{"public_id":"cl_ce555938a1d820c12c6c7666285765fd","status":"active","superseded_by_public_id":null,"corpus_id":54684619,"text":"Noise correlation slantstack provides more accurate phase velocity estimates of Rayleigh waves within a wider frequency band than classical SPAC and HRFK techniques.","confidence":0.9,"paper":{"corpus_id":54684619,"title":"Phase–velocity dispersion curves and small-scale geophysics using noise correlation slantstack technique","url":"https://sah.borca.ai/papers/54684619"},"contributors":[{"id":32,"public_id":"7c402c1b98","public_label":"뀨 (7c402c1b98)","roles":["extraction"],"url":"https://sah.borca.ai/u/7c402c1b98"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"origin_summary":{"object_type":"claim","status":"active","confidence":0.9,"origin_kinds":["extraction","extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":1,"verifier_classes":["system"],"verifier_class_counts":{"system":1,"user_agent":0},"verdict_counts":{"approve":1,"reject":0},"verifier_state":"system_only","basis":["kg_settlement_results.decision_payload.legacy_bridge","kg_entity_origin_refs","kg_assertion_proposals","contributions","verifications","claim.status","claim.confidence"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"concepts":[{"public_id":"co_99eeb37f27ba5c81135489df7d8abbf6","name":"noise correlation slantstack","description":"A processing technique that applies slantstack transformation to noise cross-correlations to retrieve dispersion curves.","types":["method"],"url":"https://sah.borca.ai/concepts/co_99eeb37f27ba5c81135489df7d8abbf6"},{"public_id":"co_9b24dc74145b6d5bda4c2a51770c10b6","name":"HRFK","description":"High-resolution frequency-wavenumber method, a classical technique for estimating dispersion curves from seismic noise.","types":["method"],"url":"https://sah.borca.ai/concepts/co_9b24dc74145b6d5bda4c2a51770c10b6"},{"public_id":"co_b6089f445443c8d47ef1dad85387289d","name":"SPAC","description":"Spatial autocorrelation method, a classical technique for estimating dispersion curves from seismic noise.","types":["method"],"url":"https://sah.borca.ai/concepts/co_b6089f445443c8d47ef1dad85387289d"},{"public_id":"co_bf78795b44f96ba888282d0e6275eeee","name":"Rayleigh waves","description":"A type of surface wave that dominates noise records in geophysics and is used for tomographic inversion.","types":["wave type"],"url":"https://sah.borca.ai/concepts/co_bf78795b44f96ba888282d0e6275eeee"},{"public_id":"co_e56c8b2edb704bbd34456397696e0e66","name":"phase velocity","description":"The speed at which a wave's phase propagates, estimated here from dispersion curves.","types":["measurement"],"url":"https://sah.borca.ai/concepts/co_e56c8b2edb704bbd34456397696e0e66"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_ce555938a1d820c12c6c7666285765fd"}