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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": [ { "@id": "https://w3id.org/sciencelive/o/terms/Moderate" } ], "https://w3id.org/sciencelive/o/terms/hasEvidenceDescription": [ { "@value": "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.\nGithub repository: https://github.com/annefou/beni-canopy-height-ebv" } ], "https://w3id.org/sciencelive/o/terms/hasLimitationsDescription": [ { "@value": "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": [ { "@id": "https://doi.org/10.5281/zenodo.23120435" } ], "https://w3id.org/sciencelive/o/terms/hasValidationStatus": [ { "@id": "https://w3id.org/sciencelive/o/terms/PartiallySupported" } ], "https://w3id.org/sciencelive/o/terms/isOutcomeOf": [ { "@id": "https://w3id.org/sciencelive/np/RAcqXoAGeUnb9p0yakR1lohrkZA4wn2ksre3sXvXvQ548" } ] } ] } ]