Description
Version 11r is the current version of the data set. Older versions will no longer be available and are superseded by Version 11r.
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. 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.This is the retrospective processing where the calibration data is estimated from the full timeseries of data (before, during, and after the measurements), and is expected to be of slightly higher quality.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| This dataset's landing page | HTML | Access the dataset landing page from the GES DISC website. | Open resource |
| View documentation related to this dataset | HTML | OCO-2 Documentation | Open resource |
| View documentation related to this dataset | HTML | OCO-2 Data Gaps | Open resource |
| View this dataset's how-to documentation | HTML | Subset recipe using OPeNDAP | Open resource |
| Get a related visualization | JPG | OCO2_L1B_Calibration_8r.jpeg | Open resource |
| View this dataset's user's guide | USER'S GUIDE | Open resource | |
| View documentation related to this dataset | Level 1B Algorithm Theoretical Basis (ATBD) | Open resource | |
| View this dataset's read me document | README document. | Open resource | |
| View this dataset's user's guide | Level 1B Software Interface Specification containing description of all data objects in data files | Open resource | |
| Downloadable software applications | HTML | This software (NASA NTR-49044) retrieves a set of atmospheric/surface/instrument parameters from a simultaneous fit to spectra from multiple absorption bands. The software uses an iterative, non-linear retrieval technique (optimal estimation). After the retrieval process has converged, the software performs an error analysis. The products of the software include all quantities needed to understand the information content of the measurement, its uncertainty, and its dependence on interfering atmospheric properties. Jet Propulsion Laboratory, California Institute of Technology. Copyright 2016 California Institute of Technology. U.S. Government sponsorship acknowledged. | Open resource |
| Download this dataset through a directory map | HTML | Access the data via HTTP. | Open resource |
| Use OPeNDAP to access the dataset's data | HTML | Access the data via the OPeNDAP protocol. | Open resource |
| The dataset's project home page | HTML | OCO-2 Project Home Page | Open resource |
| View documentation related to this dataset | HTML | Publications from the Science Team | Open resource |
| Download this dataset through Earthdata Search | HTML | Use the Earthdata Search to find and retrieve data sets across multiple data centers. | Open resource |