Table 6.9 -- EDCS attributes whose label begins with E

Label Definition Attribute value type EQ label Code
ECOSYSTEM_TYPE The type of an ecosystem based on a combination of land cover, floristic properties, climate, and physiognomy. ENUMERATION   314
EDUCATIONAL_BUILDING_TYPE The type of an educational <BUILDING>. ENUMERATION   315
ELECTRON_DENSITY The number of electrons per unit <<VOLUME>>; the electron density. REAL VOLUMETRIC_ENTITY_DENSITY 316
ELECTRONIC_WATER_BODY_FLOOR-
_DEPTH 		The <<DEPTH_OF_WATER_BODY_FLOOR>> obtained by electronic depth measuring instruments. REAL LENGTH 317
ELEV_ELECTRICAL_CABLE_ICING-
_SAG 		The value of the maximum variation in the vertical clearance of an <ELEVATED_ELECTRICAL_CABLE> due to an accumulation of <ICE>; the elevated electrical cable icing sag. REAL LENGTH 318
ELEV_ELECTRICAL_CABLE-
_MINIMUM_CLEARANCE 		The minimum vertical clearance of an <ELEVATED_ELECTRICAL_CABLE> from the underlying <PLANETARY_SURFACE>. REAL LENGTH 319
ELEV_ELECTRICAL_CABLE_PYLON-
_SPACING 		The spacing distance between adjacent <PYLON>s along an <ELEVATED_ELECTRICAL_CABLE>. REAL LENGTH 320
ELEV_ELECTRICAL_CABLE_SAG The maximum vertical distance from the height of an <ELEVATED_ELECTRICAL_CABLE> at a connection to a <PYLON> to the lowest point of the <ELEVATED_ELECTRICAL_CABLE>; the elevated electrical cable sag. REAL LENGTH 321
ELEV_ELECTRICAL_CABLE-
_SEGMENT_COUNT 		The number of straight segments that may be used to approximate the catenary shape of an <ELEVATED_ELECTRICAL_CABLE> between adjacent <PYLON>s; the elevated electrical cable segment count. COUNT   322
ELEV_ELECTRICAL_CABLE_TYPE The type of suspension of an <ELEVATED_ELECTRICAL_CABLE>. ENUMERATION   323
ELEVATION_ACCURACY_STATEMENT A statement of the accuracy of an elevation value. ENUMERATION   324
ELEVATION_ANGLE The <<VECTOR_ELEV_ANGLE_LOCAL>> from the horizontal plane at the observer's location, to either a <LINE> passing through the observer, or a vector relative to the observer, or the direction from the observer to an <OBJECT> or <LOCATION>; the elevation angle. REAL PLANE_ANGLE 325
EM_BAND The scientifically-accepted designation for a range of <<FREQUENCY>>s within the electromagnetic spectrum; the electromagnetic band. ENUMERATION   326
EM_EVAPORATIVE_DUCT_HEIGHT The <<HEIGHT_AGL>> of the top of a <ELECTROMAGNETIC_REFRACTIVE_EVAPORATIVE_DUCT>. REAL LENGTH 327
EM_EVAPORATIVE_DUCT_INDEX The index of refraction for radio <<FREQUENCY>> propagation within an <ELECTROMAGNETIC_REFRACTIVE_EVAPORATIVE_DUCT>. REAL LENGTH 328
EM_EVAPORATIVE_DUCT_STRENGTH The degree of energy refraction caused by an <ELECTROMAGNETIC_REFRACTIVE_EVAPORATIVE_DUCT>; the electromagnetic evaporative duct strength. ENUMERATION   329
EM_POLARIZATION_TYPE When the vibrations of an electromagnetic radiation are confined to a single plane, the orientation of the plane of the electric field (E) as opposed to the magnetic field (M) as established by the <AERIAL> of the emitter or receiver; the electromagnetic polarization type. ENUMERATION   330
EM_PROPAGATION_CONDITION The type of condition causing variation in the propagation path of electromagnetic energy due to interaction of the emitted energy with the vertical density gradient of the <ATMOSPHERE>. ENUMERATION   331
EM_PULSE_DURATION The quantity of time (duration) of an electromagnetic pulse, as measured between the half-power points. REAL TIME 332
EM_PULSE_PEAK_POWER The peak power of an electromagnetic pulse. REAL POWER 333
EM_PULSE_TOTAL_ENERGY The total energy of an electromagnetic pulse. REAL ENERGY 334
EM_TRANSMISSION_LOSS The electromagnetic <<TRANSMISSION_LOSS>>. REAL FIELD_OR_POWER_LEVEL_DIFF 335
EMISSIVITY The ratio of the power emitted by an <OBJECT> at a given temperature to the power emitted if the body obeyed Planck's radiation law (black body emission); the emissivity. REAL PURE_NUMBER 336
