core/quantities

VocabularyCoreDraft57 terms

What an amount describes: the codes for a Property's type, an Axis's quantity, an Emission's type, an Evidence's observed and a Criterion's metric. Each term states its unit and valid range.

Used by Axis, Criterion, Emission, Evidence, Property, Step and Trace.

General

time
Time
A point in time. As an axis, its coordinates are RFC 3339 date-times.
frequency
Frequency
UnitHzValuenumberRangeat least 0
Frequency.
height
Height
UnitmValuenumber
Height above the local ground.
depth
Depth
UnitmValuenumberRangeat least 0
Depth below the local ground or water surface.
distance
Distance
UnitmValuenumberRangeat least 0
Distance between two places.
easting
Easting
UnitmValuenumber
The first coordinate of a projected coordinate reference system.
northing
Northing
UnitmValuenumber
The second coordinate of a projected coordinate reference system.
longitude
Longitude
UnitdegValuenumberRange-180 to 180
Longitude, east positive.
latitude
Latitude
UnitdegValuenumberRange-90 to 90
Latitude, north positive.
angle
Angle
UnitdegValuenumber
An angle with no fixed zero, such as an angle of incidence. A direction on the ground is a bearing.
bearing
Bearing
UnitdegValuenumberRange0 to 360
A horizontal direction, in degrees clockwise from true north.
grid_bearing
Grid bearing
UnitdegValuenumberRange0 to 360
A horizontal direction, in degrees clockwise from the grid north of the coordinate reference system.
record
Record
Valuestring
A record of the document. As an axis, its coordinates are record ids, such as one coordinate for each source.
complex_part
Complex part
ValuestringOne ofrealimaginary
The part of a complex amount: an axis with the coordinates real and imaginary.

Dimension

length
Length
UnitmValuenumberRangeat least 0
Length of a record, such as a wall.
width
Width
UnitmValuenumberRangeat least 0
Width of a record.
thickness
Thickness
UnitmValuenumberRangeat least 0
Thickness of a record, such as a wall.
area
Area
Unitm2ValuenumberRangeat least 0
Area of a record.
storey_count
Storey count
Unit1ValuenumberRangeat least 0
The number of storeys of a building.
material
Material
Valuestring
What a record is made of, such as concrete or steel.

