Imaging · collection · 1994
LAI (Indirect): Light Wand - KSU (FIFE)
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.3334/ornldaac/43
The prairie is inherently variable and large numbers of samples are needed to obtain reliable estimates of the prairie agronomic characteristics.
Description
For the Indirect Leaf Area Index Obtained from the KSU Light Wand Study a limited number of destructive samples were supplemented by large numbers of rapid non-destructive estimates. For the non-destructive measurements the LI-COR Inc.
LAI-2000 Plant Canopy Analyzer (light-wand) was used. This instrument measures transmittance of the canopy in the blue region of the spectrum, at five different zenith angles. These measurements were inverted to provide estimates of leaf area index, and mean inclination angle of the leaves to the zenith.
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Verification studies conducted by LI-COR Inc. indicated that the LAI-2000 Canopy Analyzer measurements were generally within 15% of values obtained by destructive sampling and measurement with a leaf area meter. As a rough guess even the destructive measurements are accurate only to within about 25% of the true sample leaf area value. In the opinion of the study team, the non-destructive measurements with the LAI-2000 are as good as the destructive measurements, and provide a better estimate of the site mean, because many more non-destructive measurement can be made.
Links
Get the data
- Data set Landing Page DOI URL doi.org/10.3334/ornldaac/43 ↗
landing page · download · DOI / persistent id · from NASA CMR, data nasa gov
- ORNL DAAC Data Set Documentation data.ornldaac.earthdata.nasa.gov/public/fife/fife_sur_refl_lightwnd/comp/Light_Wand_KSU.pdf ↗
documentation · download · from NASA CMR, data nasa gov
- Data Set Documentation data.ornldaac.earthdata.nasa.gov/public/fife/fife_sur_refl_lightwnd/comp/lightwnd.tdf ↗
documentation · download · from NASA CMR, data nasa gov
- Data Set Documentation data.ornldaac.earthdata.nasa.gov/public/fife/fife_sur_refl_lightwnd/comp/lw_unl.doc ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2980090177-ORNL_CLOUD.iso19115 ↗
download · from data nasa gov
- Collection Bundle URL data.ornldaac.earthdata.nasa.gov/protected/bundle/fife_sur_refl_lightwnd_43.zip ↗
download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C2980090177-ORNL_CLOUD ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
- PNG daac.ornl.gov/graphics/browse/project/square/fife_logo_square.png ↗
download · preview image · from data nasa gov, NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/lai-indirect-light-wand-ksu-fife-404f0 ↗
landing page · from data nasa gov
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2980090177-ORNL_CLOUD.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=70c847b8-7deb-44cc-9ab7-335aba42c… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2980090177-ORNL_CLOUD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Canopy Transmittance · FIELD INVESTIGATION · Leaf Area Index (Lai) · LICOR PLANT CANOPY ANALYZER
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
Provenance · 2 source records, 18 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2980090177-ORNL_CLOUD | 15 d ago | JSON v1 |
| NASA Data Portal | 70c847b8-7deb-44cc-9ab7-335aba42c385 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[instrument].gcmd_instrument:licor-plant-canopy-analyzer | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biosphere/vegetation/canopy-transmittance | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biosphere/vegetation/leaf-characteristics/leaf-area-index-lai | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:field-investigation | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| updated_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |