{"refrec":{"BRefID":302278,"RR":"<b>Yasuda, I.</b> (2018). Impact of the astronomical lunar 18.6-yr tidal cycle on El-Niño and Southern Oscillation. <i>NPG Scientific Reports 8(1)</i>: 7 pp. <a href=\"https://dx.doi.org/10.1038/s41598-018-33526-4\" target=\"_blank\">https://dx.doi.org/10.1038/s41598-018-33526-4</a>","BEntID":294522,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>NPG Scientific Reports 8(1)</i>: 7 pp. <a href=\"https://dx.doi.org/10.1038/s41598-018-33526-4\" target=\"_blank\">https://dx.doi.org/10.1038/s41598-018-33526-4</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Yasuda, I.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Yasuda, I.","Englishabstract":"Even though El-Niño and Southern Oscillation (ENSO) has a tremendous impact on global climate and society, its long-term forecast remains difficult. In this study, we discovered a statistically significant relationship between ENSO timing and the 18.6-year period lunar tidal cycle in the mature-phase (December–February) ENSO time-series during 1867–2015 and extending back to 1706 with proxy data. It was found that El-Niño tended to occur in the 1st, 10th, and 13th years after the maximum diurnal tide in the 18.6-yr cycle, and La-Niña tended to occur in the 3rd, 12th, and 16th years. These tendencies were also confirmed by corresponding sea-surface temperature (SST) and sea-level pressure (SLP) distributions; particularly Pacific SST and SLP spatial patterns in the third La-Niña and the tenth El-Niño year well resemble those of Pacific Decadal Oscillation (PDO). These findings contribute to understanding and forecasting long-term ENSO variability.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Impact of the astronomical lunar 18.6-yr tidal cycle on El-Niño and Southern Oscillation","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-10 01:32:18.570937","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2018,"MonPub":null,"DateUpdate":"2018-10-19","DateCreate":"2018-10-19","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000447125400028","VABBcode":null,"OpenAcc":1,"DOI":"10.1038/s41598-018-33526-4"},"refs":null,"anarec":{"AnaID":302278,"PubliDate":2018,"Pagination":"7 pp","XtraPublOfAnaID":null,"ISBN":null,"Volume":"8","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":208093,"SerRR":"Scientific Reports (Nature Publishing Group). 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