doppler radar: meaning, definition, pronunciation and examples
Low-Frequency (Technical/Specialized)Technical/Scientific
Quick answer
What does “doppler radar” mean?
A radar system that measures the velocity of a moving target by analyzing the change in frequency of the returned signal, based on the Doppler effect.
Audio
Pronunciation
Definition
Meaning and Definition
A radar system that measures the velocity of a moving target by analyzing the change in frequency of the returned signal, based on the Doppler effect.
A specialized technology used extensively in meteorology to detect precipitation, measure its motion, and estimate its type (rain, snow, hail) and intensity; also used in aviation, navigation, law enforcement (speed guns), and astronomy.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Both dialects use the same term.
Connotations
Identical technical connotations in both dialects.
Frequency
Equally low-frequency in both dialects, confined to meteorological, aviation, and scientific contexts.
Grammar
How to Use “doppler radar” in a Sentence
The [adjective] doppler radar detected [object].They tracked the storm using doppler radar.[Entity] is equipped with doppler radar.Vocabulary
Collocations
Examples
Examples of “doppler radar” in a Sentence
adjective
British English
- The doppler-radar data was crucial for the warning.
- They reviewed the doppler-radar imagery.
American English
- The Doppler-radar data was crucial for the warning.
- They reviewed the Doppler-radar imagery.
Usage
Meaning in Context
Business
Rare; might appear in contexts like aviation logistics or agricultural weather monitoring.
Academic
Common in meteorology, physics, and engineering papers and textbooks.
Everyday
Primarily heard in weather forecasts ('on the doppler radar').
Technical
The primary domain of use, with precise specifications regarding wavelength, pulse repetition frequency, and velocity ambiguity.
Vocabulary
Synonyms of “doppler radar”
Strong
Neutral
Weak
Vocabulary
Antonyms of “doppler radar”
Watch out
Common Mistakes When Using “doppler radar”
- Incorrectly capitalizing 'radar' (it's 'Doppler radar', not 'Doppler Radar', unless starting a sentence).
- Misspelling as 'dopplar radar' or 'doppler rader'.
- Using it as a verb (e.g., 'They doppler-radared the storm' is highly non-standard).
FAQ
Frequently Asked Questions
Yes, because it is derived from a proper name (Christian Doppler). The full term is 'Doppler radar'.
It cannot 'see' visually, but it can detect the rotation and wind velocities associated with a tornado, often revealing a distinctive 'hook echo' or rotational signature.
Standard radar primarily detects an object's location and distance. Doppler radar adds the capability to precisely measure the object's radial velocity (speed directly toward or away from the radar) by analyzing frequency shifts.
It is used for wind shear detection (like dangerous microbursts) near airports, monitoring storm movement for flight path planning, and in aircraft themselves for navigation and weather avoidance.
A radar system that measures the velocity of a moving target by analyzing the change in frequency of the returned signal, based on the Doppler effect.
Doppler radar is usually technical/scientific in register.
Doppler radar: in British English it is pronounced /ˈdɒp.lə ˈreɪ.dɑː/, and in American English it is pronounced /ˈdɑː.plɚ ˈreɪ.dɑːr/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None”
Learning
Memory Aids
Mnemonic
Think of a police radar gun measuring a car's speed – that uses the Doppler effect. 'Doppler Radar' is like a super-powered, stationary version that scans the sky to measure how fast rain or wind is moving towards or away from it.
Conceptual Metaphor
A technological 'ear' that listens to the pitch change of reflected radio waves to 'hear' how fast something is moving.
Practice
Quiz
What is the primary scientific principle behind a doppler radar?