Greenland

Phosphate Recovery from Arsenic-Laden Groundwater Treatment Sludge

Abstract In this work, we investigated phosphate (P) recovery via calcium phosphate (CaP) precipitation from P-rich solutions produced synthetically and derived from arsenic (As)-laden groundwater treatment sludges. We systematically altered key variables in synthetic experiments...

Hidden subsurface suspended sediment export from Greenland's marine‐terminating glaciers

Abstract Runoff and calved ice volumes from the Greenland Ice Sheet are well constrained, but quantifying the associated suspended sediment flux remains challenging. Here we present near‐terminus observations from three glacierized fjords in southeast Greenland, combining full‐de...

From Trace Element Biogeochemistry to Critical Minerals Resourcing: Lessons Learned and Opportunities for Innovation

Abstract Critical minerals and materials, which are raw materials essential to modern technologies yet vulnerable to supply disruption, have emerged as a major focal point of research to diversify resources, advance processing technologies, and bolster supply chains. Many of thes...

Biological hotspot at a glacier ocean boundary in South Greenland

As marine-terminating glaciers retreat onto land, they change local hydrology and ecosystems. Direct observations of the glacier-ocean boundary are extremely rare because obtaining them is both technically challenging and potentially dangerous, leaving the physical and biological...

Anatomy and impact of a high Arctic atmospheric river driving extreme winter rain and snowfall

Abstract. Atmospheric rivers (ARs) transport concentrated fluxes of heat and moisture poleward, driving temperature and precipitation extremes. Yet, their vertical structure in the High Arctic – where small thermodynamic perturbations govern rain-snow partitioning and cryospheric...

Steady-StateCO2–Brine RelativePermeability and Hysteresis in Stenlille Sandstone

Abstract Creating a single, “global” relative permeability set for any storage site is challenging due to pronounced vertical heterogeneity and differing rock types across layers. In this work, six sets of steady-state (SS) relative permeability measurements were performed on two...