Definition of D-layer in English:
The lowest layer of the ionosphere, able to reflect low-frequency radio waves.
- They will penetrate to the D-layer and increase the ionisation process and the electron density.
- The ionospheric D-layer is a narrow bandwidth radar target often with a very small scattering cross section.
- Simply due to the height difference of the ‘responsible’ layer, troposcatter is useful up to distances of 700 Km, whereas D-layer is at best in the 600/1300 Km range.
1930s: from an arbitrary use of the letter D.
Definition of D-layer in:
- US English dictionary
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.
Most popular in the US
Most popular in the UK
Most popular in Canada
Most popular in Australia
Most popular in Malaysia
Most popular in India
Most popular in Pakistan