Table 6.12 -- EDCS attributes whose label begins with H

Label Definition Attribute value type EQ label Code
HAIL_SIZE The diameter of the largest <HAIL> stone observed; hail size. REAL LENGTH 425
HALLWAY_TYPE The type of a <HALLWAY>. ENUMERATION   426
HAPKE_AVERAGE_PARTICLE_PHASE-
_FUNCTION 		The average scattering phase function (P) of the <PARTICLE> of the medium as a function of the phase angle (g: the angle between the incident and reflected <DIRECTION>s) in the Hapke BRDF model. Defined as the sum (over type of <PARTICLE>) of the product of average geometric cross section, scattering efficiency, and phase function for a particular type of <PARTICLE>. REAL PURE_NUMBER 427
HAPKE_INTEG_SINGLE-
_SCATTERING_ALBEDO_PARAMETER 		The average single-scattering albedo parameter (w) in the Hapke BRDF model. Defined as the ratio of the scattering coefficient of the medium to the extinction coefficient of the medium. This quantity is wavelength-band integrated, and the particular band is specified separately. REAL PURE_NUMBER 428
HAPKE_OPPOSITION_EFFECT-
_AMPLITUDE_PARAMETER 		The measured parameter (B0) of the Hapke BRDF model which describes the probability that light incident upon an individual scattering <PARTICLE> will leave near the directly illuminated part of its <SURFACE>. REAL PURE_NUMBER 429
HAPKE_OPPOSITION_EFFECT-
_ANGULAR_WIDTH_PARAMETER 		The opposition effect term parameter (h) of the Hapke BRDF model. This parameter depends upon the spacing between <PARTICLE>s and is defined as the product of the number density of <PARTICLE>s, the average geometric cross section per <PARTICLE>, the extinction efficiency, and the diameter of an equivalent circle having the same projected <<AREA>> as the openings between <PARTICLE>s. REAL PURE_NUMBER 430
HAPKE_SINGLE_SCATTERING-
_ALBEDO_PARAMETER 		The average single-scattering albedo parameter (w) in the Hapke BRDF model, defined as the ratio of the scattering coefficient of the medium to the extinction coefficient of the medium. This quantity is spectral (a distribution function in <<WAVELENGTH>>), and is measured in terms of inverse <<WAVELENGTH>> bin size. REAL INV_LENGTH 431
HARBOUR_FACILITY_TYPE The type of operation and/or service supported by a <FACILITY> at a <HARBOUR>. ENUMERATION   432
HARBOUR_IDENTIFIER The textual identifier of a <HARBOUR>. STRING   433
HAZARD_MARKER_TYPE The type of a <HAZARD_MARKER>. ENUMERATION   434
HAZARD_SEVERITY The severity of a hazard. ENUMERATION   435
HAZARDOUS_GAS_TYPE The type of hazardous gas present within an <OBJECT>. ENUMERATION   436
HEAVY_ICE_ACCRETION-
_PROBABILITY 		The probability of heavy accretion of <ICE> on the <SURFACE>s of <MARINE_OBJECT>s. Such accretion can occur on <SURFACE>s on top of, over, or near a <WATER_BODY_SURFACE> when the ambient <<AIR_TEMPERATURE>> is equal to or below 271,15 kelvin (-2 degrees Celsius) and the <<WIND_SPEED>> is greater than or equal to 11,32 metres per second (22 knots). REAL PURE_NUMBER 437
HEIGHT The vertical distance from a <LOCATION> on the base (lowest point) of an <OBJECT> to a <LOCATION> on its top (highest point) that gives the greatest value of distance; the height. REAL LENGTH 438
HEIGHT_ABOVE_FLOOR The height measured vertically from a <FLOOR> to the <LOCATION> on the base (lowest point) of an <OBJECT> that gives the least value of height.. REAL LENGTH 439
