You are notlogged in. Your edit will be placed in a queue until it ispeer reviewed.
We welcome edits that make the post easier to understand and more valuable for readers. Because community members review edits, please try to make the post substantially better than how you found it, for example, by fixing grammar or adding additional resources and hyperlinks.
-
$\begingroup$ Doppler radar does not see air moving upward or downward. It only sees the radial component of the velocity of water particles moving toward or away from the radar antenna. The component of velocity orthogonal to the radial line is undetectable by radar. This is the zero isodop problem. $\endgroup$–David HammenAug 9, 2017 at 20:33
-
$\begingroup$ My understanding is that such flow was turbulent and provided enough data for tracking. But I'm not hands on and will defer to a better knowledge. $\endgroup$–TomOAug 10, 2017 at 15:47
-
$\begingroup$ @DavidHammen but rising or falling airwill有组件正交辐射线法文吗om the radar! I mean, unless the radar is pointing directly up or down? ;-) $\endgroup$–Semidiurnal SimonJul 9, 2019 at 16:51
-
$\begingroup$ @SemidiurnalSimon - Doppler detects range rate, the component of velocity along the line from the radar site to the target. The targets in this case, raindrops falling from clouds, is typically removed from the radar site by tens of kilometers. This means the vertical component of the falling rain is more or less undetectable, as is the horizontal component of velocity that is orthogonal to the line from the radar site to the clouds. Combining results from multiple doppler radar give a nice 2D view of the rain, but the vertical component remains more or less undetectable. $\endgroup$–David HammenJul 9, 2019 at 23:03
-
$\begingroup$ @DavidHammen sorry, I got my language confused. But I also see your point that the radial component of far-away vertical movement is very small. $\endgroup$–Semidiurnal SimonJul 9, 2019 at 23:31
Add a comment
|
How to Edit
- Correct minor typos or mistakes
- Clarify meaning without changing it
- Add related resources or links
- Alwaysrespect the author’s intent
- Don’t use edits to reply to the author
How to Format
- create code fences with backticks ` or tildes ~```
like so
``` - add language identifier to highlight code```python
deffunction(foo):
print(foo)
``` - put returns between paragraphs
- for linebreak add 2 spaces at end
- _italic_or**bold**
- quote by placing > at start of line
- to make links (use https whenever possible)
[example](https://example.com)
example - MathJax equations
$\sin^2 \theta$
How to Tag
A tag is a keyword or label that categorizes your question with other, similar questions. Choose one or more (up to 5) tags that will help answerers to find and interpret your question.
- complete the sentence:my question is about...
- use tags that describe things or concepts that areessential, not incidental to your question
- favor usingexisting popular tags
- read the descriptions that appear below the tag
If your question is primarily about a topic for which you can't find a tag:
- combine multiple words into single-words with hyphens (e.g.climate-change), up to a maximum of 35 characters
- creating new tags is a privilege; if you can't yet create a tag you need, then post this question without it, thenask the community to create it for you