D region

ریشه

The term 'D region' is derived from the classification of ionospheric regions based on their radio wave propagation characteristics. The regions are labeled D, E, F1, and F2, with D being the lowest.

مثال

• The D region is responsible for the absorption of high frequency (HF) radio waves during the day.
• The ionization in the D region is primarily caused by solar radiation.
• The D region disappears at night, as it is highly dependent on the sun for ionization.

ترکیب‌های رایج

D region ionization D region absorption D region of the ionosphere