# Gas flow { "id": "S85053300", "title": "Gas flow", "url": "/topics/S85053300", "kind": "topic-directory", "aeo_cohort": "topic-directory", "provider": "lcsh", "revision": "db33196d535e104f", "catalogue_revision": "f050b5d4780b1289", "numeric_address": "10090319655232488964", "address_version": "morton4x16-v1", "coordinates": [ 0, 20, 18237, 53248 ], "answer_status": "Directory metadata; local answer requires separate source review", "truth_status": "Subject descriptor, not a factual answer or a demonstrated knowledge gap" } Here are entered works on the movement of a gas through closed or open channels or conduits. Works on the movement of underground gases from a natural source or engineered storage and barrier system upward toward the surface of the Earth are entered under [Gases--Migration.] Directory metadata is not a factual answer or evidence of a global knowledge gap. Source: https://id.loc.gov/authorities/subjects/sh85053300 No owner-reviewed local answer yet.