Data · collection · 2024
OCO-2 Level 1B calibrated, geolocated science spectra V11.2 (OCO2_L1B_Science)
Listed in NASA Earthdata CMR
Version 11.2 is the current version of the data set.
Description
Older versions will no longer be available and are superseded by Version 11.2. The Orbiting Carbon Observatory is the first NASA mission designed to collect space-based measurements of atmospheric carbon dioxide with the precision, resolution, and coverage needed to characterize the processes controlling its buildup in the atmosphere.
The OCO-2 project uses the LEOStar-2 spacecraft that carries a single instrument. It incorporates three high-resolution spectrometers that make coincident measurements of reflected sunlight in the near-infrared CO2 near 1.61 and 2.06 micrometers and in molecular oxygen (O2) A-Band at 0.76 micrometers. The three spectrometers have different characteristics and are calibrated independently.
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Their raw data numbers (DN) are delivered correlated in time to the Level 1B process as Level 1A products. Each band has 1016 spectral elements, although some are masked out in the L2 retrieval.This product is the output from the Level 1B process. It converts the raw instrument data numbers into calibrated radiances.
This conversion is based upon files of instrument characteristics and algorithm parameters that may vary over time. In addition to calibrated radiances, the Level 1B output products have geolocation information recorded for each measurement for use in higher-level processes.
Links
Get the data
- Access the data via the OPeNDAP protocol. cmr.earthdata.nasa.gov/virtual-directory/collections/C2913032028-GES_DISC ↗
metadata API · download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C2913032028-GES_DISC ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
Where it is published
- disc.gsfc.nasa.gov /datacollection/OCO2_L1B_Science_11.2.html ↗
Access the dataset landing page from the GES DISC website.
landing page · from NASA CMR
Documentation and papers
- Data Quality document docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO2_L2_DQ_Statement_v11.2.pdf ↗
documentation · from NASA CMR
- Subset recipe using OPeNDAP disc.gsfc.nasa.gov/information/howto?title=How+to+download+a+spatial+and+variable… ↗
documentation · from NASA CMR
- docserver.gesdisc.eosdis.nasa.gov /public/project/OCO/SDOS_SIS_L1b.V7.pdf ↗
Level 1B Software Interface Specification containing description of all data objects in data files
documentation · from NASA CMR
- Publications from the Science Team ocov2.jpl.nasa.gov/science/publications ↗
documentation · from NASA CMR
- OCO-2 Data Gaps disc.gsfc.nasa.gov/information/documents?title=OCO+Known+Data+Issues ↗
documentation · from NASA CMR
- OCO-2 Documentation docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO-2_Documents.pdf ↗
documentation · from NASA CMR
- Level 1B Algorithm Theoretical Basis (ATBD) docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO_L1B_ATBD.pdf ↗
documentation · from NASA CMR
- README document. docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/README.OCO2.pdf ↗
documentation · from NASA CMR
- OCO-2 Project Home Page ocov2.jpl.nasa.gov ↗
project · from NASA CMR
- docserver.gesdisc.eosdis.nasa.gov /public/project/OCO/OCO2_logo.jpg ↗
The image depicts the official logo of the NASA Orbiting Carbon Observatory-2 (OCO-2).
preview image · from NASA CMR
Catalogue records · 2
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2913032028-GES_DISC.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2913032028-GES_DISC.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Atmospheric Carbon Dioxide · Infrared Radiance · Orbiting Carbon Observatory - 2 · Orbiting Carbon Observatory-2
- Inferred from text
- Climate change science 71%
Provenance · 1 source records, 15 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2913032028-GES_DISC | 7 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3702 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (71%) |
| concepts[instrument].gcmd_instrument:oco-2 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/carbon-and-hydrocarbon-compounds/atmospheric-carbon-dioxide | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/infrared-wavelengths/infrared-radiance | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:oco-2 | 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 · NASA CMR | connector:nasa_cmr@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 |