Igiyoyin ruwa

A cikin sauye-sauyen ruwa, igiyar iska, ko igiyar ruwa da ke haifar da iska, ita ce igiyar ruwan saman da ke faruwa a saman jikin ruwa kyauta sakamakon iskar da ke kada saman ruwan. Nisan tuntuɓar hanyar iskar ana kiranta da ɗauko. Taguwar ruwa a cikin teku na iya tafiya dubban kilomita kafin isa ga kasa. Taguwar iska a duniya tana da girman girmanta daga kananan ripples zuwa taguwar ruwa sama da 30 m (100 ft) tsayi, ana iyakance shi da saurin iska, tsawon lokaci, debo, da zurfin ruwa.Tolman, H. L. (23 June 2010). Mahmood, M.F. (ed.). CBMS Conference Proceedings on Water Waves: Theory and Experiment (PDF). Howard University, US, 13–18 May 2008: World Scientific Publications. ISBN 978-981-4304-23-8.

Lokacin da iskar gida ta haifar da tasiri kai tsaye, ana kiran tsarin igiyar iska ta iska. Raƙuman ruwan iska za su yi tafiya a cikin babbar hanyar da'irar bayan an samar da su - suna ɗan lanƙwasa hagu a cikin kudanci da ɗan dama a arewacin kogin. Bayan an tashi daga yankin da iskar ta daina shafa, ana kiran raƙuman iskar ta kumbura kuma suna iya tafiyar dubban kilomita. Babban misali na wannan shi ne raƙuman ruwa da aka haifar a kudancin Tasmania a lokacin iska mai ƙarfi da za ta ratsa tekun Pasifik zuwa kudancin California, ta samar da yanayi na hawan igiyar ruwa.Holthuijsen (2007), page 5.[need quotation to verify]Iskar iska a cikin teku kuma ana kiranta da igiyar ruwan teku kuma galibin raƙuman ruwa ne, inda nauyi shine babban ƙarfin ma'auni.

Raƙuman iska suna da ƙayyadaddun adadin bazuwar: raƙuman ruwa na gaba sun bambanta da tsayi, tsawon lokaci, da siffa tare da iyakantaccen tsinkaya. Ana iya siffanta su a matsayin tsari na stochastic, a hade tare da ilimin kimiyyar lissafi da ke kula da tsararrakinsu, girma, yaduwa, da lalacewa - da kuma gudanar da haɗin kai tsakanin adadin kwarara kamar motsin ruwa, saurin gudu, da matsa lamba na ruwa. Mahimman ƙididdiga na raƙuman iska (duka tekuna da kumbura) a cikin jihohin teku masu tasowa za a iya annabta tare da nau'in igiyar iska.

Ko da yake galibi ana la'akari da raƙuman ruwa a cikin tekunan ruwa na Duniya, tekun hydrocarbon na Titan na iya samun raƙuman ruwa da iska ke motsawa.Lorenz, R. D.; Hayes, A. G. (2012). "The Growth of Wind-Waves in Titan's Hydrocarbon Seas". Icarus. 219 (1): 468–475. Bibcode:2012Icar..219..468L. doi:10.1016/j.icarus.2012.03.002.Barnes, Jason W.; Sotin, Christophe; Soderblom, Jason M.; Brown, Robert H.; Hayes, Alexander G.; Donelan, Mark; Rodriguez, Sebastien; Mouélic, Stéphane Le; Baines, Kevin H.; McCord, Thomas B. (2014-08-21). "Cassini/VIMS observes rough surfaces on Titan's Punga Mare in specular reflection". Planetary Science. 3 (1): 3. Bibcode:2014PlSci...3....3B. doi:10.1186/s13535-014-0003-4. ISSN 2191-2521. PMC 4959132. PMID 27512619.Heslar, Michael F.; Barnes, Jason W.; Soderblom, Jason M.; Seignovert, Benoît; Dhingra, Rajani D.; Sotin, Christophe (2020-08-14). "Tidal Currents Detected in Kraken Mare Straits from Cassini VIMS Sun Glitter Observations". The Planetary Science Journal. 1 (2): 35. arXiv:2007.00804. Bibcode:2020PSJ.....1...35H. doi:10.3847/PSJ/aba191. ISSN 2632-3338. S2CID 220301577. Hakanan ana iya haifar da igiyoyin ruwa a cikin jikunan ruwa ta wasu dalilai, duka a saman da ruwa (kamar jirgin ruwa, dabbobi, magudanar ruwa, zabtarewar ƙasa, girgizar ƙasa, kumfa, da abubuwan da suka faru).

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