d-layer

• Нижняя область ионосферы, расположенная примерно на высоте от 35 до 50 миль над поверхностью Земли, которая отражает низкочастотные радиоволны.

The lowest region of the ionosphere, located approximately 35 to 50 miles above the Earth's surface, which reflects low-frequency radio waves.

имя собственное

1. Lowest ionospheric regionC2formalscientific

   The lowest region of the ionosphere, located approximately 35 to 50 miles above the Earth's surface, which is responsible for reflecting low-frequency radio waves.

   Слой D

   • The D-layer is crucial for long-distance radio communication.
   • Radio waves are absorbed by the D-layer during the day.
   • The D-layer disappears at night, affecting signal propagation.