HEIGHT_ABOVE_SURFACE_LEVEL The height of an <OBJECT> measured vertically from a <PLANETARY_SURFACE>. For an <OBJECT> on the <PLANETARY_SURFACE>, the height is measured from the lowest <LOCATION> on the base of the <OBJECT> (downhill side/downstream side) to the highest <LOCATION> on the <OBJECT> to give the greatest value of height. REAL LENGTH 440
HEIGHT_ABOVE_WATER_BODY_FLOOR The height of an <OBJECT> measured vertically from a <WATER_BODY_FLOOR> to the base (lowest portion) of the <OBJECT>. REAL LENGTH 441
HEIGHT_AGL The distance of an <OBJECT> above a <PLANETARY_SURFACE>; the height AGL. REAL LENGTH 442
HEIGHT_OF_RAILING The height of a railing. REAL LENGTH 443
HELIPAD_COUNT The number of <HELICOPTER_LANDING_PAD>s associated with an <OBJECT>; the helipad count. COUNT   444
HEMISPHERICAL_DIRECTIONAL-
_REFLECTIVITY 		The ratio, for a particular material <SURFACE> and unit solid angle about a particular reflection <DIRECTION>, of the reflected <<RADIANCE>> into that solid angle to the purely diffuse, total incident <<RADIANCE>> from the hemisphere above that <SURFACE>. This quantity is also defined as the integral over the incident hemisphere of the BRDF times the cosine of the angle between the surface normal and the incidence <DIRECTION> times the differential incident solid angle. It is a function of the <<REFLECTANCE_ZENITH_ANGLE_LOCAL>> and <<REFLECTANCE_AZIMUTH_LOCAL>> of the reflected <<RADIANCE>> and is spectral (a distribution function in <<WAVELENGTH>>); therefore the quantity is measured in terms of inverse <<WAVELENGTH>> bin size. REAL INV_LENGTH 445
HEMISPHERICAL_HEMISPHERICAL-
_REFLECTIVITY 		The ratio, for a particular material <SURFACE>, of the flux density reflected into the hemisphere above this <SURFACE> to the flux density incident upon it from all <DIRECTION>s within this hemisphere. This quantity is also defined as the ratio A/B, where A is the integral (over the incident hemisphere) of the incident <<RADIANCE>> times the cosine of the angle between the surface normal and the incident <DIRECTION> times the <<DIRECTIONAL_HEMISPHERICAL_REFLECTIVITY>> times the unit solid incident angle and B is the same integral without the <<DIRECTIONAL_HEMISPHERICAL_REFLECTIVITY>>. This quantity may also be known as the "total" or "bi-hemispherical" reflectivity and is spectral (a distribution function in <<WAVELENGTH>>); therefore the quantity is measured in terms of inverse <<WAVELENGTH>> bin size. REAL INV_LENGTH 446
HF_ACOUSTIC_SCTR_LAYER-
_BOTTOM_DEPTH 		The <<DEPTH>> of the lower (bottom) <BOUNDARY> of a high frequency scattering layer below the <WATER_BODY_SURFACE>. REAL LENGTH 447
HF_ACOUSTIC_SCTR_LAYER_TOP-
_DEPTH 		The <<DEPTH>> of the upper (top) <BOUNDARY> of a high frequency scattering layer below the <WATER_BODY_SURFACE>,. REAL LENGTH 448
HF_BOTTOM_LOSS_REGION-
_IDENTIFIER 		The numeric identifier of a high frequency bottom loss <REGION>. INDEX   449
HIGH_CLOUD_BASE_LEVEL The <<CLOUD_BASE_LEVEL>> of a <HIGH_CLOUD>. REAL LENGTH 450
HIGH_CLOUD_COVERAGE A number between 0 and 1 inclusive representing the linearly-scaled fraction of the sky covered by <HIGH_CLOUD>s; the high cloud coverage. Zero means no <HIGH_CLOUD>s are present and one means that the sky is completely covered by <HIGH_CLOUD>s. REAL PURE_NUMBER 451
HIGH_CLOUD_GENUS The genus of a <HIGH_CLOUD>. ENUMERATION   452