EMITTANCE_AZIMUTH_GEODETIC The <<VECTOR_AZIMUTH_GEODETIC>> toward which light is emitted (the <DIRECTION> of the Poynting vector). REAL PLANE_ANGLE 337
EMITTANCE_AZIMUTH_LOCAL The <<VECTOR_AZIMUTH_LOCAL>> toward which light is emitted (the <DIRECTION> of the Poynting vector). REAL PLANE_ANGLE 338
EMITTANCE_AZIMUTH_MAGNETIC The <<VECTOR_AZIMUTH_MAGNETIC>> toward which light is emitted (the <DIRECTION> of the Poynting vector). REAL PLANE_ANGLE 339
EMITTANCE_ELEV_ANGLE-
_HORIZONTAL 		The <<VECTOR_ELEV_ANGLE_HORIZONTAL>> toward which light is emitted (the <DIRECTION> of the Poynting vector). REAL PLANE_ANGLE 340
EMITTANCE_ELEV_ANGLE_LOCAL The <<VECTOR_ELEV_ANGLE_LOCAL>> toward which light is emitted (the <DIRECTION> of the Poynting vector). REAL PLANE_ANGLE 341
EMITTED_DIFFUSE_LIGHT_SCALED-
_INTENSITY 		A number between 0 and 1 inclusive representing that linearly-scaled fractional light intensity which leaves the surface of an <OBJECT> in all directions with equal magnitude. Zero means minimum intensity and one means maximum intensity. REAL PURE_NUMBER 342
EMITTED_SPECULAR_LIGHT-
_SCALED_INTENSITY 		A number between 0 and 1 inclusive representing that linearly-scaled fractional light intensity which leaves the surface of an <OBJECT> in a particular direction. Zero means minimum intensity and one means maximum intensity. REAL PURE_NUMBER 343
ENCLOSURE_MAXIMUM_HEIGHT The maximum vertical distance from <FLOOR> to <ROOM_CEILING> of a <BUILDING> compartment (for example: a <ROOM> or a <FLOOR_CRAWL_SPACE>; the enclosure maximum height. REAL LENGTH 344
ENCLOSURE_MINIMUM_HEIGHT The minimum vertical distance from <FLOOR> to <ROOM_CEILING> of a <BUILDING> compartment (for example: a <ROOM> or a <FLOOR_CRAWL_SPACE>; the enclosure maximum height. REAL LENGTH 345
ENGINE_SMOKE_RATE The <<SMOKE_RATE_FRACTION>> of a motor/engine/propulsion <SYSTEM> in an <OBJECT>. REAL PURE_NUMBER 346
ENGINEER_TRENCH_TYPE The type of an <ENGINEER_TRENCH>. ENUMERATION   347
ENTRANCE_AND_OR_EXIT_COUNT The number of <STRUCTURE_ENTRANCE_AND_OR_EXIT>s of a <STRUCTURE>; the entrance and/or exit count. COUNT   348
ENTRANCE_COUNT The number of <STRUCTURE_ENTRANCE>s of a <STRUCTURE>; the entrance count. COUNT   349
EXISTENCE_CERTAINTY The certainty of existence of an <OBJECT>. ENUMERATION   350
EXISTENCE_STATUS The status or existance condition of an <OBJECT>. ENUMERATION   351
EXIT_COUNT The number of <STRUCTURE_EXIT>s of a <STRUCTURE>; the exit count. COUNT   352
EXPLOSIVE_MINE_DENSITY The areal density of <EXPLOSIVE_MINE>s within a <MINEFIELD>. REAL AREAL_ENTITY_DENSITY 353
EXPLOSIVE_MINE_TYPE The type of an <EXPLOSIVE_MINE>. ENUMERATION   354
EXTERIOR_LIGHTING_INTENSITY A number between 0 and 1 inclusive representing the linearly-scaled fractional intensity of the general external <LIGHTING> of an <OBJECT>. Zero means unlit and one means maximum intensity. REAL PURE_NUMBER 355
EXTERIOR_WALL_CONSTRUCTION-
_TYPE 		The type of <MATERIAL> and/or techniques used to construct an <EXTERIOR_WALL>. ENUMERATION   356
EXTERIOR_WALL_FORTIFICATION The <MATERIAL>s and/or techniques used to fortify an <EXTERIOR_WALL>. ENUMERATION   357
EXTERIOR_WALL_THICKNESS The <<THICKNESS>> of an <EXTERIOR_WALL>. REAL LENGTH 358
EXTERNAL_PAINT_SCHEME The applied external paint scheme of an <OBJECT>. ENUMERATION   359
EXTERNAL_WINDOW_COVERING The type of the external covering of a <WINDOW>. ENUMERATION   360
EXTINCTION_COEFFICIENT-
_ALTITUDE 		The altitude above a <PLANETARY_SURFACE> at which a given extinction coefficient value occurs. REAL GEOPOTENTIAL_ENERGY_LENGTH 361
EXTINCTION_COEFFICIENT_LOSS For radiation propagating through a medium, the fractional depletion of <<RADIANCE>> per unit path length; the extinction coefficient loss. REAL LINEAR_ENERGY_TRANSFER 362
EXTINCTION_COEFFICIENT-
_WAVELENGTH 		The electromagnetic <<WAVELENGTH>> for an extinction coefficient observation. REAL LENGTH 363
EXTRACTION_MINE_TYPE The type of an <EXTRACTION_MINE>. ENUMERATION   364

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