https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/Head https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho http://www.nanopub.org/nschema#hasAssertion https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/assertion https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho http://www.nanopub.org/nschema#hasProvenance https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/provenance https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho http://www.nanopub.org/nschema#hasPublicationInfo https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/pubinfo https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://www.nanopub.org/nschema#Nanopublication https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/assertion https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/delouis-2022-sst-replication-study http://www.w3.org/1999/02/22-rdf-syntax-ns#type https://w3id.org/sciencelive/o/terms/FORRT-Replication-Study https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/delouis-2022-sst-replication-study http://www.w3.org/1999/02/22-rdf-syntax-ns#type https://w3id.org/sciencelive/o/terms/Reproduction-Replication-Study https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/delouis-2022-sst-replication-study http://www.w3.org/2000/01/rdf-schema#label Scattering-transform SST gap-filling on Copernicus Marine data (Delouis 2022 + IGARSS 2024 tutorial replication) https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/delouis-2022-sst-replication-study http://www.w3.org/2004/02/skos/core#related http://www.wikidata.org/entity/Q1507383 https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/delouis-2022-sst-replication-study http://www.w3.org/2004/02/skos/core#related http://www.wikidata.org/entity/Q199687 https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/delouis-2022-sst-replication-study http://www.w3.org/2004/02/skos/core#related http://www.wikidata.org/entity/Q5629401 https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/delouis-2022-sst-replication-study http://www.w3.org/2004/02/skos/core#related http://www.wikidata.org/entity/Q830457 https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/delouis-2022-sst-replication-study https://w3id.org/sciencelive/o/terms/hasDeviationDescription Differences from Delouis et al. 2022 (paper): (1) input data is Copernicus Marine SST in oceanography, not Planck dust polarisation in astrophysics; (2) the application is gap-filling clouds in remote-sensing imagery, not separating dust signal from instrument noise; (3) the resolution is nside=32 rather than the paper's nside=256, so the workflow runs on a CPU rather than requiring GPU. Differences from Jean-Marc Delouis's IGARSS 2024 tutorial notebook (which is the more direct source): we use the current PMW L3S product (0.25°) matched to the L4 product's grid; the original notebook may have used a different L3S variant. Same FOSCAT software — at the time of the experiment we used the annefou/FOSCAT@v0.1.0-cpu fork to enable CPU execution. The CPU patch (jmdelouis/FOSCAT#40) has since been merged upstream and is included in FOSCAT 2026.4.1 on PyPI (released 2026-04-24), so future runs of this workflow can use the standard PyPI release. https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/delouis-2022-sst-replication-study https://w3id.org/sciencelive/o/terms/hasDiscipline http://www.wikidata.org/entity/Q43518 https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/delouis-2022-sst-replication-study https://w3id.org/sciencelive/o/terms/hasMethodologyDescription We follow the workflow established by Jean-Marc Delouis in the IGARSS 2024 Pangeo tutorial (10.5281/zenodo.19793350). Inputs are Copernicus Marine L3S PMW SST (cmems_obs-sst_glo_phy_l3s_pmw_P1D-m, with cloud gaps) and L4 SST analysis (cmems_obs-sst_glo_phy-temp_nrt_P1D-m, gap-free reference) for 2026-04-01, both at 0.25° native resolution. Pipeline: (a) quality-filter L3S, regrid to L4 grid, build ocean mask from L4 NaN; (b) convert both to HEALPix at nside=32 via averaging; (c) fit a spherical-harmonic baseline (lmax=30) on observed pixels for an initial guess; (d) run FOSCAT scattering synthesis with scat_cov.funct(NORIENT=4, KERNELSZ=3) and L-BFGS over 300 epochs, using the L4 map's scattering coefficients as the statistical target and a cloud-only mask for gradient updates; (e) validate FOSCAT's filled values against L4 in cloudy regions via RMSE, comparing to the harmonic baseline. Inference runs on CPU (Apple M1 Pro, ~139 seconds). https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/delouis-2022-sst-replication-study https://w3id.org/sciencelive/o/terms/hasScopeDescription This study tests Delouis et al. 2022's generalisation claim on a different domain than the paper's Planck dust polarisation: the framework is applied to operational Copernicus Marine sea surface temperature observations to fill cloud gaps. We evaluate whether scattering-transform synthesis with a gap-free L4 reference product as the statistical target produces gap-filled L3S maps whose values approach the L4 ground truth in cloudy regions, and whether this outperforms a standard spherical-harmonic interpolation baseline. https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/delouis-2022-sst-replication-study https://w3id.org/sciencelive/o/terms/targetsClaim https://w3id.org/sciencelive/np/RAQPvE7Y4PNeL2oDwFh_uJgJbFHyBmWEvyZfO-RWy1pP8/delouis-2022-sst-cross-domain-claim https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/provenance https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/assertion http://www.w3.org/ns/prov#wasAttributedTo https://orcid.org/0000-0002-1784-2920 https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/pubinfo https://orcid.org/0000-0002-1784-2920 http://xmlns.com/foaf/0.1/name Anne Fouilloux https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho http://purl.org/dc/terms/created 2026-04-26T16:16:03.211Z https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho http://purl.org/dc/terms/creator https://orcid.org/0000-0002-1784-2920 https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho http://purl.org/dc/terms/license https://creativecommons.org/licenses/by/4.0/ https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho http://purl.org/nanopub/x/introduces https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/delouis-2022-sst-replication-study https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho http://purl.org/nanopub/x/wasCreatedAt https://platform.sciencelive4all.org https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho http://www.w3.org/2000/01/rdf-schema#label NP created using Declaring a replication study design according to FORRT https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho https://w3id.org/np/o/ntemplate/wasCreatedFromTemplate https://w3id.org/np/RAuLEjPp-4dTvPwMkfHggTto1CgjIftiGRAgHlyeEonjQ https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/sig http://purl.org/nanopub/x/hasAlgorithm RSA https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/sig http://purl.org/nanopub/x/hasPublicKey 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 https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/sig http://purl.org/nanopub/x/hasSignature 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 https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/sig http://purl.org/nanopub/x/hasSignatureTarget https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho https://w3id.org/sciencelive/np/RA45t1bdfz6Jr40G9dDqrWAF4i7-DT3HQNOSheRWjcuho/sig http://purl.org/nanopub/x/signedBy https://orcid.org/0000-0002-1784-2920