https://wiki.seasteading.org/api.php?action=feedcontributions&user=LadySeasteader&feedformat=atomSeasteading - User contributions [en]2024-03-29T15:01:55ZUser contributionsMediaWiki 1.31.1https://wiki.seasteading.org/index.php?title=Main_Page&diff=8151Main Page2019-05-29T14:05:10Z<p>LadySeasteader: </p>
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<div>[[Image:ClubStead.jpg|right|275px]]<br />
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[[About the Seasteading Wiki]] describes the purpose of this website. If you want to contribute, which is greatly appreciated, there is a [[Tutorial|Quick tutorial]]. <br />
* If you'd like to help out the general cause, [https://www.seasteading.org/ambassadors/ Become an Ambassador].<br />
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* See [[Proposals]] on how to make your own ideas public.<br />
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* There are [[Seastead|several different visions of seasteads]] and strategies for making them happen.<br />
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{{Ocean Environment}}<br />
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{{The Market}}<br />
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<sup>[[Special:Statistics|{{NUMBEROFUSERS}}]] users have created [[Special:Statistics|{{NUMBEROFPAGES}}]] pages and [[Special:Statistics|{{NUMBEROFFILES}}]] files have been uploaded. [http://wiki.seasteading.org/index.php?title=Special:Userlogin&type=signup&returnto=Main_Page Want to help?]</sup></div>LadySeasteaderhttps://wiki.seasteading.org/index.php?title=Main_Page&diff=8150Main Page2019-05-29T14:02:59Z<p>LadySeasteader: </p>
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<div>[[Image:ClubStead.jpg|right|275px]]<br />
<br />
[[About the Seasteading Wiki]] describes the purpose of this website. If you want to contribute, which is greatly appreciated, there is a [[Tutorial|Quick tutorial]]. <br />
* If you'd like to help out the general cause, [https://www.seasteading.org/ambassadors/ Become an Ambassador].<br />
* Your opinion is wanted on these: [[List of all ideas and designs]].<br />
* Join the [https://discuss.seasteading.org/ Forum] and participate in discussions on Seasteading and related industries or ideas.<br />
* See [[Proposals]] on how to make your own ideas public.<br />
* Wiki [[Special:Listusers|user pages]] are a place where you can describe yourself and your concepts.<br />
* There are [[Seastead|several different visions of seasteads]] and strategies for making them happen.<br />
<br />
{{Ocean Environment}}<br />
{{Structure Designs}}<br />
{{Energy}} <br />
{{Infrastructure}} <br />
{{The Market}}<br />
<br />
<sup>[[Special:Statistics|{{NUMBEROFUSERS}}]] users have created [[Special:Statistics|{{NUMBEROFPAGES}}]] pages and [[Special:Statistics|{{NUMBEROFFILES}}]] files have been uploaded. [http://wiki.seasteading.org/index.php?title=Special:Userlogin&type=signup&returnto=Main_Page Want to help?]</sup></div>LadySeasteaderhttps://wiki.seasteading.org/index.php?title=Waves&diff=8146Waves2018-11-06T23:35:52Z<p>LadySeasteader: /* Describing Waves */</p>
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<div>[[Image:Whisprwave breakwater.jpg|thumb|The Palace of Westminster|200px|right|WhisprWave breakwater]]<br />
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* Excellent resource: [http://www.wikiwaves.org/index.php/Main_Page WikiWaves]<br />
* Some background on [http://en.wikipedia.org/wiki/Ocean_surface_wave ocean surface waves] and also [http://www.seafriends.org.nz/oceano/waves.htm waves for oceanographers]<br />
* More background [http://www.seafriends.org.nz/oceano/waves.htm here].<br />
* A lot of [http://www.artificialreefs.org/ScientificReports/Wave%20reduction.htm math on breakwaters] at artificialreefs.org.<br />
* [http://www.whisprwave.com/floating.htm Floating breakwaters] by WhisprWave. <br />
* [[Ecoboot|Clickets]]<br />
* [[Ecoboot|Opening and closing tubes]]<br />
* [http://www.freepatentsonline.com/3953977.pdf A moored device (Patent)]<br />
* A lot more patents at [http://www.freepatentsonline.com FreePatentsOnline] (free registration required to see pictures)<br />
* [http://en.wikipedia.org/wiki/Sea_state Wikipedia Sea state] - standard classifications for wave state<br />
* [http://en.wikipedia.org/wiki/Beaufort_scale Beaufort scale] - scale for wind and waves<br />
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==Describing Waves==<br />
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During the service life of an offshore structure, it will experience a huge number of waves, from very small wavelets to possibly giant waves. A practical way to describe these unceasingly changing waves<br />
is to divide them into various categories (sea states), and use short-term wave statistics to depict each sea state and long-term wave statistics, usually in the form of a wave scatter diagram and rosette, to<br />
delineate the rate at which a sea state occurs.<br />
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In a similar way, there are two levels in the description of wave directionality, i.e., wave directional spectrum or wave spreading for short-term, and wave rosette for long-term, respectively. <br />
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See Section 3 of [https://ww2.eagle.org/content/dam/eagle/rules-and-guides/archives/offshore/104_sfaforfloatingoffshorestructures/pub104_offshoresfa_guide.pdf ABS GUIDANCE NOTES ON SPECTRAL-BASED FATIGUE ANALYSIS FOR FLOATING OFFSHORE STRUCTURES . 2005] for further discussion of Wave measurement.<br />
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Map of wave heights:<br />
https://static1.squarespace.com/static/57070436f699bbcfa154423d/t/583b353b725e257a97db2cfe/1480275484044/?format=750w<br />
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==Rogue Waves==<br />
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"There really is no such thing as a rogue wave. These larger than normal seas are the result of two wave trains coinciding at just the right moment for their energy to combine. When this happens the higher-than-normal crest is exposed to more wind force and absorbs additional energy. And if the wave happens to be unstable and breaks - because the rotating particles within the wave can no longer make it over the top - there will be a large mass of water falling downhill."<br />
From "Surviving the Storm" by Steve & Linda Dashew, page 241.<br />
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==See also==<br />
* [[Wave Power]]<br />
* [[Big wave videos]]<br />
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[[Category:Engineering Data]]<br />
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<gallery widths=400 heights=400 caption="Rogue waves"><br />
Image:Rogue wave.jpg<br />
Image:Rogue wave2.jpg<br />
</gallery><br />
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{{Ocean Environment}}</div>LadySeasteader