HIGH_CLOUD_TOP_LEVEL The <<CLOUD_TOP_LEVEL>> of a <HIGH_CLOUD>. REAL LENGTH 453
HIGH_CLOUD_TYPE_OBSERVED The type of observed <HIGH_CLOUD>s. ENUMERATION   454
HIGHEST_AIRSPACE_ALTITUDE The greatest <<HEIGHT_AGL>> of all <LOCATION>s in or on the boundary of an <AIRSPACE>; the highest airspace altitude. REAL LENGTH 455
HIGHEST_AIRSPACE_ALTITUDE-
_LIMIT 		The <<HIGHEST_AIRSPACE_ALTITUDE>> limit. REAL LENGTH 456
HIGHEST_ANNUAL_GROUND_WATER-
_LEVEL 		The highest annual mean level of ground <WATER>. REAL LENGTH 457
HIGHEST_ELEVATION The greatest elevation above a specified <SURFACE_DATUM> to any <LOCATION> associated with an <OBJECT>. REAL LENGTH 458
HINDUISM_DENOMINATIONAL_FAMILY The designation of a group of closely related Hindu religious traditions, often ones which were at one time part of a single movement but are now separate religious denominations; the Hinduism denominational family. ENUMERATION   459
HISTORICAL_CLOUD_FREE_LINE-
_OF_SIGHT_CLIMATOLOGY 		The historical (climatology) probability of a line of sight free of <CLOUD>s. REAL PURE_NUMBER 460
HORIZONTAL_CLEARANCE The horizontal distance available to pass a load that extends laterally beyond the wheels of a <VEHICLE>. REAL LENGTH 461
HORIZONTAL_CLEARANCE_LIMITED An indication that limited <<HORIZONTAL_CLEARANCE>> is present. BOOLEAN   462
HORIZONTAL_DATUM The horizontal <DATUM> to which <LOCATION>s are referenced. ENUMERATION   463
HORIZONTAL_LOAD_BEARING-
_CAPACITY 		The maximum distributed load per unit <<AREA>> that a horizontal <SURFACE> can support; the horizontal load bearing capacity. REAL SURFACE_DENSITY 464
HOSPITAL_BED_CAPACITY The number of beds within a <HOSPITAL_BUILDING> or <MEDICAL_FACILITY>. COUNT   465
HOUR_WITHIN_DAY The ordinal index of the hour within the day, starting with the number "0" at midnight. COUNT   466
HULK_TYPE The type of a <HULK>. ENUMERATION   467
HUMAN_FUNCTION The function for which a <HUMAN> has responsibility. ENUMERATION   468
HUMAN_ROLE The expected function of a <HUMAN> in a particular setting or situation; the human role. ENUMERATION   469
HYDROGRAPHIC_BARRIER_TYPE The type of <BARRIER> to hydrographic flow that an <OBJECT> presents. ENUMERATION   470
HYDROGRAPHIC_DEPTH The least <<DEPTH>> of any <LOCATION> on a hydrographic <OBJECT> that lies below the <WATER_BODY_SURFACE>. The <<DEPTH>> is in reference to a specified <SURFACE_DATUM>; the hydrographic depth. REAL LENGTH 471
HYDROGRAPHIC_DEPTH_CATEGORY A category describing the <<HYDROGRAPHIC_DEPTH>>. ENUMERATION   472
HYDROGRAPHIC_DEPTH_INFORMATION The accuracy or availability of <<HYDROGRAPHIC_DEPTH>> information for an <OBJECT>. ENUMERATION   473
HYDROGRAPHIC_DRYING_HEIGHT The elevation of a hydrographic <OBJECT> that tidal waters cover and uncover measured to the highest <LOCATION> on the <OBJECT> in reference to a specified <<SOUNDING_DATUM>>; the hydrographic drying height. REAL LENGTH 474
HYDROGRAPHIC_OBJECT_ORIGIN The origin of a hydrographic <OBJECT>. ENUMERATION   475
HYDROGRAPHIC_SURVEY_CONTACT-
_TYPE 		The type of a <HYDROGRAPHIC_SURVEY_CONTACT>. ENUMERATION   476
HYDROLOGIC_PERMANENCE The persistence of a <HYDROLOGY_OBJECT>. ENUMERATION   477
HYPSOGRAPHIC_PORTRAYAL_TYPE The type of a hypsographic portrayal <LINE>. ENUMERATION   478

separator bar

http://www.iso.ch/iso/en/ittf/PubliclyAvailableStandards/ISO_IEC_18025_Ed1.html