lib
lib:phScience
Project Haystack scientific definitions
meta
| def | lib:phScience |
|---|---|
| depends | lib:ph |
| is | lib |
| lib | lib:phScience |
| version | 3.9.15 |
tags
| 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 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 |