@prefix this: <https://w3id.org/sciencelive/np/RATzUuXp99cKkSbXG2Eu_G4mQFSY0VMc1Kar0iRCQN1kk> .
@prefix sub: <https://w3id.org/sciencelive/np/RATzUuXp99cKkSbXG2Eu_G4mQFSY0VMc1Kar0iRCQN1kk/> .
@prefix np: <http://www.nanopub.org/nschema#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix npx: <http://purl.org/nanopub/x/> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

sub:Head {
  this: a np:Nanopublication;
    np:hasAssertion sub:assertion;
    np:hasProvenance sub:provenance;
    np:hasPublicationInfo sub:pubinfo .
}

sub:assertion {
  sub:beni-biomass-gedi-forest-height-outcome a <https://w3id.org/sciencelive/o/terms/FORRT-Replication-Outcome>;
    <http://schema.org/endDate> "2026-10-03"^^xsd:date;
    <http://www.w3.org/2000/01/rdf-schema#label> "ESA BIOMASS forest height is lower than GEDI lidar canopy height in most Beni lowland forest, but not in low canopies";
    <https://w3id.org/sciencelive/o/terms/hasConclusionDescription> "Partially supported. Across Beni lowland forest, ESA BIOMASS forest height is lower than GEDI lidar canopy height on average (mean difference -3.0 m, 95 percent block-bootstrap interval -4.4 to -1.1 m) and in 78 percent of forest cells, so the claim holds for most of the forest. It does not hold for low canopies: where GEDI canopy height is lowest (median 10.4 m), BIOMASS is on average 2.1 m higher. BIOMASS compresses the height range: the fitted relation crosses the 1:1 line near 24 m of BIOMASS height. The two heights rank forests only moderately consistently. BIOMASS forest height in its first year is therefore usable for the EBV Ecosystem Vertical Profile only with a stated uncertainty of several metres.";
    <https://w3id.org/sciencelive/o/terms/hasConfidenceLevel> <https://w3id.org/sciencelive/o/terms/Moderate>;
    <https://w3id.org/sciencelive/o/terms/hasEvidenceDescription> """Comparison on 1900 forest cells (HEALPix depth 11, WorldCover tree cover at least 50 percent, at least 5 GEDI footprints, at most 5 percent burned in 2024). BIOMASS minus GEDI RH98: mean -3.03 m (95 percent spatial block-bootstrap interval -4.39 to -1.06 m), median -3.83 m, root-mean-square difference 7.18 m; BIOMASS lower in 77.7 percent of cells. Spearman rank correlation 0.58, Pearson 0.52. By thirds of GEDI height (medians 10.4, 19.5, 25.6 m): mean difference +2.1, -4.6, -6.6 m; BIOMASS lower in 48, 87, 97 percent of cells. Linear relation GEDI = 8.61 + 0.645 x BIOMASS, in-sample R2 0.27, cross-validated error 6.59 m (5-fold, 42 spatial blocks). Checks: night-time footprints only, mean difference -2.91 m and Spearman 0.58 (1832 cells); passes combined without the bias weight, mean difference -3.35 m and Spearman 0.59; disagreement against the BIOMASS bias index, Spearman 0.15. Results: results/summary.json.
Github repository: https://github.com/annefou/beni-canopy-height-ebv""";
    <https://w3id.org/sciencelive/o/terms/hasLimitationsDescription> "One region and one BIOMASS season (April to August 2026, Level-2A, processors 4.4.4 and 4.4.5 mixed during reprocessing); the products are early and may change. GEDI footprints span 2019 to 2025, so the two heights are years apart; cells burned in 2024 are excluded but later disturbance is not. GEDI RH98 is a lidar energy percentile over 25 m footprints and BIOMASS forest height is an upper-canopy stand height (H100) from radar at 200 m, so part of the difference is definitional; GEDI is itself a satellite product, and no open field-plot heights exist in the region for an independent check. BIOMASS also reports non-zero heights over grassland, and one of 18 products was excluded for reporting about 30 m over grassland. The breakdown by thirds of GEDI height is affected by regression to the mean. The forest focus group uses a 50 percent tree-cover threshold that is our choice.";
    <https://w3id.org/sciencelive/o/terms/hasOutcomeRepository> <https://doi.org/10.5281/zenodo.23120435>;
    <https://w3id.org/sciencelive/o/terms/hasValidationStatus> <https://w3id.org/sciencelive/o/terms/PartiallySupported>;
    <https://w3id.org/sciencelive/o/terms/isOutcomeOf> <https://w3id.org/sciencelive/np/RAcqXoAGeUnb9p0yakR1lohrkZA4wn2ksre3sXvXvQ548> .
}

sub:provenance {
  sub:assertion prov:wasAttributedTo <https://orcid.org/0000-0002-1784-2920> .
}

sub:pubinfo {
  <https://orcid.org/0000-0002-1784-2920> <http://xmlns.com/foaf/0.1/name> "Anne Fouilloux" .
  
  this: dc:created "2026-10-03T12:07:44.249Z"^^xsd:dateTime;
    dc:creator <https://orcid.org/0000-0002-1784-2920>;
    dc:license <https://creativecommons.org/licenses/by/4.0/>;
    npx:introduces sub:beni-biomass-gedi-forest-height-outcome;
    npx:wasCreatedAt <https://platform.sciencelive4all.org>;
    <http://www.w3.org/2000/01/rdf-schema#label> "ESA BIOMASS forest height is lower than GEDI lidar canopy height in most Beni lowland forest, but not in low canopies";
    <https://w3id.org/np/o/ntemplate/wasCreatedFromTemplate> <https://w3id.org/np/RA2zljn0Nw9SadppOyxZoh-_Rxosslrq-vYG-p9SttnJE> .
  
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    npx:hasSignatureTarget this:;
    npx:signedBy <https://orcid.org/0000-0002-1784-2920> .
}