phScience – Project Haystack

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lib:phScience

Project Haystack scientific definitions

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air

The mixture of gases which surrounds the earth

air-temp

Dry bulb temperature

air-velocity

Rate of air movement as distance over time

airQuality

Concentration of contaminants in the air

angle

Measurement of the relative difference in direction between two vectors or phasors

apparent

Perceived quantity

atmospheric

Related to the atmosphere of the earth

atmospheric-pressure

Barometric pressure exerted by the weight of the atmosphere

avg

Average

ch2o

Formaldehyde (CH₂O)

ch2o-concentration

Concentration of formaldehyde (CH₂O) in the air

ch4

Methane (CH₄)

ch4-emission

Greenhouse gas emission of methane (CH₄) into the air

cloudage

Percentage of sky obscured by clouds

co

Carbon monoxide (CO)

co-concentration

Concentration of carbon monoxide (CO) in the air

co2

Carbon dioxide (CO₂)

co2-concentration

Concentration of carbon dioxide (CO₂) in the air

co2-emission

Greenhouse gas emission of carbon dioxide (CO₂) into the air

co2e

Carbon dioxide equivalent

concentration

Abundance of substance in the total volume of a mixture

current

Movement of fluid or electricity

daytime

Time between sunrise and sunset

dewPoint

Dew point temperature at which water vapor will form dew

direction

Compass direction measured in degrees

elec

Associated with electricity, electric charge

elec-current

Electrical current

elec-energy

Electrical energy consumed

elec-power

Electrical energy consumed per unit time

elec-volt

Electrical voltage, potential difference

emission

Amount of a substance discharged into the air

energy

Measure of ability to do work

enthalpy

Total heat content of a system

feelsLike

Apparent temperature perceived when considering humidity, wind chill, and heat index

flow

Measure of volumetric flow of fluid

fluid

Liquid or gas

flux

Measurement through a given surface

freq

Occurrences per unit time

gas

Substance with neither definite volume nor shape

hfc

Hydrofluorocarbons

hfc-emission

Greenhouse gas emission of hydrofluorocarbons into the air

humidity

Percent relative humidity

ice

Water in its solid form

illuminance

Luminous flux hitting the inside of the sphere at a specific point

intensity

Measure of an electromagnetic field

irradiance

Energy received at a surface by area

level

Range from 0% to 100%

light

Electromagnetic radiation in the visible spectrum

light-level

Sensed or controlled dimming level of electrical lighting

liquid

Substance with definite volume but takes the shape of its container

luminance

Energy of light in a given direction

luminous

Relating to light as perceived by the eye

luminous-flux

Total perceived light in all directions

luminous-intensity

Perceived light in a particular direction per unit solid angle

magnitude

Size or extent

n2o

Nitrous oxide (N₂O)

n2o-emission

Greenhouse gas emission of nitrous oxide (N₂O) into the air

nf3

Nitrogen trifluoride (NF₃)

nf3-emission

Greenhouse gas emission of nitrogen trifluoride (NF₃) into the air

nh3

Ammonia (NH₃)

nh3-concentration

Concentration of ammonia (NH₃) in the air

no2

Nitrogen dioxide (NO₂)

no2-concentration

Concentration of nitrogen dioxide (NO₂) in the air

o2

Oxygen (O₂) - the common dioxygen allotrope in the air

o3

Ozone (O₃)

o3-concentration

Concentration of ozone (O₃) in the air

pfc

Perfluorocarbons

pfc-emission

Greenhouse gas emission of perfluorocarbons into the air

phenomenon

Aspect of scientific interest with measurable quantities

pm01

Particulate matter 0.1

pm01-concentration

Concentration of particulate matter 0.1 in the air

pm10

Particulate matter 10

pm10-concentration

Concentration of particulate matter 10 in the air

pm25

Particulate matter 2.5

pm25-concentration

Concentration of particulate matter 2.5 in the air

power

Energy consumed per unit time

precipitation

Amount of atmospheric water vapor fallen including rain, sleet, snow, and hail

prefUnit

Defines a preferred unit to be used with a quantity

pressure

Measure of force applied

quality

Quantity measured against standard metric

quantities

Quantities used to measure this phenomenon

quantity

Measurable property of a substance or phenomenon

quantityOf

Associates quantity as measurement of a phenomenon

sf6

Sulphur hexafluoride (SF₆)

sf6-emission

Greenhouse gas emission of sulphur hexafluoride (SF₆) into the air

solar

Relating to energy from the sun

solar-irradiance

Energy received on surface of the earth from the sun

solid

Substance with definite shape and volume

speed

Distance per unit time

steam

Water in its gas form

substance

Matter in one the three states solid, liquid, or gas

temp

Temperature - measure of hot and cold

total

Complete or absolute

tvoc

Total volatile organic compound (TVOC)

tvoc-concentration

Concentration of total volatile organic compounds (TVOC) in the air

velocity

Speed in a given direction

visibility

Distance at which light can be clearly discerned

volt

Electrical voltage, potential difference

volume

Three dimensional space occupied by a substance

water

Water in its liquid form

weather

Associated with atmospheric air or phenomenon

weatherCond

Enumeration of weather conditions

wetBulb

Wet bulb air temperature

wind

Flow of air on surface of the Earth

wind-direction

Compass direction from which wind originates

wind-speed

Wind flow speed