What does f layer mean?
Definitions for f layer
f layer
This dictionary definitions page includes all the possible meanings, example usage and translations of the word f layer.
Princeton's WordNet
Appleton layer, F layer, F regionnoun
the highest region of the ionosphere (from 90 to 600 miles up) which contains the highest concentration of free electrons and is most useful for long-range radio transmission
Wikipedia
f layer
The F region of the ionosphere is home to the F layer of ionization, also called the Appleton–Barnett layer, after the English physicist Edward Appleton and New Zealand physicist and meteorologist Miles Barnett. As with other ionospheric sectors, 'layer' implies a concentration of plasma, while 'region' is the volume that contains the said layer. The F region contains ionized gases at a height of around 150–800 km (100 to 500 miles) above sea level, placing it in the Earth's thermosphere, a hot region in the upper atmosphere, and also in the heterosphere, where chemical composition varies with height. Generally speaking, the F region has the highest concentration of free electrons and ions anywhere in the atmosphere. It may be thought of as comprising two layers, the F1 and F2 layers. The F-region is located directly above the E region (formerly the Kennelly-Heaviside layer) and below the protonosphere. It acts as a dependable reflector of HF radio signals as it is not affected by atmospheric conditions, although its ionic composition varies with the sunspot cycle. It reflects normal-incident frequencies at or below the critical frequency (approximately 10 MHz) and partially absorbs waves of higher frequency.
ChatGPT
f layer
The F Layer, also known as the Appleton Layer, refers to the highest layer in the ionosphere, a section of the Earth's atmosphere that ranges approximately from 100 to 600 miles above the surface of the Earth. This layer is responsible for reflecting most shortwave radio waves, and its level of ionization varies with the levels of solar radiation, allowing for long distance radio communication. It is often further separated into two sub-layers, F1 and F2.
Matched Categories
Numerology
Chaldean Numerology
The numerical value of f layer in Chaldean Numerology is: 2
Pythagorean Numerology
The numerical value of f layer in Pythagorean Numerology is: 4
Examples of f layer in a Sentence
Sue Patton Thoele, The Courage To Be Yourself Journal:
At the center of each human heart is goodness, layered over with hurt, confusion, and mistaken ideas. Our task is to gently peel off layer after layer until the unfettered heart can shed its love upon the world.
Common sense is that layer of prejudices which we acquire before we are sixteen.
Public safety remains our top priority and the youngest members of our community deserve to always be safe at school, i am discouraged to learn the suspect was released in less than 24 hours without an ankle monitor or any additional layer of accountability and protection for our community.
I got ta be honest. I think one of the things that I've realized is that I don't know Will at all, i feel like there's a layer that you get to, life gets busy and you create these stories in your head, and then you hold onto these stories and that is your idea of your partner ; that's not who your partner is.
If you have a physical covering with one layer, you put another layer on, it just makes common sense that it likely would be more effective and that's the reason why you see people either double masking or doing a version of an N95.
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"f layer." Definitions.net. STANDS4 LLC, 2024. Web. 19 Mar. 2024. <https://www.definitions.net/definition/f+layer>.
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