this post was submitted on 09 Oct 2024
115 points (98.3% liked)

Just Post

1100 readers
1 users here now

Just post something 💛

founded 2 years ago
MODERATORS
suns3t@lemmy.world
dual_sport_dork@lemmy.world
115
Milton (slrpnk.net)
submitted 11 months ago by Track_Shovel@slrpnk.net to c/justpost@lemmy.world
10 comments fedilink hide all child comments
 

I hate how she's switching between units, but cool picture

you are viewing a single comment's thread
view the rest of the comments
[–] sbv@sh.itjust.works 27 points 11 months ago (2 children)

I'm curious what gravity waves refer to in this context.

[–] protist@mander.xyz 36 points 11 months ago

Gravity waves, (not to be confused with ripples in space-time known as “gravitational waves”) distribute energy and momentum throughout the atmosphere. The more intense the storm, the greater the amount of energy that is transferred. These waves exist all the time, even on clear days, and waves in the troposphere can often be seen in the infrared and visible imagery. However, strong convection from storms can cause a bunch of energy to be released, which is then transferred to the upper atmosphere.

The most intense storms (as well as violent volcanic eruptions) have enough force to generate mesospheric gravity waves. These are gravity waves near the mesopause, the boundary between the mesosphere and the thermosphere, where Earth’s atmosphere meets space.

Source: https://www.nesdis.noaa.gov/news/guide-understanding-satellite-images-of-hurricanes

[–] TropicalDingdong@lemmy.world 1 points 11 months ago (1 children)

Same. I thought gravity waves could only be measured with extremely sensitive instrumentation. I think she might also be confusing km and miles

[–] IMongoose@lemmy.world 8 points 11 months ago (1 children)

290km per hour is about 180mph. She's just giving both for some reason.

[–] TropicalDingdong@lemmy.world -4 points 11 months ago

I think she is conflating the two based on the structure of her comparison.