Delta-X: AVIRIS-NG L2B Derived Fractional Cover, MRD, LA, USA, 2021
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.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"026:00"
]
|
| contactPoint |
{
"fn": "Earthdata Forum",
"@type": "vcard:Contact",
"hasEmail": "mailto:earthdata-support@nasa.gov"
}
|
| 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. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Data Information (PNG)",
"format": "PNG",
"mediaType": "image/png",
"downloadURL": "https://daac.ornl.gov/DELTAX/guides/DeltaX_L2B_AVIRIS-NG_FracCover_Fig1.png"
},
{
"@type": "dcat:Distribution",
"title": "Data Information (PDF)",
"format": "PDF",
"mediaType": "application/pdf",
"downloadURL": "https://data.ornldaac.earthdata.nasa.gov/public/deltax/DeltaX_L2B_AVIRIS-NG_FracCover/comp/DeltaX_L2B_AVIRIS-NG_FracCover.pdf"
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"downloadURL": "https://deltax.jpl.nasa.gov/"
},
{
"@type": "dcat:Distribution",
"title": "Data Information (HTML)",
"format": "HTML",
"mediaType": "text/html",
"downloadURL": "https://doi.org/10.3334/ORNLDAAC/2407"
},
{
"@type": "dcat:Distribution",
"title": "Data Information (Unknown Format)",
"format": "BIN",
"mediaType": "application/octet-stream",
"downloadURL": "https://search.earthdata.nasa.gov/search?q=DeltaX_L2B_AVIRIS-NG_FracCover_2407&ac=true"
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]
|
| identifier | 10.3334/ORNLDAAC/2407 |
| keyword |
[
"earth-science-vegetation-biosphere-vegetation-fraction"
]
|
| landingPage | https://search.earthdata.nasa.gov/search?q=DeltaX_L2B_AVIRIS-NG_FracCover_2407&ac=true |
| modified | 2026-02-17 |
| programCode |
[
"026:000"
]
|
| publisher |
{
"name": "ORNL_DAAC",
"@type": "org:Organization"
}
|
| spatial |
"[[{"WestBoundingCoordinate":-91.5907,"NorthBoundingCoordinate":29.851,"EastBoundingCoordinate":-89.6761,"SouthBoundingCoordinate":29.0546}],"CARTESIAN"]"
|
| temporal | 2021-04-01/2021-04-01 |
| theme |
[
"Earth Science"
]
|
| title | Delta-X: AVIRIS-NG L2B Derived Fractional Cover, MRD, LA, USA, 2021 |
