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Description

This dataset contains estimates of forest aboveground biomass (AGB) across the Atchafalaya and Terrebonne Basins, Louisiana, US. AGB was derived from AVIRIS-NG surface reflectance and UAVSAR products. L2B BRDF-adjusted surface reflectance was produced after applying atmospheric correction to L2 Hemispherical-Directional surface reflectance from NASA's AVIRIS-NG instrument. A polarimetric decomposition of the UAVSAR Level 1 (L1) Single Look Complex (SLC) stack product was used. To estimate AGB, local pixel reflectance spectra and radar scattering component pixels coincident with in situ forest AGB plot data from Summer 2015 and Fall 2021 were used to generate a machine learning-based regression model. This model was then scaled to the AVIRIS-NG and UAVSAR mosaic data, in accordance with vegetation type, to map forest AGB across the Atchafalaya and Terrebonne Basins. The data are provided in cloud optimized GeoTIFF format.

Product Summary

Platforms
B-200,
G-III
Instruments
AVIRIS-NG,
UAVSAR
Spatial Extent
N: 29.7069 S: 28.9907 E: -90.3607 W: -91.5934
Geographic Region
LOUISIANA
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2021-09-23 to 2021-09-24
Data Partner
THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC) (ORNL_DAAC)
Concept ID
c3556516287-ornl_cloud
Data State
COMPLETE
Processing Level
3
Published
Updated

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., Castañeda-Moya, E., Solohin, E., Denbina, M. W., Thompson, D. R., & Simard, M. (2025). Delta-X AVIRIS-NG and UAVSAR L3 Derived Forest Aboveground Biomass, MRD, LA (Version 1). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/2410 Date Accessed: 2025-06-23

Additional Citation

Jensen, D.J., E. Castañeda-Moya, E. Solohin, M.W. Denbina, D.R. Thompson, and M. Simard. 2025. Delta-X AVIRIS-NG and UAVSAR L3 Derived Forest Aboveground Biomass, MRD, LA. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2410

Documents

GENERAL DOCUMENTATION Delta-X AVIRIS-NG and UAVSAR L3 Derived Forest Aboveground Biomass, MRD, LA: DeltaX_AVIRIS-NG_UAVSAR_L3_AGB.pdf
USER'S GUIDE ORNL DAAC Data Set Documentation

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