{"id":628474,"date":"2026-09-18T11:18:20","date_gmt":"2026-09-18T11:18:20","guid":{"rendered":"https:\/\/www.newsbeep.com\/ie\/628474\/"},"modified":"2026-09-18T11:18:20","modified_gmt":"2026-09-18T11:18:20","slug":"saturn-moon-titan-has-huge-lakes-with-winds-similar-to-earth","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/ie\/628474\/","title":{"rendered":"Saturn moon Titan has huge lakes with winds similar to Earth"},"content":{"rendered":"

One of the most stunning discoveries delivered by NASA\u2019s Cassini probe<\/a> to the Saturn system was that its moon Titan hosts a number of lakes (confirming evidence from the Hubble Space Telescope<\/a>).<\/p>\n

Titan<\/a> is a giant moon with a thick atmosphere, and had long been suspected to offer appropriate conditions for bodies of liquid methane and ethane on its surface.<\/p>\n

The largest of Titan’s lakes, Cassini found, range from hundreds of kilometres to over 1,100km in length, and so are referred to as seas.<\/p>\n

The probe also spotted hundreds of other smaller lakes, ranging from just a few kilometres to 240km. <\/p>\n

Some of these bodies exhibit intricate shorelines, and many cluster together near the north pole: a Titanic Lake District.<\/p>\n

\"Saturn'sSaturn’s moon Titan has its own ‘Lake District’. Credit: Joe Daniel Price \/ Getty<\/p>\n

Seas and large lakes on Earth affect the local wind conditions.<\/p>\n

They take longer than the land to warm up and cool down on a day-to-night cycle, as well as over the seasons, and evaporation from their surface also affects heat transfer.<\/p>\n

The temperature differentials created by these factors generate either onshore or offshore winds.<\/p>\n

So a natural question arises: how do Titan\u2019s large methane lakes affect the moon\u2019s winds?<\/p>\n

Previous studies have explored this with 2D models, but Audrey Chatain at the Department of Space Studies, Southwest Research Institute<\/a> (SwRI) in Boulder, Colorado, and her colleagues, improved on these efforts by simulating atmospheric movements around Titan\u2019s lakes in all three dimensions.<\/p>\n

Chatain\u2019s models show that although the conditions on Titan and Earth are extremely different, the breezes formed around Titan\u2019s lakes are actually broadly similar to those on Earth in terms of the extent of the winds above the surface and how far inland they penetrate.<\/p>\n

\"Artist\u2019sArtist\u2019s concept of a lake at the north pole of Saturn\u2019s moon Titan. Credit: NASA\/JPL-Caltech<\/p>\n

Her team also found that these surface winds are strongest around the edges of the largest seas, and for lakes nearer the equator during summer, as would have been expected.<\/p>\n

But even in these situations, Chatain calculates that these lake winds never exceed a very gentle breeze
of 0.2m\/s \u2013 far slower than analogous lake winds on Earth of around 5m\/s.<\/p>\n

She notes that even these strongest lake breezes on Titan would not be enough to create wind-driven waves on the moon\u2019s seas.<\/p>\n

Chatain\u2019s team also determined an evaporation rate from Titan\u2019s lakes of around 6cm per Earth year,
which is far lower than the values of 20\u201350cm suggested by previous, simpler 2D models.\u00a0<\/p>\n

\"CassiniCassini took many images of Titan over its 13 year mission at Saturn. The mission ended on 15 September 2017, when it plunged into Saturn\u2019s atmosphere. Credit: NASA\/JPL-Caltech\/ASI<\/p>\n

Another new result from these 3D models is the formation of a stable layer of cold but moist air in the first few metres above the lakes.<\/p>\n

Chatain calculates that under these conditions the evaporating methane could reach saturation and condensation: Titanic sea fogs.\u00a0<\/p>\n

Overall, the winds on Titan are much weaker than those on Earth, so although far-future explorers may experience the singular pleasure of a boat ride on liquid hydrocarbon seas, they\u2019d struggle to go sailing.<\/p>\n

More images of Titan
\n\"LikeA view of Titan captured by the Cassini probe. Titan’s atmosphere is seen here as a hazy blue outline around the moon\u2019s limb. To the upper left of Titan is Tethys, another of Saturn\u2019s moons. Credit: Cassini Imaging Team, ISS, JPL, ESA, NASA
\n\"AnAn unprocessed image of Saturn’s moon Titan taken during Cassini\u2019s final close flyby of the moon, 22 April 2017.Credit: NASA\/JPL-Caltech\/Space Science Institute
\n\"AA Cassini image showing Titan, Saturn\u2019s largest moon, behind the planet\u2019s rings. The smaller moon Epimetheus can be seen in the foreground. Image Credit: NASA\/JPL\/Space Science Institute
\n\"MethaneMethane clouds drift across Titan\u2019s summer skies in this Cassini image. The darker patches are hydrocarbon lakes.
Credit: NASA\/JPL-Caltech\/Space Science Institute
\n\"MoonMoon Titan appears in front of Saturn in an image captured by NASA\u2019s Cassini spacecraft. Credit:\u00a0NASA\/JPL-Caltech\/Space Science Institute
\n\"Near-infraredNear-infrared colour mosaic of Titan\u2019s north pole showing the sunlight reflecting off its seas. Credit: NASA\/JPL-Caltech\/Univ. Arizona\/Univ. Idaho
\n\"ViewsViews of Titan\u2019s surface as seen by the Huygens lander during its descent onto the surface of the icy moon, 14 January 2005. Credit: ESA\/NASA\/JPL\/University of Arizona
\n\"AnAn image of Titan captured by the Cassini spacecraft on July 2009. The bright spot at the top of Titan\u2019s disc is sunlight reflecting off the surface of a hydrocarbon lake. Credit:\u00a0NASA\/JPL\/University of Arizona\/DLR<\/p>\n

Lewis Dartnellwas reading The Impact of Lake Shape and Size on Lake Breezes and Air\u2013Lake Exchanges on Titan by Audrey Chatain et al. Read it online at: arxiv.org\/abs\/2309.07042<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"One of the most stunning discoveries delivered by NASA\u2019s Cassini probe to the Saturn system was that its…\n","protected":false},"author":2,"featured_media":628475,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[61,60,82],"class_list":["post-628474","post","type-post","status-publish","format-standard","has-post-thumbnail","category-science","tag-ie","tag-ireland","tag-science"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/628474","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/comments?post=628474"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/628474\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media\/628475"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media?parent=628474"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/categories?post=628474"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/tags?post=628474"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}