Definitions for e region
e re·gion

Princeton's WordNetRate this definition:0.0 / 0 votes

1. Heaviside layer, Kennelly-Heaviside layer, E layer, E regionnoun

   a region of the ionosphere (from 50 to 90 miles up) that reflects radio waves of medium length

WikipediaRate this definition:0.0 / 0 votes

1. e region

   The Heaviside layer, sometimes called the Kennelly–Heaviside layer, named after Arthur E. Kennelly and Oliver Heaviside, is a layer of ionised gas occurring roughly between 90km and 150 km (56 and 93 mi) above the ground — one of several layers in the Earth's ionosphere. It is also known as the E region. It reflects medium-frequency radio waves. Because of this reflective layer, radio waves radiated into the sky can return to Earth beyond the horizon. This "skywave" or "skip" propagation technique has been used since the 1920s for radio communication at long distances, up to transcontinental distances. Propagation is affected by the time of day. During the daytime the solar wind presses this layer closer to the Earth, thereby limiting how far it can reflect radio waves. Conversely, on the night (lee) side of the Earth, the solar wind drags the ionosphere further away, thereby greatly increasing the range which radio waves can travel by reflection. The extent of the effect is further influenced by the season, and the amount of sunspot activity.

ChatGPTRate this definition:0.0 / 0 votes

1. e region

   The E region, also known as the Kennelly-Heaviside layer, is a layer of the Earth’s ionosphere that lies between the altitude of approximately 90 km to 150 km. It is named after Arthur E. Kennelly and Oliver Heaviside. The E region contains electrically charged particles, or ions, and plays a crucial role in the propagation of radio waves. It's known for reflecting medium to high-frequency radio waves. This reflection of waves allows long-distance radio communication. The ionization level (density of ionization particles) in this region varies based on time of day, season, geographical location, and solar activity.

Matched Categories

1. • Ionosphere
   • Region

How to pronounce e region?

1. Alex

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How to say e region in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of e region in Chaldean Numerology is: 1

2. Pythagorean Numerology

   The numerical value of e region in Pythagorean Numerology is: 1

Examples of e region in a Sentence

1. Greg Cox:

   Unfortunately, the reality is that for weeks now coronavirus cases have been reaching record highs in our county, we've seen a rise, not only in cases, but a rise in hospitalization rates and a rise in the use of our ICU beds in our region's hospitals.

2. David Weinberg:

   What we are seeing going on there is to some extent what happens when U.S. allies go off playbook when they don't think the U.S. is appropriately engaged with tackling the challenges of the region.

3. Melinda Gates:

   I can go to a specific region and a specific state ... in Mexico and I can look and see exactly how we are doing on maternal health, child health and neonatal deaths, that tells me as a government how to act.

4. Neil Dwane:

   ABI is paying a high price but accretion to earnings from low debt costs would be something in the region of 15 percent. However, we think the return on this deal could be a relatively disappointing 8 percent after 10 years.

5. Fawaz Gerges:

   If The US leaves, people across the region will think that despite his flowery rhetorical devices, Donald Trump does not really have a strategy for the Middle East and at the end of the day will fold and go home.

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=e region
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/E_Region
3. ^ ChatGPT
   https://chat.openai.com