Table 6.20 -- EDCS attributes whose label begins with P
| Label | Definition | Attribute value type | EQ label | Code |
| PARALLEL_LINE_COUNT | The total number of nominally parallel <LINE>s within an <OBJECT>; the parallel line count. | COUNT | 925 | |
| PARAPET_TYPE | The type of a <PARAPET>. | ENUMERATION | 926 | |
| PARTICLE_ENERGY | The energy of a charged <PARTICLE>. | REAL | ENERGY | 927 |
| PARTITIONED_WATER_BODY | An indication that a <WATER_BODY> is partitioned. | BOOLEAN | 928 | |
|
PASQUILL_ATMOSPHERE- _STABILITY_INDEX |
A method of categorizing the stability of a <REGION> of the <ATMOSPHERE>of the <EARTH> in terms of the horizontal surface <<WIND_SPEED>>, the amount of solar radiation (insolation), and the <<TOTAL_CLOUD_COVERAGE>>; the Pasquill atmosphere stability index. | ENUMERATION | 929 | |
| PASSAGE_BLOCKED | An indication that a passageway is blocked to the movement of <VEHICLE>s and/or <PERSONNEL>. | BOOLEAN | 930 | |
| PASSIVE_ACOUSTIC | An indication that an <OBJECT> generates acoustic energy not intended for the purposes of detection, localization, and/or identification; passive acoustic. | BOOLEAN | 931 | |
| PATH_COUNT | The number of independent, parallel paths (for example: Examples: a <RAILWAY_TRACK> or a <ROAD_LANE>) in both <DIRECTION>s within a <TERRAIN_TRANSPORTATION_ROUTE>; the path count. | COUNT | 932 | |
| PATROL_CRAFT_TYPE | The type of a <PATROL_CRAFT>. | ENUMERATION | 933 | |
| PEAK_TIDE_HEIGHT | The maximum or minimum height reached by a rising or falling <TIDE>, respectively, relative to a specified <SURFACE_DATUM>; peak tide height. | REAL | LENGTH | 934 |
| PEAK_TIDE_TIME | The <<TIME_QUANTITY>> since midnight at which a <<PEAK_TIDE_HEIGHT>> is reached. | REAL | TIME | 935 |
| PEAK_TIDE_TYPE | The type of a peak <TIDE>. | ENUMERATION | 936 | |
| PEDESTRIAN_CAPACITY | The number of pedestrians an <OBJECT> can accommodate. | COUNT | 937 | |
| PEDESTRIAN_RATE | The number of pedestrians per time unit formatted in a Basic Latin string. using structured text. The string contains a number, followed by a unit enclosed in parenthesis ( ( ) ), followed by a unit qualifier enclosed in square brackets ( [ ] ). Example: "100(persons)[per hour]". | CONSTRAINED_STRING | 938 | |
| PEDESTRIAN_TRAVERSABILITY | The traversability of an <OBJECT> by a pedestrian. | ENUMERATION | 939 | |
| PERIODIC_CYCLE_TIME | The <<TIME_QUANTITY>> within a cyclic repeating phenomenon, typically the intervals of light and eclipse of a <LIGHTHOUSE>; the periodic cycle time. | REAL | TIME | 940 |
| PERIODIC_END_DATE | The end of the active period for a seasonal <OBJECT> (for example: a <BUOY>). The value is formatted as specified by <<DATE_FORMAT>> or by <<DATE_TIME_FORMAT>>. | CONSTRAINED_STRING | 941 | |
| PERIODIC_RESTRICTION_END | The <<MONTH>> in which restrictions end on the use of an <OBJECT> due to climate or other limitations; the periodic restriction end. | ENUMERATION | 942 | |
| PERIODIC_RESTRICTION_START | The <<MONTH>> in which restrictions begin on the use of an <OBJECT> due to climate or other limitations; the periodic restriction start. | ENUMERATION | 943 | |
| PERIODIC_RESTRICTION_TYPE | The type of restriction on the use of an <OBJECT> due to climate or other limitations; the periodic restriction type. | ENUMERATION | 944 | |
| PERIODIC_START_DATE | The start of the active period for a seasonal <OBJECT> (for example: a <BUOY>). The value is formatted as specified by <<DATE_FORMAT>> or by <<DATE_TIME_FORMAT>>. | CONSTRAINED_STRING | 945 | |
