By adding support for spatially variable velocity fields and anisotropy, the CoSMoS simulation package can more accurately reproduce physical phenomena.
Time series analysis
Posted inEditors' Highlights
Analysis Reveals Patterns of Streamflow Generation Across USA
A new study transforms a classic conceptual framework into a quantitative classification of streamflow generation patterns.
Posted inResearch Spotlights
Tracing Water from River to Aquifer
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.
Posted inEditors' Highlights
New Isotope Model Predicts Denitrification from Riparian Zones
A new model quantifies the relative contributions of denitrification and other processes of nitrogen uptake, such as by plants, from groundwater in riparian areas around streams.
Posted inNews
Ancient Water Underlies Arid Egypt
A hidden trove of groundwater is left over from the last ice age.
Posted inResearch Spotlights
How Are Sediment Pulses Generated?
A new long-term flume experiment shows that bed load gravel travels downstream in recurring, 10-hour pulses even when water flow and sediment supply are constant.
Posted inResearch Spotlights
What Causes Ecological Shifts?
A new information-processing framework helps researchers tease out the factors driving ecological shifts over short timescales.
Posted inNews
Timothy A. Cohn (1957–2017)
Cohn emphasized the use of hydrologic science for the public good, to protect ordinary citizens from flood and pollution hazards and to reduce losses from natural disasters.
Posted inResearch Spotlights
Dam Discharge Events Alter Water Flow in an Estuary in Spain
Three-year observations suggest that increased sediment concentrations inhibit vertical transfer of momentum between water layers for more than 2 months after a high-discharge event.
Posted inResearch Spotlights
When Rivers and Tides Collide
Scientists review several decades of research on the complex freshwater reach where fluvial and tidal forces meet.