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d region

 

Definitions from WordNet

Noun d region has 1 sense
  1. D-layer, D region - the lowest region of the ionosphere (35 to 50 miles up) that reflects low-frequency radio waves
    --1 is a kind of region, part
    --1 is a part of ionosphere

Definitions from the Web

d region

Description:

The term "d region" refers to a specific region in the ionosphere, which is the upper part of Earth's atmosphere. The d region is known for its interaction with solar radiation and plays a crucial role in radio wave propagation. It absorbs high-frequency radio waves, particularly during the daytime, causing changes in communication patterns and influencing long-distance radio transmissions.

Sample Sentences:

Noun - Scientific Sense:
The d region is mainly responsible for the absorption of high-frequency radio waves in the ionosphere.

Noun - Communication Sense:
During solar flares, the increased ionization in the d region can disrupt radio communications.

Noun - Atmospheric Sense:
Scientists are conducting research to understand the dynamic behavior of the d region.

Related products on Amazon:
Ionospheric Physics Books
Radio Wave Propagation Tools

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