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Questions tagged [radar]

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5
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1answer
79 views

Giant Cavern the Size of Manhattan Under Thwaites Glacier in West Antarctica - how was satellite and airborne radar data combined?

This is a follow-up question to Giant Cavern the Size of Manhattan Under Thwaites Glacier in West Antarctica. The work is reported in an open access paper in Science: Heterogeneous retreat and ice ...
4
votes
1answer
107 views

Circular rain cloud observed in rain radar

This circular rain pattern was observed in Sydney’s rain radar today. It remained for the entire loop, wiggling around a bit but mostly staying in the same place. The fact that it’s centred around ...
5
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3answers
173 views

Can weather radar be used to track swarms other than mayflies?

Along the Mississippi River swarms of emerging mayflies have been seen on radar. The radar and image below are from a July 11, 2017 emergence near LaCrosse, Wisconsin. On the radar you can see the ...
1
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0answers
26 views

Which wavelengths is limestone most transparent to?

I think of the non-ionizing range, e.g. Terahertz or Radio. Limestone clearly is transparent to x-ray or gamma but thats not what i am asking for. Natural to low ranges of porosity/water content ...
1
vote
1answer
62 views

Help understanding radar data in subglacial lake complex beneath Devon Ice Cap

The BBC News article Isolated lakes found beneath Canadian ice sheet links to the open access Science Advances article Discovery of a hypersaline subglacial lake complex beneath Devon Ice Cap, ...
6
votes
2answers
270 views

How does ice-penetrating radar “see” through kilometers of ice without being absorbed?

The BBC News article Isolated lakes found beneath Canadian ice sheet links to the open access Science Advances article Discovery of a hypersaline subglacial lake complex beneath Devon Ice Cap, ...
5
votes
1answer
153 views

Can I use radar data to estimate snowfall, or is there a better way?

The problem: There are lots of websites that provide snow forecasts for various ski resorts. The area of interest to me is Japan, specifically the Nagano area, where I use snow-forecast.com and www....
6
votes
1answer
144 views

Need help understanding rain rate formulas from drop sizes

I have come across different formulas by which the rain rate [mm/s] or [mm/h] can be computed from the drop size distribution. I'm somehow unable to convert the different formulas into each other. It ...
4
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1answer
111 views

Has PAZ satellite been launched?

There are several mentions in the net about Spanish radar satellite called "PAZ", which should work in tandem with German TerraSAR-X and should have been launched in 2015. But most results I can find ...
3
votes
1answer
85 views

Why can't radar's decibel scale be used to determine the intensity of snowfall?

According to the FAA's Aviation Weather Services advisory circular, Values below 15 dBZ are typically associated with clouds. However, they may also be caused by atmospheric particulate matter ...
4
votes
1answer
459 views

Using Range Height Indicator scan of radar

I am learning about the several modes of radar that are used to study structure of thunder storms and mesoscale systems. There are three modes of radar scans as documented here - Weather Radar Systems ...
6
votes
1answer
169 views

Eliminating range folding error in doppler radar returns

With weather radar, it's not uncommon to see large areas of the image blocked out due to detected range folding. It's my understanding that this occurs when a reflection outside of range comes back ...