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Description

This dataset provides estimates of fractional vegetation cover across the Atchafalaya and Terrebonne basins. Atmospheric correction was applied to a L2B BRDF-adjusted surface reflectance product from AVIRIS-NG imagery to produce L2 Hemispherical-Directional surface reflectance. A spectral library was compiled using in situ spectra in the USGS Spectral Library (v7) to represent green vegetation, non-photosynthetic vegetation, and soil. Linear spectral unmixing was then applied to mosaics of AVIRIS-NG reflectance using these spectra to estimate the fractional composition (scaled 0-1) of each endmember type for all terrestrial pixels. In addition to the AVIRIS-NG imagery and in situ field spectra, this analysis incorporated field images collected using a GoPro digital camera coincident with the AVIRIS-NG flight lines.

Product Summary

Platforms
FIELD SURVEYS ,
B-200
Instruments
CAMERA ,
AVIRIS-NG
Spatial Extent

N: 29.851 S: 29.0546 E: -89.6761 W: -91.5907

Location
LOUISIANA
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2021-04-01 to 2021-09-25
Data Partner
THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC) (ORNL_DAAC)
Concept ID
C3567238741-ORNL_CLOUD
Data State
COMPLETE
Number of Files/Granules
21
Processing Level
3
Published
Updated
Science Keywords
Vegetation Fraction

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Jensen, D. J., Solohin, E., Castañeda-Moya, E., Thompson, D. R., & Simard, M. (2025). Delta-X: AVIRIS-NG L2B Derived Fractional Cover, MRD, LA, USA, 2021 (Version 1). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/2407 Date Accessed: 2026-04-29

Documents

Filters
Title Year Author Topic
Delta-X: An airborne remote sensing framework to calibrate hydrodynamic Simard, Marc, Jones, Cathleen E., Twilley, Robert R., Castaneda-Moya, Edward, Fagherazzi, Sergio, Fichot, Cedric G., Lamb, Michael P., Passalacqua, Paola, Pavelsky, Tamlin M., Thompson, David R., Belhadj-aissa, Saoussen, Biswas, Pradipta, Christensen, Alexandra, Cortese, Luca, Denbina, Michael, Donatelli, Carmine, Flores, Sarah, Fontenot, Andy, Harringmeyer, Joshua P., Jensen, Daniel, Mallard, John, Nghiem, Justin, Oliver-Cabrera, Talib, Payandeh, Ali Reza, Rovai, Andre S., Solohin, Elena, Soloy, Antoine, Varugu, Bhuvan, Wang, Dongchen, Wright, Kyle, Zhang, Xiaohe, Zheng, Yang Hydroperiod, Inundation, Water Channels, Surface Water Processes/Measurements, Estuary, Water Depth, Coastal Bathymetry, Rivers/Stream, Wetlands, Deltas, Digital Elevation/Terrain Model (DEM), Coastal Elevation, Wetlands, Stage Height, Salt Marsh, Coastal, Biomass, Wetlands, Forests, Suspended Solids, Terrain Elevation, Primary Production, Vegetation Species, Plant Characteristics, Sedimentation, Accretion, Isotopic Age, Soil Horizons/Profile, Infrared Radiance, Sedimentation, Sediments, VIEWING GEOMETRY, Vegetation Cover, Geolocation, Visible Radiance, Sediment Transport, Sediment Transport, Attenuation/Transmission, Vegetation Fraction, Sea Level Changes, REFLECTED INFRARED, VISIBLE IMAGERY, Reflectance, Isotopes, Nutrients, Nutrient Cycling, Isotope Ratios, Sediment Transport, Sediment Transport, Nitrogen, Organic Matter, Soil Bulk Density, Carbon, Potassium, Nitrogen, Dominant Species, Discharge/Flow, Soil Rooting Depth, Salinity, Sediment Composition, Organic Matter, Solids, Surface Water Chemistry, Soil Organic Carbon (SOC), Sedimentation, Water Depth, Water Characteristics, Turbidity, Water Temperature, Chlorophyll Concentrations, Sedimentation
Investigating the contributions of herbaceous vegetation biomass to soil Jensen, Daniel, Solohin, Elena, Castaneda-Moya, Edward, Simard, Marc, Thompson, David R., Jones, Cathleen E., Christensen, Alexandra, Rovai, Andre, Fontenot, Andy, Twilley, Robert REFLECTED INFRARED, Deltas, VISIBLE IMAGERY, Wetlands, Reflectance, Salinity, Water Depth, Water Depth, Inundation, Surface Water Processes/Measurements, Sedimentation, Erosion/Sedimentation, Accretion, Soil Bulk Density, Organic Matter, Soil Organic Carbon (SOC), Sedimentation, Infrared Radiance, Estuary, Sediments, VIEWING GEOMETRY, Vegetation Cover, Geolocation, Visible Radiance, Biomass, Forests, Wetlands, Soil Rooting Depth, Vegetation Fraction, Primary Production
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