Definitions for f layer
f layer

Princeton's WordNetRate this definition:0.0 / 0 votes

1. 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

WikipediaRate this definition:0.0 / 0 votes

1. 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.

ChatGPTRate this definition:0.0 / 0 votes

1. 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

1. • Ionosphere
   • Region

How to pronounce f layer?

1. Alex

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How to say f layer in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of f layer in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of f layer in Pythagorean Numerology is: 4

Examples of f layer in a Sentence

1. Pinkett Smith:

   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.

2. Johann Klages:

   During the initial shipboard assessments, the unusual coloration of the sediment layer quickly caught our attention ; it clearly differed from the layers above it, we had found a layer originally formed on land, not in the ocean.

3. Paul Cameron:

   We are the only enhancement for reading delivered while you read. The most powerful thing about reading is being lost in that reading experience, so what we do is add just one layer of that to get you into the experience quicker and keep you there for longer.

4. Ted Scambos:

   Basically, you’re getting heat stirred into the upper layer [of water] around the Antarctic.

5. Beau Duarte:

   In manned platforms, aerial refueling is a challenging maneuver because of the precision required by the pilot to engage the basket, adding an autonomous functionality creates another layer of complexity.

References

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