# Imaging systems in geophysics { "id": "S92006744", "title": "Imaging systems in geophysics", "url": "/topics/S92006744", "kind": "topic-directory", "aeo_cohort": "topic-directory", "provider": "lcsh", "revision": "d47bcf3e9409afe5", "catalogue_revision": "f050b5d4780b1289", "numeric_address": "5530495402337502726", "address_version": "morton4x16-v1", "coordinates": [ 0, 21, 61349, 24576 ], "answer_status": "Directory metadata; local answer requires separate source review", "truth_status": "Subject descriptor, not a factual answer or a demonstrated knowledge gap" } Directory metadata is not a factual answer or evidence of a global knowledge gap. Source: https://id.loc.gov/authorities/subjects/sh92006744 No owner-reviewed local answer yet.