24

It works the same way any radar works. An antenna broadcasts a pulse of energy and listens for its reflection and interprets the power of the reflection to calculate the reflectivity factor Z, expressed in decibels dBZ (helpful because return power varies across many orders of magnitude). Weather radar can see water, hail, bugs, birds, bats and bigger ...


13

They are not connected to the ground, they are RADARs and operate independently. The RADAR sends pulses, typically in the 10cm or 5cm range, which are reflected by water droplets. The greater the concentration of droplets, the more the reflection (more power returned to the RADAR) which is used to provide the colours. Green means light density, orange ...


7

The F-4 radar was a low PRF pulse radar, designed to search for, acquire, and track other airborne aircraft, and then provide guidance for Aim-7 Sparrow air-to-air missiles. It also had a ground mapping capability, and a capability to detect and display severe weather, but it was primarily designed for air-to-air combat. Later models of the F-4 had an more ...


6

"Radiation" is a broad term and does not always imply radio active isotope material. High power radar units can have adverse effects on the human body. The power that radar systems emit varies from a few milliwatts (police traffic control radar) to many kilowatts (large space tracking radars). However, a number of factors significantly reduce human ...


6

There is no definitive, objective, commonly agreed upon set of criteria that I am aware of that provides an answer to your question. Certainly airline dispatch departments strive to send aircraft along routes that will minimize exposure to extreme conditions if that's an option, and there may even be changes of schedules involved, but in the end, it's the ...


6

Easy. You don't go through, or close to, a thunderstorm cell (a red area, which is lots of water), period. You decide on a heading change to navigate around it, request it from ATC, and if the heading you want is not forthcoming, you tell ATC you are altering heading for weather. You are not required to endanger the aircraft to comply with an ATC ...


5

My guess is it is an urban legend. Ground based weather radar have been used track and analyse behaviour of birds. Part of this research was done with the radar in fixed beam mode to record individual wing beat frequencies for species identification, keeping the bird in the radar beam. If the birds would be scared away by the beam this research would be ...


5

The pilots did discuss the weather ahead and made some corrections to their course to compensate: 25 minutes before the autopilot disconnected they discussed climbing to a higher altitude, but the temperature was too high for them to climb. They turned on the landing lights and noted they were entering clouds and would be encountering some turbulence. They ...


5

There are potentially as many reasonable answers to your question as there are pilots that have had to regularly pick their way through lines of thunderstorms. In that sense, the answers may be as much opinion based as factual. However, I think there's enough objectivity involved to hazard my hopefully somewhat objective opinion. Let's say the image of the ...


4

In the USA, planes with ADS-B can receive FAA transmitted weather from ground stations for display in the cockpit. It can lag by several minutes. https://www.faa.gov/nextgen/programs/adsb/pilot/ Planes with XM weather can receive more timely weather from satellite feed for display in the cockpit. Airborne radar has the advantage of being the most immediate,...


3

When faced with bad weather there are several considerations. A practical one is whether you will be able to get to your destination. That is, will the weather be worse there, or will there be conditions which prevent your arrival. For example, flying through pre-frontal precipitation (precip hereinafter) may be pale in comparison to landing with 65k gusts ...


2

The question seems to overlook the facts of the pitot system icing up. The BEA's final report, released at a news conference on 5 July 2012, concluded that the aircraft crashed after temporary inconsistencies between the airspeed measurements – likely due to the aircraft's pitot tubes being obstructed by ice crystals – caused the autopilot to disconnect, ...


2

Since both ground based and airborne weather radar is all about bouncing radio waves off water, the issue is, do you want to send the radio waves from your airplane or from a ground antenna somewhere in the region. Well, there are advantages and disadvantages to both; one presents a weather "big picture", the other tells you what is going on right in front. ...


1

What I also foresee is the integration of information coming from: Airborne weather radar Ground based terminal radars Satellite radars Other sources like LiDAR or thermal sensors. Each of them has advantages and disadvantages. For example, one of the most dangerous disadvantages of airborne radars is the "attenuation", which hides the weather behind a ...


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