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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.
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6 resources available
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Original Metadata
ISO -
Resource 2
PNG -
Resource 3
PDF -
Resource 4
BIN -
Resource 5
HTML -
Resource 6
BIN
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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": "Original Metadata", "format": "ISO", "mediaType": "text/xml", "conformsTo": "http://www.isotc211.org/2005/gmi", "description": "The metadata's original source.", "downloadURL": "https://cmr.earthdata.nasa.gov/search/concepts/C3567238741-ORNL_CLOUD.iso19115" }, { "@type": "dcat:Distribution", "format": "PNG", "mediaType": "image/png", "downloadURL": "https://daac.ornl.gov/DELTAX/guides/DeltaX_L2B_AVIRIS-NG_FracCover_Fig1.png" }, { "@type": "dcat:Distribution", "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" }, { "@type": "dcat:Distribution", "format": "BIN", "mediaType": "application/octet-stream", "downloadURL": "https://deltax.jpl.nasa.gov/" }, { "@type": "dcat:Distribution", "format": "HTML", "mediaType": "text/html", "downloadURL": "https://doi.org/10.3334/ORNLDAAC/2407" }, { "@type": "dcat:Distribution", "format": "BIN", "mediaType": "application/octet-stream", "downloadURL": "https://search.earthdata.nasa.gov/search/granules?p=C3567238741-ORNL_CLOUD" } ] |
| identifier | 10.3334/ORNLDAAC/2407 |
| keyword |
[ "earth-science-vegetation-biosphere-vegetation-fraction" ] |
| license | https://www.usa.gov/government-works |
| modified | 2026-06-22 |
| programCode |
[ "026:000" ] |
| publisher |
{ "name": "ORNL_DAAC", "@type": "org:Organization" } |
| spatial |
"["CARTESIAN", [{"WestBoundingCoordinate": -91.5907, "NorthBoundingCoordinate": 29.851, "EastBoundingCoordinate": -89.6761, "SouthBoundingCoordinate": 29.0546}]]"
|
| temporal | 2021-04-01/2021-09-25 |
| theme |
[ "Earth Science" ] |
| title | Delta-X: AVIRIS-NG L2B Derived Fractional Cover, MRD, LA, USA, 2021 |