| PERMANENT | An indication that an <OBJECT> is permanent (as opposed to temporary). | BOOLEAN | 946 | |
| PH | The logarithm of the reciprocal of hydrogen ion concentration in gram atoms per litre; the pH. | REAL | PURE_NUMBER | 947 |
| PHONG_AMBIENT_PARAMETER | The parameter of the Phong BRDF model which controls the contribution of reflected ambient (multi-scattered) light from a <SURFACE>. This quantity is wavelength-band integrated and the particular band is specified separately. | REAL | PURE_NUMBER | 948 |
| PHONG_DIFFUSE_PARAMETER | The parameter of the Phong BRDF model which controls the contribution of reflected diffuse (constant, omnidirectional) light from a <SURFACE>. This quantity is wavelength-band integrated and the particular band is specified separately. | REAL | PURE_NUMBER | 949 |
|
PHONG_INTEG_SHININESS- _PARAMETER |
The parameter of the Phong BRDF model which controls the width of the reflected specular lobe. This quantity is wavelength-band integrated and the particular band is specified separately. | REAL | PURE_NUMBER | 950 |
| PHONG_SPECULAR_PARAMETER | The parameter of the Phong BRDF model which controls the contribution of reflected specular (unidirectional) light from a <SURFACE>. This quantity is wavelength-band integrated and the particular band is specified separately. | REAL | PURE_NUMBER | 951 |
| PHYSICAL_OBSTRUCTION | An indication that a physical obstruction, stopping or blocking a <ROUTE>, is present. | BOOLEAN | 952 | |
| PHYSICAL_STATE | The physical state of an <OBJECT>. | ENUMERATION | 953 | |
| PICTORIAL_RESOURCE_REQUEST | Specifies the resource site where a request for a pictorial representation of an <OBJECT> is available; the pictorial resource request. | STRING | 954 | |
| PIPELINE_TYPE | The type of a <PIPELINE>. | ENUMERATION | 955 | |
| PITCH_ANGLE | The angular distance about the pitch axis of an <OBJECT> measured in the local vertical plane from the local horizontal clockwise (upwards) to the forward axis of the <OBJECT>. The forward axis of the <OBJECT> is the axis which passes through the <OBJECT> centre and is directed towards/through the forward part or <SURFACE> (front) of the <OBJECT>. The pitch axis of the <OBJECT> is normal to the forward axis in the horizontal plane of the <OBJECT> and forms a two dimensional right-handed <SYSTEM>. | REAL | PLANE_ANGLE | 956 |
|
PLANETARY_SRF_DEW_POINT- _DEPRESSION |
The <<DEW_POINT_DEPRESSION>> measured 1,25 to 2,0 metres above a <PLANETARY_SURFACE>. | REAL | THERMO_TEMPERATURE | 957 |
|
PLANETARY_SRF_DEW_POINT- _TEMPERATURE |
The <<DEW_POINT_TEMPERATURE>> measured 1,25 to 2,0 metres above a <PLANETARY_SURFACE>. | REAL | THERMO_TEMPERATURE | 958 |
|
PLANETARY_SURFACE_AIR- _TEMPERATURE |
The <<AIR_TEMPERATURE>> measured 1,25 to 2,0 metres above a <PLANETARY_SURFACE>. | REAL | THERMO_TEMPERATURE | 959 |
| PLANETARY_SURFACE_ATM_PRESSURE | The <<ATM_PRESSURE>> at a <PLANETARY_SURFACE>. | REAL | PRESSURE | 960 |
|
PLANETARY_SURFACE- _ILLUMINANCE_LEVEL |
The total solar and lunar contribution to the illuminance level measured at a <PLANETARY_SURFACE> as a function of <LOCATION>, date, time, and meteorological conditions. | REAL | RADIANT_ENERGY_FLUENCE | 961 |
| PLANETARY_SURFACE_TEMPERATURE | The temperature of a <PLANETARY_SURFACE>. | REAL | THERMO_TEMPERATURE | 962 |
| PLANT_COMPONENT_TYPE | The type of a <COMPONENT> of a <PLANT>. | ENUMERATION | 963 | |
