by APOD Robot » Wed Jun 08, 2022 4:05 am
Ship Tracks over the Pacific Ocean
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.
[url=https://apod.nasa.gov/apod/ap220608.html] [img]https://apod.nasa.gov/apod/calendar/S_220608.jpg[/img] [size=150]Ship Tracks over the Pacific Ocean[/size][/url]
[b] Explanation: [/b] What are those unusual streaks? Some images of [url=https://apod.nasa.gov/apod/ap220206.html]planet Earth[/url] show clear bright streaks that follow the paths of ships. Known as [url=https://en.wikipedia.org/wiki/Ship_tracks]ship tracks[/url], these low and narrow bands are caused by the [url=https://youtu.be/SSo0fb0JQZA]ship's engine[/url] exhaust. [url=https://earthobservatory.nasa.gov/global-maps/MYDAL2_M_SKY_WV]Water vapor[/url] condenses around small bits of exhaust known as [url=https://en.wikipedia.org/wiki/Aerosol]aerosols[/url], which soon grow into floating water drops that efficiently [url=https://apod.nasa.gov/apod/ap220327.html]reflect sunlight[/url]. Ship tracks were [url=https://journals.ametsoc.org/view/journals/atsc/23/6/1520-0469_1966_023_0778_acl_2_0_co_2.xml]first discovered[/url] in 1965 in [url=https://earthobservatory.nasa.gov/images]Earth images[/url] taken by NASA's [url=https://www.nasa.gov/feature/goddard/2019/launch-of-tiros-1-worlds-1st-weather-satellite-this-week-in-goddard-history-march-31-april-6]TIROS satellites[/url]. Multiple [url=http://www.sciencebits.com/ship_tracks]ship tracks[/url] are visible across the [url=https://earthobservatory.nasa.gov/images/37455/ship-tracks-south-of-alaska]featured image[/url] that was captured in 2009 over the [url=https://en.wikipedia.org/wiki/Pacific_Ocean]Pacific Ocean[/url] by the [url=https://en.wikipedia.org/wiki/Moderate_Resolution_Imaging_Spectroradiometer]MODIS[/url] instrument on NASA's [url=https://en.wikipedia.org/wiki/Terra_(satellite)]Terra[/url] satellite. Inspired by ship-tracks, some [url=https://royalsocietypublishing.org/doi/10.1098/rsta.2012.0086]scientists have suggested[/url] deploying a network of floating [url=https://en.wikipedia.org/wiki/Buoy]buoy[/url]s in the [url=https://www.nasa.gov/specials/ocean-worlds/]worlds' oceans[/url] that spray [url=https://en.wikipedia.org/wiki/Sea_salt_aerosol]salt-aerosol[/url] containing sea-water into the air so that, with the help of the wind, streams of [url=https://en.wikipedia.org/wiki/Marine_cloud_brightening]sunlight-reflecting[/url] [url=https://en.wikipedia.org/wiki/Marine_stratocumulus]clouds[/url] would also form. [url=https://cdn2.hubspot.net/hubfs/532826/Blog_Images/Dogs-tilting-their-heads.jpg]Why[/url] do this? These human-made clouds could [url=https://nap.nationalacademies.org/catalog/25762/reflecting-sunlight-recommendations-for-solar-geoengineering-research-and-research-governance]reflect so much[/url] [url=https://csl.noaa.gov/research/erb/]sunlight[/url] they might help fight [url=https://climate.nasa.gov/resources/global-warming-vs-climate-change/]global warming[/url].
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