EO·Atlas
JPL GRACE and GRACE-FO Mascon RL06 Processing Chain
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Processing-chain anchor for JPL GRACE and GRACE-FO mascon RL06 data product provenance.
The JPL GRACE and GRACE-FO Mascon RL06 Processing Chain is operated by JPL (Jet Propulsion Laboratory, NASA) and distributed via PO.DAAC.[1] It processes Level-1B inter-satellite K-band ranging measurements from GRACE (2002-2017) and GRACE-FO (2018-present) into monthly gridded terrestrial water storage anomalies.
The algorithm solves a least-squares inversion for 4,551 equal-area 3-degree spherical cap mascons distributed across the Earth's surface.[2] Explicit spatial and temporal regularization constraints reduce noise at the Level-2 processing step, in contrast to the post-hoc empirical filtering applied to spherical harmonic solutions. An optional Coastal Resolution Improvement (CRI) filter is available to reduce signal leakage at land-ocean boundaries in coastal mascon cells.[3]
Outputs are monthly global terrestrial water storage (TWS) anomalies expressed as Equivalent Water Height (EWH, centimetres) on a 0.5-degree latitude/longitude grid (720x360 cells), together with gain factors for hydrology signal recovery.[4] Release history: RL05M (first mascon release), RL06M v01, RL06M v02 (2019), RL06.1Mv03, and the current release RL06.3Mv04 (2024, DOI 10.5067/TEMSC-3MJC6).[1]
Supply chain position
- [1]JPL GRACE and GRACE-FO Mascon RL06.3Mv04, PO.DAACagency doc2024-08-132026-06-11
- [2]Monthly Mass Grids - Global Mascons (JPL RL06.3_v04), GRACE Tellusagency doc-2026-06-11
- [3]JPL GRACE/GRACE-FO Mascon CRI Filtered RL06.3Mv04, NASA Earthdataagency doc-2026-06-11
- [4]GRACE Monthly Mass Grids Release 6.3 Version 4 - Global Mascons, Google Earth Enginecommunity-2026-06-11
How to cite this page
Plain text
JPL GRACE and GRACE-FO Mascon RL06 Processing Chain. EO-Atlas, SpectraWorks B.V. https://eo-atlas.org/standards/jpl-grace-mascon-rl06-processing-chain (CC BY 4.0)
BibTeX
@misc{eoatlas:standards:jpl-grace-mascon-rl06-processing-chain,
title = {JPL GRACE and GRACE-FO Mascon RL06 Processing Chain},
author = {{EO-Atlas}},
publisher = {SpectraWorks B.V.},
note = {CC BY 4.0},
url = {https://eo-atlas.org/standards/jpl-grace-mascon-rl06-processing-chain}
}