New research shows that typically, less than 10% of land-building alluvium reaches the Bird’s Foot Delta region, the southernmost reach of the river, where it meets the Gulf.
deltas
Posted inResearch Spotlights
New Global River Map Is the First to Include River Bifurcations and Canals
GRIT provides a much more detailed look at how rivers merge and split, which could enhance hydrological modeling, flood forecasting, and water management efforts.
Posted inEditors' Vox
Asian Megadeltas: Tackling Coastal Flooding Challenges
Integrating scientific insights into current actions is crucial for steering future research directions and underpinning informed management of coastal flooding in Asian deltas.
Posted inEditors' Highlights
Delta Degradation Leads to Exacerbated Greenhouse Gas Emissions
Seismic ship surveys and seabed elevation maps of the Yangtze subaqueous delta reveal how the reduction of sediment supply to the coastal ocean can trigger increased greenhouse gas emissions.
Posted inEditors' Highlights
Suivie de l’accumulation des métaux lourds dans le Delta du Nil
Les analyses de sédiments montrent que la réutilisation de l’eau non traitée et la construction de barrages entraînent l’augmentation des concentrations de métaux lourds dans le Delta du Nil, menaçant gravement les écosystèmes, l’agriculture et la santé humaine.
Posted inEditors' Highlights
Tracking Heavy Metal Accumulation in the Nile Delta
Sediment measurements show that flow alterations and discharges are driving increasing concentrations of multiple heavy metals in the Nile Delta, threatening ecosystems, agriculture, and human health.
Posted inEditors' Highlights
Tracking Subsidence on Deltas With Fiber-Optics
Fiberoptic strain meters capable of measuring micron-scale subsidence reveal a Holocene sediment package on the Mississippi Delta that is mostly stable.
Posted inNews
Estimating Land Loss in River Deltas
Some deltas are susceptible to land loss during sea level rise, whereas others gain land because of changes in the courses of rivers.
Posted inNews
Building a Better River Delta
People have been engineering river deltas for millennia, but new research identifies the optimal placement for diversions that benefit both local communities and the environment—and it might be close to a city.
Posted inEditors' Highlights
How Fast Did an Ancient Martian Delta Form?
Terrestrial meander migration rates are used to estimate a formation timescale of decades for Jezero delta on Mars.