<p>When looking at the earth wind map, some lines clearly distinguish themselve and act as "frontier" between stream of wind. I was wondering what it was and what was causing them? Thanks.</p>

<p><a href="https://i.sstatic.net/ursxH.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/ursxH.jpg" alt="enter image description here"></a></p>

CC BY-SA 4.0
2020-05-30T07:23:26.797Z
in the photo, it's the line that separate wind flows in two distinguishable area. Sorry I am aware the term is poorly chosen, I was hoping the photo would help understand. Please let me know if you still can't see what I mean.
maalls
CC BY-SA 4.0
2020-05-30T12:08:54.877Z
It definitely looks like a visualization artifact. Are you showing wind at constant pressure? wind at constant height? If the color relates to "absolute wind velocity from left to right" then what you are showing is "absolute wind velocity from left to right" almost 0 in certain region because the streamlines are turning from going to the right to going to the left ... therefore their component left to right goes to zero.
EarlGrey
CC BY-SA 4.0
2020-05-30T14:49:55.663Z
the picture you have posted is from https://earth.nullschool.net and is a map of the wind,the thin area is of windshear where the wind changes direction.
trond hansen
CC BY-SA 4.0
2020-05-31T12:14:46.910Z
https://i.sstatic.net/gr7mK.png was I 'quick"?
uhoh
<meteorology>
Why some area in the ocean seems to have like "wind barrier"?
maalls
# Why some area in the ocean seems to have like "wind barrier"?

(Asked by: username_0 on 2020-05-30)

When looking at the earth wind map, some lines clearly distinguish themselve and act as "frontier" between stream of wind. I was wondering what it was and what was causing them? Thanks.

[![enter image description here](https://i.sstatic.net/ursxH.jpg)](https://i.sstatic.net/ursxH.jpg)

**Tags:** meteorology

> **Comments:**
> **username_0**: in the photo, it's the line that separate wind flows in two distinguishable area. Sorry I am aware the term is poorly chosen, I was hoping the photo would help understand. Please let me know if you still can't see what I mean.  
> **username_1**: It definitely looks like a visualization artifact. Are you showing wind at constant pressure? wind at constant height? If the color relates to "absolute wind velocity from left to right" then what you are showing is "absolute wind velocity from left to right" almost 0 in certain region because the streamlines are turning from going to the right to going to the left ... therefore their component left to right goes to zero.  
> **username_2**: the picture you have posted is from https://earth.nullschool.net and is a map of the wind,the thin area is of windshear where the wind changes direction.  
> **username_3**: https://i.sstatic.net/gr7mK.png was I 'quick"?  

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## 0 answers