Weather

air_temperature
Air temperature
UnitdegCValuenumberRange-80 to 60Height2 mForCondition, Assumption, Evidence
Air temperature.
relative_humidity
Relative humidity
Unit%ValuenumberRange0 to 100Height2 mForCondition, Assumption, Evidence
Relative humidity.
air_pressure
Air pressure
UnithPaValuenumberRange500 to 1100ForCondition, Assumption, Evidence
Air pressure at the surface, not reduced to sea level.
precipitation_rate
Precipitation rate
Unitmm/hValuenumberRange0 to 500ForCondition, Assumption, Evidence
Rain and melted snow over the interval.
snowfall_rate
Snowfall rate
Unitmm/hValuenumberRange0 to 500ForCondition, Assumption, Evidence
Snowfall as liquid water over the interval.
cloud_cover
Cloud cover
Unit%ValuenumberRange0 to 100ForCondition, Assumption, Evidence
Total cloud cover.
cloud_cover_low
Low cloud cover
Unit%ValuenumberRange0 to 100ForCondition, Assumption, Evidence
Cloud cover below 3 km.
cloud_cover_mid
Middle cloud cover
Unit%ValuenumberRange0 to 100ForCondition, Assumption, Evidence
Cloud cover from 3 to 8 km.
cloud_cover_high
High cloud cover
Unit%ValuenumberRange0 to 100ForCondition, Assumption, Evidence
Cloud cover above 8 km.
temperature_profile_log
Temperature profile, logarithmic coefficient
UnitKValuenumberRange-20 to 20ForCondition, Assumption, Evidence
The coefficient a_T of the temperature profile T(z) = T0 + a_T·ln(1 + z/z0) + b_T·z.
Salomons (2001), Computational Atmospheric Acoustics
temperature_profile_linear
Temperature profile, linear coefficient
UnitK/mValuenumberRange-1 to 1ForCondition, Assumption, Evidence
The coefficient b_T of the temperature profile; positive in an inversion.
Salomons (2001), Computational Atmospheric Acoustics
wind_speed
Wind speed
Unitm/sValuenumberRange0 to 100Height10 mForCondition, Assumption, Evidence
Mean wind speed.
wind_direction
Wind direction
UnitdegValuenumberRange0 to 360Height10 mForCondition, Assumption, Evidence
The direction the wind comes from, in degrees from true north.
wind_gust
Wind gust
Unitm/sValuenumberRange0 to 150Height10 mForCondition, Assumption, Evidence
The peak gust over the interval.
roughness_length
Roughness length
UnitmValuenumberRange0.00001 to 5ForCondition, Assumption, Evidence
The aerodynamic roughness length z0 of the wind profile.
wind_profile_log
Wind profile, logarithmic coefficient
Unitm/sValuenumberRange-20 to 20ForCondition, Assumption, Evidence
The coefficient a_u of the wind profile along the wind direction.
Salomons (2001), Computational Atmospheric Acoustics
wind_profile_linear
Wind profile, linear coefficient
Unit1/sValuenumberRange-1 to 1ForCondition, Assumption, Evidence
The coefficient b_u of the wind profile along the wind direction.
Salomons (2001), Computational Atmospheric Acoustics
pasquill_class
Pasquill stability class
ValuestringOne ofABCDEFGForCondition, Assumption, Evidence
The Pasquill–Gifford stability class, A very unstable to G very stable.
obukhov_length_inverse
Inverse Obukhov length
Unit1/mValuenumberRange-100 to 100ForCondition, Assumption, Evidence
The inverse Monin–Obukhov length 1/L: positive when stable, 0 when neutral.
friction_velocity
Friction velocity
Unitm/sValuenumberRange0 to 5ForCondition, Assumption, Evidence
The surface friction velocity u*.
sensible_heat_flux
Sensible heat flux
UnitW/m2ValuenumberRange-1000 to 1500ForCondition, Assumption, Evidence
The surface sensible heat flux, positive from the ground into the air.
boundary_layer_height
Boundary layer height
UnitmValuenumberRange0 to 6000ForCondition, Assumption, Evidence
The height of the atmospheric boundary layer.
shortwave_radiation
Shortwave radiation
UnitW/m2ValuenumberRange0 to 1500ForCondition, Assumption, Evidence
Global horizontal shortwave radiation, the mean over the interval.

Terrain

elevation
Elevation
UnitmValuenumber
The height of the ground above the vertical datum.
ground_type
Ground type
Valuestring
What the ground surface is, such as grass, gravel or pavement.
land_cover
Land cover
Valuestring
What covers the land, such as forest, crop or water.
slope
Slope
UnitdegValuenumberRange0 to 90
The slope of the ground.

Operation

rotational_speed
Rotational speed
Unit1/minValuenumberRangeat least 0
How fast a machine turns.
load
Load
Unit%ValuenumberRange0 to 150
The share of rated output a machine runs at.
rated_power
Rated power
UnitkWValuenumberRangeat least 0
The power a machine is rated for.
power
Power
UnitkWValuenumberRangeat least 0
The power a machine runs at.
gas_flow_rate
Gas flow rate
Unite3m3/dValuenumberRangeat least 0
Gas volume per unit time, at standard conditions.
liquid_flow_rate
Liquid flow rate
Unitm3/dValuenumberRangeat least 0
Liquid volume per unit time.
operating_hours
Operating hours
UnithValuenumberRange0 to 24
The hours a day a source runs.
fuel_type
Fuel type
Valuestring
The fuel a source burns, such as natural gas or diesel.

Instrument

instrument_class
Instrument class
ValuestringOne ofclass_1class_2ForInstrument
The class of a sound level meter, as IEC 61672-1.
IEC 61672-1:2013
firmware_version
Firmware version
ValuestringForInstrument
The version of the instrument's firmware.