ceilometer
Measures cloud height
A ceilometer is an instrument that measures the height of a cloud base or the overall cloud ceiling above the ground.
It works by projecting a beam of light upward and measuring the reflection, commonly used at airports to assess visibility conditions for aircraft: The ceilometer indicated a ceiling of 500 feet.
Concentrated light device
- backscatterRadiation reflected backward
- sensorInput-detecting device
- calibrationAdjusting for measurement accuracy
- detectionAct of finding something
measurement · optical · infrared · ultrasonic · beam · pulse · receiver · lens
Range of clear sight
- overcastSky fully veiled
- fogLow-lying cloud cover
- stratusLow, flat cloud layer
- cumulusDense, billowing cloud type
nimbus · obscuration · precipitation · atmosphere · troposphere · dewpoint · humidity · forecasting
laser
Concentrated light device
- backscatterRadiation reflected backward
- sensorInput-detecting device
- calibrationAdjusting for measurement accuracy
detection · measurement · optical · infrared · ultrasonic · beam · pulse · receiver · lens · photodiode
visibility
Range of clear sight
cumulus · nimbus · obscuration · precipitation · atmosphere · troposphere · dewpoint · humidity · forecasting · synoptic
feet
Lower limbs' ends
resolution · accuracy · interval · threshold · reporting · automated · continuous · real-time · units · precision
runway
Paved path for planes
- airfieldAviation facility with runways
- airportAviation passenger facility
- approachWay of handling something
landing · takeoff · IFR · VFR · go-around · diversion · minima · tower · dispatcher · airspace
- meteorologyweather, rain, wind, snow, clouds
- sensorsbiosensors, temperature sensor, pressure sensors, heat sensor, ammeter
- weather instrumentsanemometer, hygrometer, rain gauge, thermograph, weather station
- atmospheric instrumentsaltimeter, anemometer, hygrometer, radiosonde, weather balloon
- Aviation Weathervisibility, turbulence, icing, wind shear, IFR
- weatherweather, rain, sun, snow, wind
ceilometerbathymeter
Underwater depth-measuring instrument
echo sounder · sonar · depth finder · seismometer · altimeter
meter, ceiling, thermometer, barometer, ceilings, speedometer, ceilinged, ceil