Access PACE Data

Public PACE data release began on 11 April 2024.

This initial release of science data products (Version 1) provides access to Level-1 data from the OCI, HARP2, and SPEXone instruments and a limited suite of Level-2 and -3 derived products from OCI. These data are in a preliminary state and should be used with caution. Frequent updates and reprocessings to incorporate post-launch calibration knowledge, algorithm refinements, and additional data products should be expected.

PACE Data Resources

Release notes for Version 1
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

Options for accessing PACE data

PACE data are available 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.

Access by Maturity Level

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

Provisional Level-1 and -2 data are available through Earthdata Search and the OB.DAAC File Search. Provisional Level-3 data are available via all three options. Note that only 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.

11 April 2024 limited release - OCI

OCI derived products include:

The ocean apparent optical properties suite (OC_AOP): spectral remote sensing reflectances and uncertainties (Provisional), apparent visible wavelength (Provisional), aerosol optical thickness (Diagnostic), and aerosol angstrom exponent (Diagnostic). Note that these aerosol properties represent the atmospheric correction outputs for OC retrieval, and not the atmospheres discipline algorithms.
The ocean inherent optical properties suite (OC_IOP): spectral total absorption and backscattering coefficients and uncertainties (Provisional), spectral component absorption and backscattering coefficients (Provisional), and spectral diffuse attenuation coefficients (Provisional).
The ocean biogeochemical properties suite (OC_BGC): phytoplankton chlorophyll-a and uncertainties (Provisional), phytoplankton carbon and uncertainties (Test), and particulate organic carbon (Test).
The ocean photosynthetically available radiation (PAR) suite: daily and instantaneous planar and scalar PAR, both above and below the ocean surface (Test).

Note that uncertainties for selected products are only provided at Level-2.

Additional Derived Products

Additional derived products from OCI, HARP2, and SPEXone will be released after forthcoming evaluations by the algorithm providers and PACE Project.