Delta-X AVIRIS-NG Surface Reflectance Mosaics for Coastal Louisiana

AVIRIS-NG airborne spectrometer data provides BRDF and sunglint-corrected surface spectral reflectance for the Mississippi River Delta. The dataset includes individual flight lines and ten mosaicked files covering four locations (Terre, Atcha, TerreEast, Bara) from Spring and Fall 2021 deployments. Collected for the Delta-X campaign, these images support modeling of delta landform changes under sea level rise.

Use Cases

• Analyzing seasonal changes in surface reflectance from Spring and Fall 2021 mosaics.
• Modeling soil erosion and accretion rates using corrected land pixel reflectance data.
• Masking water and cloud coverage in the mosaics using the provided binary mask files.
• Studying spectral signatures across four distinct delta basin locations (Terre, Atcha, TerreEast, Bara).
• Calibrating satellite-derived reflectance models with high-resolution airborne imagery.

Strengths

• Data includes advanced corrections for Bidirectional Reflectance Distribution Function (BRDF) and sunglint.
• Covers two distinct seasonal deployments over a 6-month period from March to September 2021.
• Provides ten mosaicked files aggregating flight lines by time period and location for easier analysis.
• Includes separate mask files identifying water and cloud pixels for the mosaic coverage.

Limitations

• Conflicting last updated dates: one source states 2026-03-13, another states 2021-09 25.
• Specific file size, row count, and detailed column/band information are not provided.
• Reflectance corrections were applied only to land pixels, not water.

Provenance

Source

Airborne Visible/Infrared Imaging Spectrometer - Next Generation (AVIRIS-NG) instrument, Delta-X campaign.

Collection Method

Airborne imaging flights acquired during Spring (2021-03-27 to 2021-04-06) and Fall (2021-08-18 to 2021-09-25) deployments.

Time Range

2021-03-27 to 2021-09-25

Freshness

2026-03-13 03:11:06.807013

Geography

Atchafalaya and Terrebonne basins of the Mississippi River Delta, coastal Louisiana, USA.