Data · collection · 2024
OCO-2 Level 1B calibrated, geolocated calibration spectra Retrospective Processing V11.2r (OCO2_L1B_Calibration)
Listed in NASA Earthdata CMR
Version 11.2r is the current version of the data set.
Description
Older versions will no longer be available and are superseded by Version 11.2r. The Orbiting Carbon Observatory is the first NASA missiondesigned to collect space-based measurements of atmospheric carbon dioxidewith the precision, resolution, and coverage needed to characterize theprocesses 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 ofreflected sunlight in the near-infrared CO2 near 1.61 and 2.06 micrometers and inmolecular 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 tothe Level 1B process as Level 1A products. Each band has 1016 spectralelements, although some are masked out in the L2 retrieval.This L1B product results from calibration mode measurements (e.g., Lunar,Solar, Dark observations), and thus it differs from the OCO2_L1B_Science(L1bSc) product. The differences in the product formats are only in the geolocation information provided.
Whereas the L1bSc products report geolocation data for each sounding, calibration products report the directionof the boresight vector.
Links
Get the data
- Access the data via the OPeNDAP protocol. cmr.earthdata.nasa.gov/virtual-directory/collections/C3090453484-GES_DISC ↗
metadata API · download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C3090453484-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_Calibration_11.2r.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/C3090453484-GES_DISC.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3090453484-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 70%
Provenance · 1 source records, 15 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3090453484-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 (70%) |
| 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 |