lib
lib:phScience
Project Haystack scientific definitions
meta
baseUri | https://project-haystack.org/def/phScience/ |
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def | lib:phScience |
depends | lib:ph |
doc | See above |
is | lib |
lib | lib:phScience |
version | 3.9.15 |
tags
air |
The mixture of gases which surrounds the earth |
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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 or with electrical force, power, or energy |
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 potential difference or electromotive force |
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 |