PACE OCI V3.1 Reprocessing and New Product Release
The PACE Science Data Segment has initiated the V3.1 processing of all OCI products. Release notes describing the changes are posted here:
https://oceancolor.gsfc.nasa.gov/files/data/reprocessing/V3/PACE_Reprocessing_V3.x_notes.pdf
Currently, we have completed a full mission reprocessing of the V3 OCI Level-1B products to incorporate a minor correction to the existing collection (see notes), initiated the V3.1 near real time (NRT) processing of all OCI Level-2 and Level-3 products from 2 July 2025 forward, and stopped the V3.0 forward stream processing. A full mission V3.1 reprocessing of all OCI Level-2 and Level-3 products is expected within the coming week(s), assuming no major issue with the NRT processing arises. PACE OCI V3.1 products can now be acquired from NASA’s EarthDataSearch.
In addition, we have or will be adding a number of new product suites with this update, some of which are now beginning to appear in EarthDataSearch. These include:
- OCI aerosol products over land, ocean, and clouds from the UAA algorithm
- SPEXone aerosol products over land and ocean from the RemoTAP algorithm
- SPEXone aerosol and ocean color products from the MAPOL algorithm
- HARP2 cloud products from the GISS Polarimetric Cloud (GPC) algorithm
- HARP2 aerosol and ocean color products from the MAPOL algorithm
Further details are provided in the release notes above. Note that the calibrations for all three sensors are at Version 3 (Level-1B/C), so all Level-2 & Level-3 product collections derived from these V3 calibrations are tagged as Version 3.x to indicate that provenance.
Beyond these updates, we have an array of new products and algorithms at various stages of integration and test, including several phytoplankton community composition products, coastal water quality products, BRDF-corrected land surface reflectances, and atmospheric gases. The next one likely to be released is an atmospheric trace gas product that provides NO2 and O3 retrievals at native OCI spatial and temporal resolution.