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5 Questions

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SAMRA 14-4

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Questions and Answers

How does the frequency relate to attenuation in radar waves?

There is no relationship between frequency and attenuation

As frequency increases, attenuation decreases

As frequency increases, attenuation remains constant

As frequency increases, attenuation increases (correct)

What happens to the height of supercooled water when not far below freezing?

Height decreases significantly

Height remains constant

Height varies unpredictably

Height increases with slight proximity to freezing (correct)

What effect does shallow ground fog have on visibility during approach to landing?

Allows for normal visibility without restrictions

The slant visibility is more than RVRA at the touchdown zone (correct)

Only affects horizontal visibility

Reduces visibility to below minimums

What weather phenomenon is formed when a cold front meets a warm front?

<p>Trowal</p> Signup and view all the answers

Which of the following can weather radar detect?

<p>Only rain</p> Signup and view all the answers

Study Notes

Radar Wave Frequencies

As frequency increases, attenuation of radar waves also increases, affecting signal strength and reliability.

Supercooling Water

Supercooling occurs when water remains liquid at temperatures below freezing.
Height can either be increased or decreased while keeping close to the freezing level.
Emphasis on the keyword: increase.

Shallow Ground Fog Impact on Visibility

Shallow ground fog can result in slant visibility that exceeds the Required Visual Reference Area (RVRA) in the touchdown zone during landing.

Cold Front Interaction with Warm Front

The interaction of a cold front with a warm front leads to the formation of a trowal, which is a trough of warm air aloft in a frontal system.

Weather Radar Detection Capabilities

Weather radar is capable of detecting various types of precipitation including:
- Dry snow
- Snow
- Rain
- Hail

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Description

Test your knowledge on radar wave frequencies, supercooling of water, and the impact of shallow ground fog on visibility during landings. This quiz covers essential concepts related to atmospheric science and aviation safety. Prepare to answer questions on how these phenomena affect real-world scenarios.