Editing Lunar node (section)

==Effect on tides==
The [[lunar precession|precession]] of the lunar nodes has a small effect on Earth's [[Theory of tides|tides]] – [[Atmospheric tide|atmospheric]], [[Ocean tide|oceanic]], or [[Crustal tide|crustal]].<ref>Godin, G. (2015). The Use of Nodal Corrections in the Calculation of Harmonic Constants. The International Hydrographic Review, 63(2). Retrieved from https://journals.lib.unb.ca/index.php/ihr/article/view/23428</ref><ref name="KayeStuckey1973">{{cite journal|last1=Kaye|first1=Clifford A.|last2=Stuckey|first2=Gary W.|title=Nodal Tidal Cycle of 18.6 Yr.: Its Importance in Sea-Level Curves of the East Coast of the United States and Its Value in Explaining Long-Term Sea-Level Changes|journal=Geology|volume=1|issue=3|year=1973|pages=141|issn=0091-7613|doi=10.1130/0091-7613(1973)1<141:NTCOYI>2.0.CO;2|bibcode=1973Geo.....1..141K }}</ref>
The U.S. [[National Oceanic and Atmospheric Administration]] (NOAA) determines [[mean lower low water]] (MLLW) at a location by averaging the height of the lowest tide recorded at that location each day during a 19-year recording period, known as the National Tidal Datum Epoch.<ref>{{cite web |url=http://tidesandcurrents.noaa.gov/datum_options.html |title=Tidal Datums |work=Tides and Currents |publisher=[[NOAA]]}}</ref> The 19-year recording period is the nearest full-year count to the 18.6-year cycle of the lunar nodes.<ref>{{cite web |url=https://tidesandcurrents.noaa.gov/publications/tidal_datums_and_their_applications.pdf |title=Tidal Datums and Their Applications |work=Tides and Currents |publisher=[[NOAA]] (Special Publication NOS CO-OPS 1) |location=[[Silver Spring, Maryland]] |date=June 2000}}</ref>

In conjunction with [[sea level rise]] caused by [[Climate change|global warming]], lunar nodal precession is predicted to contribute to a rapid rise in the frequency of [[coastal flooding]] throughout the 2030s.<ref>{{Cite journal|last1=Thompson|first1=Philip R.|last2=Widlansky|first2=Matthew J.|last3=Hamlington|first3=Benjamin D.|last4=Merrifield|first4=Mark A.|last5=Marra|first5=John J.|last6=Mitchum|first6=Gary T.|last7=Sweet|first7=William|date=July 2021|title=Rapid increases and extreme months in projections of United States high-tide flooding|url=http://www.nature.com/articles/s41558-021-01077-8|journal=[[Nature Climate Change]]|language=en|volume=11|issue=7|pages=584–590|doi=10.1038/s41558-021-01077-8|bibcode=2021NatCC..11..584T |s2cid=235497055 |issn=1758-678X}}</ref>