{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,28]],"date-time":"2025-09-28T20:49:26Z","timestamp":1759092566156},"reference-count":9,"publisher":"World Scientific Pub Co Pte Lt","issue":"08","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Bifurcation Chaos"],"published-print":{"date-parts":[[2014,8]]},"abstract":"<jats:p> In the Pliocene (about two\u2013five million years ago) global climate fluctuated with a period corresponding well to the 41-thousand-year cycle of changes in the Earth's axis obliquity. Then, this period disappeared, despite the fact that the obliquity cycle even slightly increased its swing and, therefore, the climatic response to this external climate forcing would have only strengthened. By analyzing paleoclimatic records covering the whole Pliocene and Pleistocene epoch, we show that the climatic response to the obliquity cycle simply became unstable, and therefore unobservable. At the same time, through the period-doubling bifurcation, which is well-known in dynamical system theory, new stable, and so observable, climatic fluctuations have been excited with an approximately doubled period. Further, these fluctuations experienced several secondary bifurcations, and, as a result, their periods increased even more. <\/jats:p>","DOI":"10.1142\/s0218127414400185","type":"journal-article","created":{"date-parts":[[2014,8,29]],"date-time":"2014-08-29T08:35:53Z","timestamp":1409301353000},"page":"1440018","source":"Crossref","is-referenced-by-count":2,"title":["On Bifurcations Inducing Glacial Cycle Lengthening During Pliocene\/Pleistocene Epoch"],"prefix":"10.1142","volume":"24","author":[{"given":"N. N.","family":"Ivashchenko","sequence":"first","affiliation":[{"name":"Hydrometeorological Research Centre of Russia, Bolshoy Predtechensky Lane 11\/13, Moscow 123242, Russian Federation"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"V. M.","family":"Kotlyakov","sequence":"additional","affiliation":[{"name":"Institute of Geography, RAS, Staromonetny Lane 29, Moscow 119017, Russian Federation"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D. M.","family":"Sonechkin","sequence":"additional","affiliation":[{"name":"P. P. Shirshov Oceanology Institute, RAS, Nakhimovsky Avenue, 36, Moscow 117997, Russian Federation"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"N. V.","family":"Vakulenko","sequence":"additional","affiliation":[{"name":"P. P. Shirshov Oceanology Institute, RAS, Nakhimovsky Avenue, 36, Moscow 117997, Russian Federation"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"219","published-online":{"date-parts":[[2014,8,29]]},"reference":[{"key":"rf1","doi-asserted-by":"publisher","DOI":"10.1142\/6006"},{"key":"rf2","doi-asserted-by":"publisher","DOI":"10.1126\/science.1125249"},{"key":"rf3","first-page":"9","volume":"1","author":"Ivashchenko N. N.","year":"2013","journal-title":"Global Perspect. Geograph."},{"key":"rf4","first-page":"PA1003","volume":"20","author":"Lisiecki L. E.","year":"2005","journal-title":"Paleoceanography"},{"key":"rf5","first-page":"337","volume":"138","author":"Shackleton N. J.","year":"1995","journal-title":"Proc. Ocean Drill Progr. Sci. Results"},{"key":"rf6","first-page":"73","volume":"138","author":"Shackleton N. J.","year":"1995","journal-title":"Proc. Ocean Drill Progr. Sci. Results"},{"key":"rf7","doi-asserted-by":"publisher","DOI":"10.1175\/1520-0477(1998)079<0061:APGTWA>2.0.CO;2"},{"key":"rf8","doi-asserted-by":"publisher","DOI":"10.1134\/S1028334X11020115"},{"key":"rf9","doi-asserted-by":"publisher","DOI":"10.1134\/S1028334X13090067"}],"container-title":["International Journal of Bifurcation and Chaos"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.worldscientific.com\/doi\/pdf\/10.1142\/S0218127414400185","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,8,6]],"date-time":"2019-08-06T20:32:49Z","timestamp":1565123569000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.worldscientific.com\/doi\/abs\/10.1142\/S0218127414400185"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,8]]},"references-count":9,"journal-issue":{"issue":"08","published-online":{"date-parts":[[2014,8,29]]},"published-print":{"date-parts":[[2014,8]]}},"alternative-id":["10.1142\/S0218127414400185"],"URL":"https:\/\/doi.org\/10.1142\/s0218127414400185","relation":{},"ISSN":["0218-1274","1793-6551"],"issn-type":[{"value":"0218-1274","type":"print"},{"value":"1793-6551","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014,8]]}}}