Term: radio_signal_roundtrip_travel_time_in_air

Unit: s

Unit ref: UTBB

AMIP:

GRIB:

The quantity with standard name radio_signal_roundtrip_travel_time_in_air is the time taken for an electromagnetic signal to propagate from an emitting instrument such as a radar or lidar to a reflecting volume and back again. The signal returned to the instrument is the sum of all scattering from a given volume of air regardless of mechanism (examples are scattering by aerosols, hydrometeors and refractive index irregularities, or whatever else the instrument detects).

Term: radio_signal_roundtrip_travel_time_in_air

Unit: s

Unit ref: UTBB

AMIP:

GRIB:

Time it takes for a radio wave, that was transmitted by an instrument to propagate through the air to the volume of air where it is scattered and return back to an instrument. The "instrument" (examples are radar and lidar) is the device used to make the observation. The "scatterers" are what causes the transmitted signal to be returned to the instrument (examples are aerosols, hydrometeors and refractive index irregularities in the air). A standard name referring to time taken for a radio signal to propagate from the emitting instrument to a scattering volume and back to an instrument.