Seismic data reveal how water is accumulated and released by Himalayan groundwater reservoirs which are key for predicting future freshwater resources for a large part of South Asia.
A new technique using dissolved noble gas tracers sheds light on how water moves through an aquifer, with implications for water resources and their vulnerability to climate change.
Permafrost thawing associated with climate warming increases contributions to streamflow by deeper, cooler groundwater flow paths, which may result in lower summer stream temperatures.
A numerical model of groundwater-surface water systems shows how floodplain evaporation can reverse stream-groundwater flow and produce strong buoyancy changes associated with salinity.
Including diverse observations of exchange fluxes, tracer concentrations and residence times in groundwater model calibration results in more robust predictions than using only classical observations.
When the blue dye resazurin encounters living microorganisms, it transforms into fluorescent pink resorufin and helps scientists understand ecosystem respiration, but it has its limitations.
Radioactive isotope tracers can be used to determine the relationship between the ages of water that is stored in soil and bedrock, water in streams, and the water used by vegetation.
Using seismic waves, researchers study sediment layering near the Dead Sea to reveal how the area’s numerous sinkholes form.
A new study shows that mesquites employ hydraulic redistribution to move water between soil layers in the savannas of Santa Rita.
Lab-built streams reveal new insights into turbulence-driven exchange of dissolved substances between stream water and sediments below.