Access PACE Data

Current Processing Versions

• OCI: Version 3 (Release notes)
• SPEXone: Version 4 (Release notes)
• HARP2: Version 4 (Release notes)
• PACE reprocessing history

Public PACE data release began on 11 April 2024. Reprocessing Version 3 is now available for OCI. Reprocessing Version 4 is now available for SPEXone and HARP2. These reprocessing versions include the latest calibration refinements for the three instruments, as well as various bug fixes and data format improvements.

Regarding OCI Version 3, refinement of geophysical products at Level-2 and Level-3 was performed in August 2025, with those derived products tagged as Version 3.1. In April 2026, a further refinement to OCI Level-2 and Level-3 ocean products was performed, with those derived products tagged as Version 3.2. The Level-1B and Level-1C products for OCI are still tagged as Version 3, but the internal version metadata will indicate Version 3.0.1.

Additional frequent updates and reprocessings to incorporate post-launch calibration knowledge, algorithm refinements, and additional data products should be expected.

PACE Data Resources

• An overview of PACE science data products
• A complete list of science data products, including maturity levels and the status of current and pending data availability for each product
• Information on working with PACE data from Help Hub
• OB.DAAC learning resources
• Learn what you should know about PACE data

Options for accessing PACE data

PACE data are accessible through several options described on the Ocean Biology (OB) DAAC Find Data and NASA Earthdata web sites.

Three primary options include:

• Earthdata Search OB.DAAC portal
• OB.DAAC Level 3 & 4 Browser (Note: Within the "Product Status" pulldown select "Provisional" or "Testing" to view data.)
• OB.DAAC File Search

The OB.DAAC Level 1 & 2 browser does not support access to PACE data.

PACE orbit lines, true color, and chlorophyll data are also viewable on Worldview.

Access by Maturity Level

Access to data varies with data maturity level. Level-1 data from OCI, HARP2, and SPEXone are classified as Standard or Provisional. The various suites Level-2 and Level-3 derived products are classified as Standard, Provisional, Diagnostic, and/or Test.

• Standard and Provisional Level-1 and -2 data are available through Earthdata Search and the OB.DAAC File Search. Standard and Provisional Level-3 data are also available via all three options. Note that only Standard and Provisional data are available through Earthdata Search.
• Test and Diagnostic Level-2 data are available through the OB.DAAC File Search. Test and Diagnostic Level-3 data are available through the OB.DAAC Level 3 & 4 Browser and File Search. Note that Test and Diagnostic data are not available through Earthdata Search.

More

Questions? Please post them to the Earthdata Forum.

Want to stay informed? Join the PACE Community of Practice and visit the PACE Web site to follow along with What's New on the front page.