| PLATFORM_COUNT | The number of platforms at a <TRANSPORTATION_STATION>; the platform count. | COUNT | 964 | |
| PLATOON_ACCOMMODATION_CAPACITY | The number of platoons and associated <EQUIPMENT> that an <OBJECT> can accommodate; the platoon accommodation capacity. | REAL | PURE_NUMBER | 965 |
| PLUNGING_BREAKER_FRACTION | The fraction of breaking <WATER_WAVE>s that are plunging. Plunging means that the <WATER_WAVE> peaks up until it is an advancing vertical wall of <WATER>, the crest then curls far over and descends violently into the preceding trough where the <SURFACE> of the <WATER> is essentially horizontal; a considerable amount of <AIR> is trapped in this process and this <AIR> escapes explosively behind the <WATER_WAVE>, throwing <WATER> high above the <SURFACE> and producing a loud explosive sound. | REAL | PURE_NUMBER | 966 |
| POINT_OBJECT_TYPE | The general type of a point <OBJECT>. | ENUMERATION | 967 | |
| POISSON_RATIO | The ratio of change in length in the direction of applied stress to change in width that is perpendicular to the direction of applied stress of a <MATERIAL> when placed under tension; the Poisson ratio. | REAL | PURE_NUMBER | 968 |
| POND_TYPE | The type of a pond. | ENUMERATION | 969 | |
| POPULATED_PLACE_TYPE | The type of a populated place. | ENUMERATION | 970 | |
| POPULATION | The number of <HUMAN>s within a delineated <REGION>; the population. | COUNT | 971 | |
| POSTURE | The posture of a <HUMAN>. | ENUMERATION | 972 | |
| POTENTIAL_AIR_TEMPERATURE | The <<AIR_TEMPERATURE>> a <REGION> of dry <AIR> would have, if brought adiabatically from its initial state to the standard pressure of 100 kilopascal (1 000 millibars); the potential air temperature. | REAL | THERMO_TEMPERATURE | 973 |
| POWER_GENERATING_CAPACITY | The electrical power generating capacity of an <OBJECT>; the power generating capacity. | REAL | POWER | 974 |
| POWER_GENERATION_RATE | A number between 0 and 1 inclusive representing the linearly-scaled fractional power generation of an <OBJECT> with the associated noise and heat. Zero means none at all and one means maximum. | REAL | PURE_NUMBER | 975 |
| POWER_PLANT_TYPE | The technology used by a <POWER_PLANT> to produce electricity. | ENUMERATION | 976 | |
| PRECIPITABLE_WATER | The total water vapour contained in a vertical column of unit cross-sectional <<AREA>> extending between any two specified <<HEIGHT_AGL>>s of an <ATMOSPHERE>; the precipitable water. | REAL | SURFACE_DENSITY | 977 |
| PRECIPITABLE_WATER_TOTAL | The total <<PRECIPITABLE_WATER>> contained in a column of unit cross section extending from the <PLANETARY_SURFACE> to the top of the <ATMOSPHERE>. | REAL | SURFACE_DENSITY | 978 |
| PRECIPITATION_INTENSITY | The intensity of <PRECIPITATION>. | ENUMERATION | 979 | |
|
PRECIPITATION_NOISE_POWER- _LEVEL |
The power level of acoustic noise energy in a <WATER_BODY> due to <PRECIPITATION> onto the <WATER_BODY_SURFACE>. | REAL | PRESSURE_POWER_LEVEL | 980 |
| PRECIPITATION_PERIOD | The <<TIME_QUANTITY>> prior to the referenced time over which <PRECIPITATION> accumulated. | REAL | TIME | 981 |
| PRECIPITATION_PHASE | The state (liquid/solid disposition) of precipitable <WATER>; the precipitation phase. | ENUMERATION | 982 | |
| PRECIPITATION_RATE | The rate of <PRECIPITATION>. | REAL | SPEED | 983 |
| PRECIPITATION_TYPE | The type of <PRECIPITATION>. | ENUMERATION | 984 | |
|
PREDOMINANT_DEPTH_WITHIN- _OBJECT |
The predominant (51 percent or more) <<DEPTH>> within the <REGION> delineated by an <OBJECT>. | REAL | LENGTH | 985 |
