Imaging · collection · 2021
MODIS-based GPP, PAR, fC4, and SANIRv estimates from SLOPE for CONUS, 2000-2019
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.3334/ornldaac/1786
This dataset contains estimated gross primary productivity (GPP), photosynthetically active radiation (PAR), soil adjusted near infrared reflectance of vegetation (SANIRv), the fraction of C4 crops in vegetation (fC4), and their uncertainties for the conterminous United States (CONUS) from 2000 to 2019.
Description
The daily estimates are SatelLite Only Photosynthesis Estimation (SLOPE) products at 250-m resolution. There are three distinct features of the GPP estimation algorithm: (1) SLOPE couples machine learning models with MODIS atmosphere and land products to accurately estimate PAR, (2) SLOPE couples gap-filling and filtering algorithms with surface reflectance acquired by both Terra and Aqua MODIS satellites to derive a soil-adjusted NIRv (SANIRv) dataset, and (3) SLOPE couples a temporal pattern recognition approach with a long-term Crop Data Layer (CDL) product to predict dynamic C4 crop fraction.
PAR, SANIRv and C4 fraction are used to drive a parsimonious model with only two parameters to estimate GPP, along with a quantitative uncertainty, on a per-pixel and daily basis. The slope GPP product has an R2 = 0.84 and a root-mean-square error (RMSE) of 1.65 gC m-2 d-1.
Links
Get the data
- Data set Landing Page DOI URL doi.org/10.3334/ornldaac/1786 ↗
landing page · download · DOI / persistent id · from NASA CMR, data nasa gov
- ZIP data.ornldaac.earthdata.nasa.gov/public/cms/SLOPE_GPP_CONUS/comp/read_check.zip ↗
MODIS-based GPP, PAR, fC4, and SANIRv estimates from SLOPE for CONUS, 2000-2019: read_check.zip
documentation · download · from NASA CMR, data nasa gov
- ORNL DAAC Data Set Documentation data.ornldaac.earthdata.nasa.gov/public/cms/SLOPE_GPP_CONUS/comp/SLOPE_GPP_CONUS.pdf ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2266194621-ORNL_CLOUD.iso19115 ↗
download · from data nasa gov
- PNG daac.ornl.gov/CMS/guides/SLOPE_GPP_CONUS_Fig1.png ↗
download · preview image · from data nasa gov, NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C2266194621-ORNL_CLOUD ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/modis-based-gpp-par-fc4-and-sanirv-estimates-from-slop… ↗
landing page · from data nasa gov
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2266194621-ORNL_CLOUD.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=de956746-8c04-463a-8d7d-4217b2fe0… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2266194621-ORNL_CLOUD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Computer · Earth Observing System, Aqua · Earth Observing System, Terra (AM-1) · Gross Primary Production (Gpp) · MODELS · Moderate-Resolution Imaging Spectroradiometer · Photosynthetically Active Radiation · Plant Characteristics · Reflectance · Reflected Infrared
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Engineering · Life Sciences · Ocean & Atmospheric Science · Physics
- Inferred from text
- Crop and pasture production 73%
Provenance · 2 source records, 27 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2266194621-ORNL_CLOUD | 15 d ago | JSON v1 |
| NASA Data Portal | de956746-8c04-463a-8d7d-4217b2fe0efe | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3004 | enrichment · NASA CMR | taxonomy-embedding@1.0.0 | title+keywords+description (73%) |
| 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:engineering | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:life-sciences | 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:computer | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:modis | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biosphere/vegetation/photosynthetically-active-radiation | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biosphere/vegetation/plant-characteristics | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/soils/soil-productivity/gross-primary-production-gpp | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/surface-radiative-properties/reflectance | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/infrared-wavelengths/reflected-infrared | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:aqua | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:models | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:terra | 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 |