Feldspar Sediment Accretion and Soil Carbon Measurements in Louisiana Deltas

Field data from 2019 to 2023 captures sediment deposition and soil properties across hydrogeomorphic zones in Louisiana's Wax Lake Delta and near CRMS sites. Measurements include elevation, sediment accretion, soil carbon content, bulk density, and organic matter at feldspar stations. The dataset was collected by the Delta-X project using RTK GPS for elevation and cryocore techniques for sediment analysis.

Use Cases

• Modeling sediment deposition rates across subtidal, intertidal, and supratidal elevation zones.
• Analyzing relationships between soil organic carbon content and hydrogeomorphic classification.
• Calibrating remote sensing estimates of marsh accretion with in-situ feldspar marker and cryocore data.
• Studying spatial variation in soil bulk density and organic matter across brackish, saline, and freshwater marsh types.

Strengths

• Data spans multiple field campaigns from Fall 2020 through Fall 2023, providing temporal coverage.
• Hydrogeomorphic zones are precisely defined using RTK GPS elevation measurements relative to NAVD88.
• Cryocore technique provides direct measurements of recent sediment deposition rates.
• Stations represent diverse environments: emergent marshes, ponds, and forested swamps.

Limitations

• Exact row count and column names are not provided by any source, limiting assessment of dataset scale.
• Conflicting last updated dates exist between platforms (2023-11-02 and 2026-03 13).
• Specific sample count per station or total number of feldspar stations is unknown.

Provenance

Source

Delta-X project, likely associated with ORNL_CLOUD.

Collection Method

Field measurements using RTK GPS for elevation and cryocore technique for sediment accretion; soil sample lab analysis.

Time Range

2019-2023

Freshness

2026-03-13 03:17:08.860423

Geography

Wax Lake Delta (Mike Island) and near Coastwide Reference Monitoring Systems (CRMS) sites, Louisiana, USA.