| PREDOMINANT_HEIGHT | The predominant (51 percent or more) <<HEIGHT_AGL>> of an <OBJECT>; if not obtainable, then the mean <<HEIGHT_AGL>> of the <OBJECT>. | REAL | LENGTH | 986 |
|
PREDOMINANT_HEIGHT_WITHIN- _OBJECT |
The predominant (51 percent or more) height within the <REGION> delineated by an <OBJECT>. | REAL | LENGTH | 987 |
| PREDOMINANT_SURROUND_TYPE | The predominant type of other <OBJECT>s within a <<RADIUS>> of 457 metres (1 500 feet) of an <OBJECT> of interest. | ENUMERATION | 988 | |
| PREDOMINANT_VEGETATION_HEIGHT | The predominant (51 percent or more) <<HEIGHT_AGL>> of <VEGETATION>. | REAL | LENGTH | 989 |
| PREDOMINANT_WATER_DEPTH | The predominant (51 percent or more) <<WATER_DEPTH>> determined at the greatest depth along a cross section of the <OBJECT>. | REAL | LENGTH | 990 |
|
PREPARED_EXPLOSIVE- _DESTRUCTION_COMPLETION- _FRACTION |
A number between 0 and 1 inclusive representing the linearly-scaled fraction of the extent to which an <OBJECT> has been prepared for destruction by explosives. Zero means no preparation at all and one means completely prepared. | REAL | PURE_NUMBER | 991 |
| PRESENT_WEATHER_TYPE_AUTOMATED | The type of weather existing at an automated <WEATHER_STATION> at the time of observation. | ENUMERATION | 992 | |
| PRESENT_WEATHER_TYPE_MANUAL | The type of weather existing at a manual <WEATHER_STATION> at the time of observation. | ENUMERATION | 993 | |
| PRESENT_WEATHER_TYPE_SPECIAL | The type of a special weather event or observation. | ENUMERATION | 994 | |
| PRESSURE_ALTIMETER_QUALITY | The quality of a <<PRESSURE_ALTIMETER_SETTING>>. | ENUMERATION | 995 | |
| PRESSURE_ALTIMETER_SETTING | The value of the <<ATM_PRESSURE>> used to adjust the subscale of a pressure altimeter so that it indicates the vertical distance of an <AIRCRAFT> above a known <<ATM_VERTICAL_REFERENCE>>. | REAL | PRESSURE | 996 |
| PRESSURE_ALTITUDE | The altitude that corresponds to a given <FLIGHT_LEVEL>; the pressure altitude. | REAL | LENGTH | 997 |
|
PRI_WEAPON_DEPLOYED_POS- _CATEGORY |
A category describing the <<PRI_WEAPON_DEPLOYED_POSITION>>. | ENUMERATION | 998 | |
| PRI_WEAPON_DEPLOYED_POSITION | A number between 0 and 1 inclusive representing the linearly-scaled fractional deployment of the primary weapon <SYSTEM> of an <OBJECT>. Zero means fully stowed/retracted and one means fully deployed. | REAL | PURE_NUMBER | 999 |
|
PRIMARY_AERIAL_DEPLOYED- _POSITION |
A number between 0 and 1 inclusive representing the linearly-scaled fractional deployment of the primary <AERIAL> on an <OBJECT>. Zero means fully stowed/retracted and one means fully deployed. | REAL | PURE_NUMBER | 1000 |
|
PRIMARY_AXIS_VELOCITY- _COMPONENT |
The velocity component of an <OBJECT> along the primary axis of a defined spatial reference frame. | REAL | SPEED | 1001 |
| PRIMARY_BREAKER_AZIMUTH | The horizontal angle measured in a clockwise <DIRECTION> from above from the planetary geodetic north to a <LINE> drawn perpendicular to the direction of propagation of primary breaking <WATER_WAVE>s in the wave spectra of a <SURF_ZONE>; the primary breaker azimuth. | REAL | PLANE_ANGLE | 1002 |
| PRIMARY_BREAKER_RELATIVE_ANGLE | The horizontal angle the primary breaking <WATER_WAVE>s make with respect to the <BEACH>. The angle varies from zero when the <LINE> of the <WATER_WAVE>s parallels the <BEACH> to 90 arc degrees on either the right or left flank as seen from <VESSEL>s approaching the <BEACH>; the primary breaker relative angle. | REAL | PLANE_ANGLE | 1003 |
