georefid:2004-010544SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.1007/s00382-002-0279-z<gco:CharacterString>The spectral description of climate change including the 100 ky energy</gco:CharacterString>2003-01-01publicationgeorefid:2004-010544doi:10.1007/s00382-002-0279-zWunsch, C.Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United StatesauthorSpringer-Verlag, Heidelberg, Federal Republic of GermanypublisherdocumentHardcopyClimate Dynamics20 (4)353-363Core records, both ice and deep-sea, suggest that the dominant character is that of a red-noise process or random walk. Examination of a few typical records supports the inference that the contribution of the Milankovitch frequencies to climate change at most represents only a small fraction of total climate variance. A broad maximum near 100 ky period can be readily rationalized without invoking an oscillator. One need only suppose that there is an approximate threshold beyond which the climate system collapses. Changes in the forcing intensity would lead to a shift in the dominant time scale. (modif. j. abstr.)completedQuaternary geologyAntarctic ice sheetAntarcticaCenozoicclimate changecoresEquatorial PacificHoloceneice coresisotope ratiosisotopesLeg 111marine sedimentsMilankovitch theoryO-18/O-16Ocean Drilling ProgramODP Site 677oxygenPacific OceanQuaternarysedimentsstable isotopesstochastic processesupper HoloceneVostok Stationurn:org.iodp:exp:111urnlargerWorkCitationcampaignurn:org.iodp:exp:111:site:677urnlargerWorkCitationstudyurn:org.iodp:exp:111urnlargerWorkCitationcampaignEnglishgeoscientificInformation-83.4414-83.44131.12031.1209