Pre-Delta-X Surface Water Sediment Concentrations in Mississippi River Delta

ORNL_CLOUD's dataset provides total suspended solids (TSS) concentrations from in situ water samples collected across the Atchafalaya and Terrebonne Basins in coastal Louisiana. Measurements were taken during the Pre-Delta-X campaign in Spring 2015 and Fall 2016 at sites spanning large and small channels to represent a range of hydrodynamic settings. These TSS data serve as inputs for hydrodynamic sediment transport models and for calibrating conversions of AVIRIS-NG spectral reflectance into TSS estimates.

Use Cases

• Calibrating remote sensing models that convert AVIRIS-NG spectral reflectance measurements into total suspended solids concentrations.
• Providing ground-truth inputs for hydrodynamic models simulating sediment transport in delta floodplains.
• Analyzing spatial and seasonal variations in sediment load across different channel sizes and hydrodynamic settings.
• Supporting water quality and geomorphic studies of coastal wetland and delta ecosystems.

Strengths

• Data collection targeted a representative range of suspended sediment concentrations from diverse hydrodynamic settings across the basins.
• Some sampling sites include paired in situ spectral reflectance measurements alongside TSS, enabling direct sensor calibration.
• Measurements cover two distinct seasons (Spring 2015 and Fall 2016), allowing for analysis of temporal variation.

Limitations

• Specific column names, row counts, and dataset size are not provided by any source, limiting detailed assessment of structure.
• Sources conflict on the last updated date, with one listing 2016-10-21 and others listing 2026-03-12, creating uncertainty about maintenance.
• The license is ambiguously noted as 'other-license-specified' or 'None', requiring further investigation for reuse.

Provenance

Source

ORNL_CLOUD

Collection Method

Water samples collected by bottle just beneath the surface, stored on ice, and filtered; TSS calculated from filter weight difference divided by sample volume.

Time Range

Spring 2015 to Fall 2016

Freshness

2026-03-12 22:33:42.462767

Geography

Atchafalaya and Terrebonne Basins within the Mississippi River Delta floodplain, coastal Louisiana, USA.