| PRIMARY_BROADCAST_FREQUENCY | The designated primary broadcast <<FREQUENCY>> for a communications <DEVICE>. | REAL | FREQUENCY | 1004 |
| PRIMARY_BYPRODUCT | The primary by-product of a production, mining, or agricultural activity. | ENUMERATION | 1005 | |
| PRIMARY_DOOR_OPEN_POSITION | A number between 0 and 1 inclusive representing the linearly-scaled fractional opening of the primary <DOOR> of an <OBJECT>. Zero means fully closed and one means fully open. | REAL | PURE_NUMBER | 1006 |
| PRIMARY_ENTRANCE_LOCATION | The <LOCATION> of the primary (general) <STRUCTURE_ENTRANCE> as observed from outside the <STRUCTURE> looking towards its front. | ENUMERATION | 1007 | |
| PRIMARY_MATERIAL_TYPE | The type of primary <MATERIAL> of which an <OBJECT> is composed. | ENUMERATION | 1008 | |
| PRIMARY_OPERATING_AGENCY | A two character code reflecting the primary operating agency of an <AERODROME>. | STRING | 1009 | |
| PRIMARY_PRODUCT | The primary product resulting from a production, mining, or agricultural activity. | ENUMERATION | 1010 | |
| PRIMARY_RAW_MATERIAL | The primary raw <MATERIAL> involved in a production activity. | ENUMERATION | 1011 | |
| PRIMARY_SURFACE_AIR_VELOCITY | The velocity of the <AIR> at the primary <SURFACE>, generally the top, front, or outer side of a layer of <MATERIAL> or an <OBJECT>. | REAL | SPEED | 1012 |
| PRIMARY_SURFACE_TEMPERATURE | The temperature of the medium in contact with the primary <SURFACE> of an <OBJECT>, generally the top, front, or outer side of a layer of <MATERIAL>, that is typically used as a boundary condition in thermal solutions. | REAL | THERMO_TEMPERATURE | 1013 |
|
PRIMARY_SURFACE_THERMAL- _CONDITION |
The physical boundary condition at the primary <SURFACE> of an <OBJECT>, generally the top, front, or outer side of a layer of <MATERIAL>, that accounts for the thermal interface of the <OBJECT> with the environment at that <SURFACE>; the primary surface thermal condition. | ENUMERATION | 1014 | |
| PRIMARY_SWELL_WAVE_DIRECTION | The <<GEODETIC_AZIMUTH>> of the <DIRECTION> from which primary <SWELL_WAVE>s are arriving. | REAL | PLANE_ANGLE | 1015 |
| PRIMARY_SWELL_WAVE_HEIGHT | The mean height of the significant (highest one-third) primary <SWELL_WAVE>s. | REAL | LENGTH | 1016 |
| PRIMARY_SWELL_WAVE_PERIOD | The mean <<TIME_QUANTITY>> that a complete cycle (usually crest to crest or trough to trough) of a primary <SWELL_WAVE> takes to pass a given fixed point. | REAL | TIME | 1017 |
| PRIMARY_WAVE_DIRECTION | The <<GEODETIC_AZIMUTH>> of the <DIRECTION> from which significant <WATER_WAVE>s in the wave spectra are arriving. | REAL | PLANE_ANGLE | 1018 |
| PRIORITY | A value representing the priority of this <OBJECT> as compared to other <OBJECT>s which overlap in spatial extent. A higher value means a higher priority. | INTEGER | 1019 | |
| PROCESSING_NAME | A name for an <OBJECT> assigned to support processing internal to an information <SYSTEM>. | STRING | 1020 | |
| PROPERTY_SET_DATA_SOURCE | The source of data values of a <PROPERTY_SET>. | ENUMERATION | 1021 | |
| PROPERTY_SET_SPATIAL_DOMAIN | The spatial domain of a <PROPERTY_SET>. | ENUMERATION | 1022 | |
| PROPERTY_SET_VALID_TIME | The time relative to a specified zero hour at which a <PROPERTY_SET> is valid. | REAL | TIME | 1023 |
| PUBLICATION_REFERENCE | A reference to a specific paragraph in a publication. | STRING | 1024 |
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