Table 5.12 -- EDCS classifications whose label begins with H
| Label | Definition | Code |
| HAIL | <SOLID_PRECIPITATION> of either transparent or partly or completely opaque <PARTICLE>s of <ICE> (hailstones), usually spherical, conical, or irregular in form and of <<OUTSIDE_DIAMETER>> generally between 5 and 50 millimetres, that falls from a <CLOUD> either separately or agglomerated into irregular lumps; hail. | 490 |
| HALLWAY | An entrance-hall or passage serving as a <ROUTE> to various <ROOM>s in a <BUILDING>; a hallway or corridor. | 491 |
| HARBOUR | A <REGION> of a <WATER_BODY> providing <ANCHORAGE> and protection for <VESSEL>s; a harbour. | 492 |
| HARBOUR_COMPLEX | A <HARBOUR> including one or more <ANCHORAGE_COMPLEX>s; a harbour complex. | 493 |
| HARD_STANDING | An open <TRACT> with a prepared <SURFACE> of pavement or gravel used for parking or storing <VEHICLE>s, particularly <AIRCRAFT>; a hard standing. | 494 |
| HARDENED_AIRCRAFT_SHELTER | A reinforced <SHELTER> that is resistant to <MUNITION>s and is designed for the protection of <AIRCRAFT>; a hardened aircraft shelter. | 495 |
| HAYSTACK | A regular pile of hay built in the open air; a haystack. | 496 |
| HAZARD_MARKER | A <MARKER> placed near or on a <TERRAIN_SURFACE_REGION> or <TERRAIN_SURFACE_OBJECT> to identify it as a potential hazard. | 497 |
| HEALTH_OFFICE | A <BUILDING> used in the diagnosis and care of outpatients; a health office or clinic. | 498 |
| HEAT_RADIATOR | <EQUIPMENT> consisting of a <STORAGE_TANK> or compact array of <PIPE>s that: has a large surface <<AREA>>; is heated, usually by circulating steam or hot <WATER>; and gives off warmth by radiation and convection; a heat radiator. | 499 |
| HEATING_FACILITY | A <FACILITY> for the generation of thermal energy for heating purposes. | 500 |
| HEAVY_INDUSTRIAL_FACILITY | A <FACILITY> devoted to the processing of <MATERIAL> or the manufacture of goods (for example: steel, aluminum, glass, or <MOTOR_VEHICLE>s) that generally require significant <EQUIPMENT>, <MATERIAL>, and energy inputs; a heavy industrial facility. | 501 |
| HEDGEROW | A continuous growth of <SHRUB>s planted as a <FENCE>, a <BOUNDARY>, or a windbreak; a hedgerow. | 502 |
| HELICOPTER | An <AIRCRAFT> deriving both lift and propulsive power from horizontally revolving blades or rotors and capable of ascending and descending vertically; a helicopter. | 503 |
| HELICOPTER_LANDING_PAD | An improved <SITE> used for take-off and landing VTOL <AIRCRAFT> (for example: a <HELICOPTER>); a helicopter landing pad. | 504 |
| HELIPORT | An <AERODROME> or a defined <REGION> on a <STRUCTURE> intended to be used wholly or in part for the arrival, departure, or surface movement of <HELICOPTER>s; a heliport. | 505 |
| HIGH_CLOUD | A <CLOUD> of the genus cirrus, cirrocumulus, or cirrostratus. Also the top of a <CLOUD> of the genus cumulonimbus or, occasionally, altostratus; a high cloud. | 506 |
| HIGH_PRESSURE_CENTRE | The <LOCATION> of the centre of a <REGION> of high <<ATM_PRESSURE>> in the <ATMOSPHERE>. | 507 |
| HILL | A small, isolated, elevated portion of the <TERRAIN> that is smaller than a <MOUNTAIN>; a hill. | 508 |
| HISTORICAL_BUILT_UP_REGION | A <REGION> containing a concentration of historical <STRUCTURE>s within an enclosing <BUILT_UP_REGION>. | 509 |
| HOAR_FROST | A deposit of interlocking crystals of <ICE> (hoar crystals) formed by direct deposition on <OBJECT>s, usually those of small <<OUTSIDE_DIAMETER>> freely exposed to the <AIR>, such as branches, stems, and leaf edges of <PLANT>s; <WIRE>s; and <POLE_STRUCTURE>s; hoar-frost. | 510 |
| HOLDING_PATTERN_REGION | A delimited <REGION> within which <AIRCRAFT> follow a holding pattern while awaiting further clearance instructions. | 511 |
| HOP_FIELD | A <TRACT> covered by the systematic planting of hop vines; a hop field. | 512 |
| HOPPER | A top-loaded, funnel-shaped <STRUCTURE> for temporary holding of loose <MATERIAL> that will be dispensed from its bottom; a hopper. | 513 |
| HORSE | A solid-hoofed perissodactyl ungulate <MAMMAL> of the family Equidae, the members of which are characterized by having a short coat, a long mane, and a long tail; a horse. | 514 |
| HOSPITAL_BUILDING | A <BUILDING> used to provide inpatient medical, surgical, or psychiatric care and treatment for the sick or the injured; a hospital. | 515 |
| HOSTEL | A <BUILDING> used to provide supervised, inexpensive lodging for travellers, especially young travellers; a hostel. | 516 |
| HOTEL | A <BUILDING> used to provide lodging, and usually meals and other services, for travellers and other paying guests; a hotel. | 517 |
| HOUSE | A <BUILDING> serving as a <DWELLING> for one or more <HUMAN>s, especially for a family; a house. | 518 |
| HULK | A permanently moored <WATER_SURFACE_VESSEL>; a hulk. | 519 |
| HUMAN | A member of the <ANIMAL> species Homo sapiens; a human. | 520 |
| HUMMOCK | A <TRACT> of higher <<TERRAIN_ELEVATION >> than the <SWAMP>, <BOG>, or <MARSH> that surrounds it; a hummock. | 521 |
| HURRICANE | A warm core <TROPICAL_CYCLONE> with a maximum surface <<WIND_SPEED>> of 33 metres per second or greater in the North Atlantic, the Caribbean, the Gulf of Mexico, and in the Eastern North Pacific Ocean; a hurricane. | 522 |
| HUT | A small, simple, or crude <HOUSE> or <SHELTER>; a hut. | 523 |
| HYDROFOIL_VESSEL | A <WATER_SURFACE_VESSEL> supported on airfoil-like pontoons where the bulk of the hull remains above the <WATER_BODY_SURFACE> while in motion; a hydrofoil. | 524 |
| HYDROGRAPHIC_LOCK | A <LOCK_BASIN> with a pair or series of <LOCK_GATE>s used for raising or lowering <VESSEL>s as they pass from one level to another; a hydrographic lock. | 525 |
| HYDROGRAPHIC_SURVEY_CONTACT | An <UNDERWATER_OBJECT> detected during a hydrographic survey; a hydrographic survey contact. | 526 |
| HYDROGRAPHY | A <WATER_BODY> and its adjoining <SHORE>s; hydrography. | 527 |
| HYDROLOGY_OBJECT | A planetary <OBJECT> related to <WATER>; hydrology. | 528 |
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