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Astronomy Picture of the Day - Ship Tracks over the Pacific Ocean
APOD.NASA.gov ^ | 8 Jun, 2022 | Image Credit: NASA, Terra, MODIS; Text: Raymond Shaw (MTU)

Posted on 06/08/2022 3:43:59 PM PDT by MtnClimber

Explanation: What are those unusual streaks? Some images of planet Earth show clear bright streaks that follow the paths of ships. Known as ship tracks, these low and narrow bands are caused by the ship's engine exhaust. Water vapor condenses around small bits of exhaust known as aerosols, which soon grow into floating water drops that efficiently reflect sunlight. Ship tracks were first discovered in 1965 in Earth images taken by NASA's TIROS satellites. Multiple ship tracks are visible across the featured image that was captured in 2009 over the Pacific Ocean by the MODIS instrument on NASA's Terra satellite. Inspired by ship-tracks, some scientists have suggested deploying a network of floating buoys in the worlds' oceans that spray salt-aerosol containing sea-water into the air so that, with the help of the wind, streams of sunlight-reflecting clouds would also form. Why do this? These human-made clouds could reflect so much sunlight they might help fight global warming.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: nasa
To be added or removed from the Astronomy Picture of the Day ping list please send me a request via "Private Reply" (Mail).

For more detail go to the link and click on the image for a high definition image. You can then move the magnifying glass cursor then click to zoom in and click again to zoom out. When zoomed in you can scan by moving the side bars on the bottom and right side of the image.

1 posted on 06/08/2022 3:43:59 PM PDT by MtnClimber
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To: MtnClimber

2 posted on 06/08/2022 3:44:16 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: 21stCenturion; 21twelve; 4everontheRight; abb; AFB-XYZ; AFPhys; America_Right; AZ .44 MAG; ...
Pinging the APOD list.

๐Ÿช ๐ŸŒŸ ๐ŸŒŒ ๐Ÿ”


3 posted on 06/08/2022 3:44:55 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: MtnClimber

GlowBull warming? Please stick to educating muslims about their leadership in science or... contributions to kabooms.


4 posted on 06/08/2022 3:47:02 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: MtnClimber

I knew it. Reverse contrails!


5 posted on 06/08/2022 3:48:46 PM PDT by Larry Lucido (Donate! Don't just post clickbait!)
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To: MtnClimber
They happen when conditions for low cloud formation are very favorable, but lack condensation nuclei.

This is fairly common in the relatively stable subtropical high pressure areas.

It is a similar phenomena to contrails.

The ship exhaust provides the condensation nuclei.

6 posted on 06/08/2022 4:13:54 PM PDT by marktwain
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To: MtnClimber

I think that explanation is a crock. The writer seems to have misunderstood something. The exhast of steam powered ships comes out of their exhaust stacks high above the water. Nuclear powered ones have no exhaust, per se. I believe what those trails in the water are showing are the trails of aerated water made by the ships’ screws churning the water, propelling the vessel on its way.


7 posted on 06/08/2022 4:21:52 PM PDT by Tucker39 ("It is impossible so to rightly govern a nation without God and the Bible." George Washington )
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To: MtnClimber

Look more like contrails to me. Can’t tell if they are at an elevation of a few hundred feet or several miles.


8 posted on 06/08/2022 4:22:20 PM PDT by JimRed (TERM LIMITS, NOW! Militia to the border! TRUTH is the new HATE SPEECH.)
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To: MtnClimber

“These human-made clouds could reflect so much sunlight they might help fight global warming.”

Great plan. Our April and May here in the Inland Northwest were about NINE degrees below normal in April and May. Spring is very late arriving here, too. Nothing but wet and cold.

At least this crackpot scheme would be reversible if they shut off the mid-ocean seawater aerosol generators.


9 posted on 06/08/2022 4:22:29 PM PDT by ProtectOurFreedom (Wanting to make America great isnโ€™t an insult unless youโ€™re trying to make it worse! ULTRAMAGA!!)
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To: MtnClimber

10 posted on 06/08/2022 5:44:22 PM PDT by DannyTN (`)
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To: Tucker39

“Steam powered ships”???

Virtually all diesel other than a few gas turbine and nuke.


11 posted on 06/08/2022 7:01:37 PM PDT by doorgunner69 (Let's go Brandon)
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To: doorgunner69

Fine! You’re obscuring my point with facts that while perhaps true, don’t change my point. Which is that I do NOT believe those trails in the water were made by the exhaust of the ship’s source of power. They were made by the propellars that push the vessel through the water.


12 posted on 06/08/2022 7:22:28 PM PDT by Tucker39 ("It is impossible so to rightly govern a nation without God and the Bible." George Washington )
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To: MtnClimber

View ship traffic in the worlds oceans.
https://www.marinetraffic.com/en/ais/home/centerx:-12.0/centery:24.9/zoom:4


13 posted on 06/08/2022 7:30:38 PM PDT by minnesota_bound (Need more money to buy everything now)
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