Pre-Delta-X Spectral Reflectance for Water Quality in Atchafalaya Basin

Thirty-five in situ spectral reflectance measurements were collected from surface water at 24 unique sites in Louisiana's Atchafalaya Basin during October 2016. This dataset, produced by ORNL_CLOUD for NASA's Pre-Delta-X campaign, provides ground-truthing data for the AVIRIS-NG airborne instrument. It directly supports the calibration of algorithms for retrieving total suspended solids (TSS) from remote sensing data.

Use Cases

• Calibrating airborne spectrometer (AVIRIS-NG) reflectance data using in-situ Rrs measurements.
• Validating retrieval algorithms for total suspended solids (TSS) concentration in coastal waters.
• Analyzing the relationship between spectral reflectance and sediment properties across diverse hydrodynamic settings.
• Ground-truthing satellite-derived water quality metrics for the Mississippi River Delta region.

Strengths

• Measurements coincide with total suspended solids (TSS) data at all 24 unique sites.
• Samples represent a range of sediment concentrations from 35 locations selected for environmental diversity.
• Data is explicitly designed for calibrating and validating NASA's AVIRIS-NG instrument algorithms.

Limitations

• Conflicting last update dates: one source states 2026-03-12, another states 2016-10 21.
• Specific column names and the total row count are not provided by any source.
• Temporal coverage is limited to a brief campaign in October 2016.

Provenance

Source

ORNL_CLOUD for NASA's Pre-Delta-X campaign.

Collection Method

Hand-held spectrometer measurements collected from a boat.

Time Range

2016-10-14 to 2016-10-21

Freshness

2026-03-12 22:33:58.514867

Geography

Atchafalaya Basin, southern coastal Louisiana, USA, within the Mississippi River Delta floodplain.