Editing Rogue wave (section)

=== Research on cross-swell waves and their contribution to rogue wave studies ===
Before the Draupner wave was recorded in 1995, early research had already made significant strides in understanding extreme wave interactions. In 1979, Dik Ludikhuize and Henk Jan Verhagen at [[Delft University of Technology|TU Delft]] successfully generated cross-swell waves in a wave basin. Although only monochromatic waves could be produced at the time, their findings, reported in 1981, showed that individual wave heights could be added together even when exceeding breaker criteria. This phenomenon provided early evidence that waves could grow significantly larger than anticipated by conventional theories of wave breaking.<ref>{{Cite journal |last1=Ludikhuize |first1=D. |last2=Verhagen |first2=H.J. |date=1981 |title=Cross-swell: A comparison of mathematical derivations with the results of laboratory tests |url=https://repository.tudelft.nl/record/uuid:525da0fd-09ba-40f2-88c6-22faf17ae4b7 |journal=TU Delft Reports |access-date=18 October 2024 |via=[[Delft University of Technology]]}}</ref>

This work highlighted that in cases of crossing waves, wave steepness could increase beyond usual limits. Although the waves studied were not as extreme as rogue waves, the research provided an understanding of how multidirectional wave interactions could lead to extreme wave heights - a key concept in the formation of rogue waves. The crossing wave phenomenon studied in the Delft Laboratory therefore had direct relevance to the unpredictable rogue waves encountered at sea.<ref>{{cite thesis | last1 = Ludikhuize | first1 = D. | last2 = Verhagen | first2 = H.J. | last3 = Bijker | first3 = E.W. | title = Bengkulu Harbour Project | date = 1978 | type = Master's thesis | department = Hydraulic Engineering (CEG) | publisher = [[TU Delft]] | url = http://resolver.tudelft.nl/uuid:b7a0999d-2c4a-42af-96d0-1070087d1452 | access-date = 18 October 2024}}</ref>

Research published in 2024 by TU Delft and other institutions has subsequently demonstrated that waves coming from multiple directions can grow up to four times steeper than previously imagined.<ref>{{Cite journal |last1=McAllister |first1=M. L. |last2=Draycott |first2=S. |last3=Calvert |first3=R. |last4=Davey |first4=T. |last5=Dias |first5=F. |last6=van den Bremer |first6=T. S. |date=2024 |title=Three-dimensional wave breaking |journal=Nature |language=en |volume=633 |issue=8030 |pages=601–607 |doi=10.1038/s41586-024-07886-z |pmid=39294351 |issn=1476-4687 |pmc=11410657 |bibcode=2024Natur.633..601M }}</ref>