Array · collection · 2024
PACE OCI Level-3 Global Mapped Photosynthetically Available Radiation (PAR) Data, version 3.2
Listed in NASA Earthdata CMR
The Photosynthetically Available Radiation (PAR) data suite provides satellite-based estimates of the downwelling solar radiation in the 400–700 nm range that is available for photosynthesis at the ocean surface.
Description
These products quantify the daily or instantaneous amount of usable light energy, expressed in moles of photons m⁻² (commonly noted as “Einstein m⁻²”), and are widely used to estimate marine primary production, interpret phytoplankton bloom dynamics, provide context for optical and biogeochemical measurements,and support ecosystem models and education on light–biology interactions.
Geophysical variables in this suite include: - par — Daily photosynthetically available radiation (mol photons m⁻² d⁻¹)
Links
Get the data
Where it is published
- DOI doi.org/10.5067/pace/oci/l3m/par/3.2 ↗
DOI / persistent id · from NASA CMR
Documentation and papers
- PACE Homepage earthdata.nasa.gov/data/platforms/space-based-platforms/PACE ↗
documentation · from NASA CMR
- OCI Homepage earthdata.nasa.gov/data/instruments/OCI ↗
documentation · from NASA CMR
- nasa.github.io /oceandata-notebooks ↗
Satellite data procesing can be difficult. We're here to help! Visit the Oceandata Help Hub to navigate learning content for accessing visualizing, and analyzing data products.
documentation · from NASA CMR
- Data structure file for processing level L3 oceandata.sci.gsfc.nasa.gov/images/data/pace/txt/OCI_Level-3m_PAR_Data_Structure.txt ↗
documentation · from NASA CMR
- Sample data file for processing level L3 oceandata.sci.gsfc.nasa.gov/images/data/pace/sample_data/PACE_OCI.20250101.L3m.DAY.RRS.V3_… ↗
documentation · from NASA CMR
- oceandata.sci.gsfc.nasa.gov /files/atbd/legacy/atbd-obdaac-photosynthetically-available-rad… ↗
ATBD for Photosynthetically Available Radiation (PAR)
documentation · from NASA CMR
- Product Release Notes for PACE OCI, Version 3 oceandata.sci.gsfc.nasa.gov/files/reprocessing/PACE_OCI_V3_Release_Notes.pdf ↗
documentation · from NASA CMR
- Product Release Notes for PACE OCI, Version 2 oceandata.sci.gsfc.nasa.gov/files/reprocessing/PACE_Science_Data_V2_Release_Notes.pdf ↗
documentation · from NASA CMR
- Product Release Notes for PACE OCI, Version 1 oceandata.sci.gsfc.nasa.gov/files/reprocessing/PACE_Science_Data_V1_Release_Notes.pdf ↗
documentation · from NASA CMR
Catalogue records · 3
- oceandata.sci.gsfc.nasa.gov /opendap/PACE_OCI/L3SMI ↗
OPeNDAP Site for PACE OCI Standard Mapped Image (SMI) Product
metadata API · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C4124890413-OB_CLOUD.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C4124890413-OB_CLOUD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Ocean Color Instrument · Photosynthetically Active Radiation · Plankton, Aerosol, Cloud, ocean Ecosystem mission
- Inferred from text
- Atmospheric sciences 72%
Provenance · 1 source records, 13 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C4124890413-OB_CLOUD | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3701 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (72%) |
| concepts[instrument].gcmd_instrument:oci | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/ocean-optics/photosynthetically-active-radiation | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:pace | 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 |
| 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 |