{"refrec":{"BRefID":141572,"RR":"<b>Franco, L.; Geeraerts, J.; Briganti, R.; Willems, M.; Bellotti, G.; De Rouck, J.</b> (2009). Prototype measurements and small-scale model tests of wave overtopping at shallow rubble-mound breakwaters: the Ostia-Rome yacht harbour case. <i>Coast. Eng. 56(2)</i>: 154-165. <a href=\"https://dx.doi.org/10.1016/j.coastaleng.2008.03.009\" target=\"_blank\">https://dx.doi.org/10.1016/j.coastaleng.2008.03.009</a>","BEntID":134869,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Coast. Eng. 56(2)</i>: 154-165. <a href=\"https://dx.doi.org/10.1016/j.coastaleng.2008.03.009\" target=\"_blank\">https://dx.doi.org/10.1016/j.coastaleng.2008.03.009</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Franco, L.; Geeraerts, J.; Briganti, R.; Willems, M.; Bellotti, G.; De Rouck, J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Franco, L. <i>et al.</i>","Englishabstract":"The paper presents the comparison between the results of small-scale model tests and prototype measurements of wave overtopping at a rubble-mound breakwater. The specific structure investigated is the west breakwater of the yacht harbour of Rome at Ostia (Italy) and is characterized by a gentle seaward slope (1/4) and by a long, shallow foreshore. The laboratory tests firstly aimed at carefully reproducing two measured storms in which overtopping occurred and was measured. The tests have been carried out in two independent laboratories, in a wave flume and in a wave basin, hence using a two-dimensional (2-D) and a three-dimensional (3-D) setup. In the 2-D laboratory tests no overtopping occurred during the storm reproductions; in the 3-D case discharges five to ten times smaller than those observed in prototype have been measured. This indicates the existence of model and scale effects. These effects have been discussed on the basis of the results of several parametric tests, which have been carried out in both laboratories, in addition to the storm reproductions, varying wave and water level characteristics. Final comparison of all the performed tests with 86 prototype measurements still suggests the existence of scale and model effects that induce strong underestimation of overtopping discharge at small scale. The scale reproduction of wave breaking on the foreshore, together with the 3-D features of the prototype conditions and the absence of wind stress in the laboratory measurements, have been individuated as the main sources of scale and model effects. The paper also provides a comparison between the data and a largely used formula for wave overtopping discharges in the presence of structures similar to the one at hand. The suitable value of a roughness factor that appears in that formula is investigated and good agreement is found with other recent researches on rubble-mound breakwaters.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Prototype measurements and small-scale model tests of wave overtopping at shallow rubble-mound breakwaters: the Ostia-Rome yacht harbour case","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-17 01:41:05.351938","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Wave overtopping; Laboratory tests; Field measurements; Rubble-mound breakwaters","OtherDescriptors":null,"Notes":null,"AnaPub":2009,"MonPub":null,"DateUpdate":"2018-04-06","DateCreate":"2009-10-14","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000263999600005","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.coastaleng.2008.03.009"},"refs":null,"anarec":{"AnaID":141572,"PubliDate":2009,"Pagination":"154-165","XtraPublOfAnaID":null,"ISBN":null,"Volume":"56","Issue":"2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":203120,"SerRR":"Coastal Engineering: An International Journal for Coastal, Harbour and Offshore Engineers. Elsevier: Amsterdam; Lausanne; New York; Oxford; Shannon; Tokyo.  ISSN 0378-3839; e-ISSN 1872-7379","StandardTitleSer":"Coastal Engineering: An International Journal for Coastal, Harbour and Offshore Engineers","ISSN":"0378-3839","AbbrevSer":"Coast. 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