What question did this study set out to answer?

To determine the empirical relationships between environmental drivers and river sediment yields in order to calculate global sediment discharge to the oceans.

April 1, 1998American Journal of Science

River sediment discharge to the oceans; present-day controls and global budgets

View Full Paper

Ask AI

Bookmark

To determine the empirical relationships between environmental drivers and river sediment yields in order to calculate global sediment discharge to the oceans.
Analyzed hydroclimatic, biological, and geomorphological data from global digital datasets alongside natural sediment flux literature across 60 major world river basins.
Constructed empirical regression models combining runoff intensity, basin slope, rock hardness indices, and rainfall variability across climate zones.
Sediment yields were best predicted by multiplicative models combining runoff intensity, basin slope, rock hardness, and rainfall variability, with higher erodibility observed in arid climates.
Global continental extrapolation estimated a total natural sediment discharge of approximately 16 Gigatons per year to the oceans, dominated by erosion from young orogenic belts.

Discussion

No takes yet. Share an insight, caveat, or question.

Implication

Global modeling analysis reveals river sediment discharge reaches 16 gigatons annually across major river basins, indicating young mountain belts drive most ocean sediment delivery.

Cite This Study

Ludwig et al. (1998) studied this question.

synapsesocial.com/papers/6a739ffe38bf1d836e1af3be https://doi.org/10.2475/ajs.298.4.265

View Full Paper

Ask AI

Bookmark

Implication

Global modeling analysis reveals river sediment discharge reaches 16 gigatons annually across major river basins, indicating young mountain belts drive most ocean sediment delivery.

River sediment discharge to the oceans; present-day controls and global budgets

Key Points

Discussion

Implication

Cite This Study

River sediment discharge to the oceans; present-day controls and global budgets

Key Points

Discussion

Implication

Cite This Study

Also Consider

Also Consider