Array · collection · 2022
Sentinel-3B OLCI Level-3 Global Mapped Earth-observation Reduced Resolution (ERR) Remote-Sensing Reflectance (RRS) - Near Real-time (NRT) Data, version 2022.0
Listed in NASA Earthdata CMR
The Ocean Biology DAAC produces near real-time (NRT) products using the best-available combination of ancillary data from meteorological and ozone data.
Description
As such, the inputs and the calibration used are less than optimal. Near real-time products provide a snapshot of the data during a short time period within a single orbit.
The Remote Sensing Reflectance (RRS) suite provides the remote sensing reflectance at wavelength λ (nm)—the ratio of water-leaving radiance to downwelling irradiance just above the surface (units sr⁻¹). Variables are named by their band center (e.g., Rrs_412, Rrs_443). Rrs_λ is the foundational observable used to retrieve products such as chlor_a, Kd_490, IOPs, and to support algorithm development, validation, water-quality, and ecosystem applications.
Read the rest (1 more)
Users should review per-file quality flags (e.g., land, cloud, sun glint, high aerosol) and mission documentation—especially in optically complex coastal/inland waters. This activity was informed by the Satellite Needs Working Group (SNWG), an interagency effort of the U.S. Government dedicated to identifying and addressing Earth observation needs across U.S. civilian federal agencies. Geophysical variables in this suite include: - Rrs — Remote sensing reflectance (sr⁻¹)
Links
Get the data
- NASA's Ocean Color Web - Data Distribution Site oceandata.sci.gsfc.nasa.gov/directdataaccess/Level-3%20Mapped/S3B-OLCI ↗
download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C3407755332-OB_CLOUD ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
Documentation and papers
- 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
- Sentinel-3B Homepage earthdata.nasa.gov/data/platforms/space-based-platforms/Sentinel-3B ↗
documentation · from NASA CMR
- OLCI Homepage earthdata.nasa.gov/data/instruments/OLCI ↗
documentation · from NASA CMR
- oceancolor.gsfc.nasa.gov /files/atbd/atbd-obdaac-remote-sensing-reflectance.pdf ↗
Algorithm Theoretical Basis Document for Earth-observation Reduced Resolution (ERR) Remote-Sensing Reflectance (RRS) - Near Real-time (NRT)
documentation · from NASA CMR
- View the version history of this product. oceancolor.gsfc.nasa.gov/data/reprocessing ↗
documentation · from NASA CMR
Catalogue records · 3
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3407755332-OB_CLOUD.html ↗
catalogue entry · from NASA CMR
- oceandata.sci.gsfc.nasa.gov /opendap/S3BOLCI ↗
OPeNDAP Site for Sentinel-3B OLCI Standard Mapped Image (SMI) Product
metadata API · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3407755332-OB_CLOUD.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Ocean and Land Colour Imager · Reflectance · Sentinel-3B
- Inferred from text
- Satellite remote sensing 65%
Provenance · 1 source records, 13 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3407755332-OB_CLOUD | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:olci | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/ocean-optics/reflectance | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:remote-sensing | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (65%) |
| concepts[platform].gcmd_platform:sentinel-3b | 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 |