What does anemometry mean?
Anemometry is the science and practice of measuring wind speed and, frequently, wind direction. The word belongs chiefly to meteorology, aviation, and engineering, where accurate wind data underpins everything from weather forecasting and storm warnings to aircraft safety and the siting of wind turbines. Measurement is performed with devices called anemometers, which come in many forms: traditional rotating-cup designs, spinning vanes, heated hot-wire sensors for fine turbulence studies, ultrasonic sonic instruments with no moving parts, and remote-sensing systems such as Doppler lidar that profile winds aloft. Because wind is variable and three-dimensional, anemometry also encompasses careful questions of instrument calibration, exposure, and averaging period. Though rarely heard in everyday conversation, the word is well established in technical writing, where it signals rigor about how wind measurements were obtained. Its Greek roots — anemos meaning wind and metron meaning measure — make its meaning transparent once known.
nounThe scientific measurement of wind speed and, often, wind direction, typically using instruments such as anemometers.
- The measurement of wind speed (and sometimes direction), especially by means of instruments such as cup, hot-wire, sonic, or laser-based anemometers.
- As a broader discipline: the branch of physics or meteorology concerned with techniques and instruments for measuring gas flows, including airflow in engineering contexts.
"Accurate anemometry is essential for safe aircraft operations at exposed mountain airfields."
"Modern sonic anemometry allows researchers to measure turbulent airflow with remarkable precision."
"Before reliable anemometry existed, sailors estimated wind force largely by eye and by the Beaufort scale."
Anemometry functions as an abstract mass noun and is almost never pluralized; any plural would be purely formal.
"Different anemometries yield slightly different estimates of mean wind speed."
Every wind speed ever recorded — from a garden breeze to a 253 mph cyclone gust — was captured through anemometry, a science whose name comes straight from the Greek god of winds' favorite element: anemos, 'wind'.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of anemometry
Anemometry derives from Greek roots: anemos, meaning 'wind', combined with -metry, from metron, 'measure', on the model of other scientific measurement terms like geometry and symmetry. English adopted the term in the nineteenth century as instrument makers and physicists developed systematic methods for quantifying wind, alongside the related noun anemometer, coined earlier for the measuring device itself. It shares its root with anemone (the 'windflower'), anemia, and the adjective anemophilous, all ultimately tracing back to the same Greek stem.
Related word forms
How anemometry is actually used
A technical term used mainly in meteorology, aviation, environmental science, and fluid dynamics; rare in everyday conversation. In casual speech people almost always refer to an anemometer (the instrument) rather than to anemometry (the practice).
Easily confused with anemometry
An anemometer is the physical instrument used to measure wind, while anemometry is the practice or science of measuring wind speed.