Timeline for Why are there waves in seas towards shore - even in night?
Current License: CC BY-SA 4.0
13 events
| when toggle format | what | by | license | comment | |
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| Feb 14, 2020 at 23:00 | comment | added | Peter - Reinstate Monica | @SemidiurnalSimon Well, the lower amplitude threshold of waves arriving at a shoreline is zero... | |
| Feb 14, 2020 at 21:37 | comment | added | Semidiurnal Simon | @Peter-ReinstateMonica eh, I guess if you're prepared to accept an infinitesimal wave size, then yes, there are always waves in every direction ;-) | |
| Feb 14, 2020 at 20:32 | comment | added | Peter - Reinstate Monica | @SemidiurnalSimon It seemed so obvious to me. The sea surface under wind and currents is a chaotic system; the notion that all waves go in one direction, or even that (for all wave frequencies) one direction is entirely excluded is very far-fetched. Yes, there are calm seas, and there are calm days at the beach, but you'll always have some surface movement. | |
| Feb 14, 2020 at 20:24 | comment | added | Semidiurnal Simon | @Peter-ReinstateMonica I don't question the idea that wind waves can come from multiple directions. I'm just a bit skeptical about the idea that every location has an "omnidirectional background" that is always there.I mean, sometimes it's calm! And as you yourself noted, there won't be much wave energy going off a beach due to lack of fetch. But possibly we're arguing about wording rather than concepts, and it doesn't feel important to the question :-) | |
| Feb 14, 2020 at 16:44 | comment | added | Peter - Reinstate Monica | @SemidiurnalSimon The study I linked has text and nice images detailing the omni- (or at least multi-) directionality of wind waves. | |
| Feb 14, 2020 at 15:58 | comment | added | Semidiurnal Simon | Yeah, I'd like to see a citation for "omnidirectional background noise". Yes, there will be waves in many directions in many places with deep water, but they all originate somewhere. As you've largely identified elsewhere in the answer, the important things for answering this question are (a) that waves don't necessarily relate to local wind, and (b) that we won't see wind waves going offshore as they'd have zero fetch | |
| Feb 14, 2020 at 11:48 | comment | added | user1066 | Certainly not disputed but for people who want to foray into this field just some introduction would be helpful | |
| Feb 14, 2020 at 11:44 | history | edited | Peter - Reinstate Monica | CC BY-SA 4.0 |
added 298 characters in body
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| Feb 14, 2020 at 11:33 | comment | added | Peter - Reinstate Monica | @gansub The opinion median seemed to be around "reference needed if disputed". Do you? In that case the result of a google image search for sea surface may convince you. | |
| Feb 14, 2020 at 11:28 | comment | added | user1066 | earthscience.meta.stackexchange.com/questions/1818/… | |
| Feb 14, 2020 at 11:22 | comment | added | Peter - Reinstate Monica | @gansub Have you ever been on sea? | |
| Feb 14, 2020 at 10:51 | comment | added | user1066 | please add a source for "Waves in the open sea are a mix — a superposition — of waves in different directions." | |
| Feb 14, 2020 at 10:34 | history | answered | Peter - Reinstate Monica | CC BY-SA 4.0 |