{"id": "card_floor_oceanography", "kind": "note", "title": "Oceanography — the salt sea in motion", "body": "Pressure rises with depth; seawater is 3.5 percent salt; density differences drive the thermohaline conveyor. Three pillars rest on earth science (the basins), chemistry (dissolved salts) and thermodynamics (currents). The sea covers 71 percent of the planet. The stick (stick_oceanography_the_salt_sea_in_motion) seals the gauge pressure at 100 m and the salinity fraction (tools/seed_oceanography.py).", "source": {"label": "Narrow Highway — oceanography", "url": "", "authority_tier": "engine_derived", "ref": "stick_oceanography_the_salt_sea_in_motion"}, "shelf": "codex", "box": "oceanography", "bands": ["floor", "oceanography", "one map"], "subject": "Oceanography — the salt sea in motion", "connections": [{"to_card_id": "card_oceanography_pressure", "relationship": "has_part", "evidence": "a pillar (The weight of water)"}, {"to_card_id": "card_oceanography_salinity", "relationship": "has_part", "evidence": "a pillar (The salt sea)"}, {"to_card_id": "card_oceanography_circulation", "relationship": "has_part", "evidence": "a pillar (Circulation)"}, {"to_card_id": "card_k_floor_of_discovery", "relationship": "part_of", "evidence": "the sea on the one map, rooted in the Floor of Discovery"}], "author": "engine", "created_at": 0.0, "updated_at": 0.0, "visibility": "public", "lifecycle_stage": "public", "volatility": "permanent", "surface": "secular", "generated": false, "call": "codex.oceanography", "facets": {"subject": ["floor", "one map"]}, "presentation": {"glyph": "•", "kind_label": "oceanography", "by": "Narrow Highway — oceanography", "authority": "engine_derived", "posted": "", "standing": ""}, "neighbors": [{"id": "card_oceanography_pressure", "title": "The weight of water — pressure with depth", "relationship": "has part", "why": "a pillar (The weight of water)", "href": "/card/card_oceanography_pressure", "resolved": true}, {"id": "card_oceanography_salinity", "title": "The salt sea — salinity and density", "relationship": "has part", "why": "a pillar (The salt sea)", "href": "/card/card_oceanography_salinity", "resolved": true}, {"id": "card_oceanography_circulation", "title": "Circulation — the thermohaline conveyor", "relationship": "has part", "why": "a pillar (Circulation)", "href": "/card/card_oceanography_circulation", "resolved": true}, {"id": "card_k_floor_of_discovery", "title": "The Floor of Discovery — one floor, and by its design the fear of God", "relationship": "part of", "why": "the sea on the one map, rooted in the Floor of Discovery", "href": "/card/card_k_floor_of_discovery", "resolved": true}], "house": {"door": "FIND", "kind": "card", "trail": "connections", "seal": "/card/card_floor_oceanography", "next_step": {"do": "follow a connection: what this card rests on, and what rests on it", "door": "FIND", "tool": "card_connections", "params": {"id": "card_floor_oceanography"}}, "ends": "a verdict or a card · the trail · a seal · one next step"}}