{"refrec":{"BRefID":367910,"RR":"<b>Lachniet, M.S.; Du, X.; Dee, S.G.; Asmerom, Y.; Polyak, V.J.; Tobin, B.W.</b> (2023). Elevated Grand Canyon groundwater recharge during the warm Early Holocene. <i>Nature Geoscience 16(10)</i>: 915-921. <a href=\"https://dx.doi.org/10.1038/s41561-023-01272-6\" target=\"_blank\">https://dx.doi.org/10.1038/s41561-023-01272-6</a>","BEntID":365636,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Nature Geoscience 16(10)</i>: 915-921. <a href=\"https://dx.doi.org/10.1038/s41561-023-01272-6\" target=\"_blank\">https://dx.doi.org/10.1038/s41561-023-01272-6</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Lachniet, M.S.; Du, X.; Dee, S.G.; Asmerom, Y.; Polyak, V.J.; Tobin, B.W.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Lachniet, M.S. <i>et al.</i>","Englishabstract":"Summer rainfall is an important contributor to water budgets in western North American deserts, where intense rainfall sustains ecosystems while also causing flash floods and damaging erosion. A better understanding of Grand Canyon palaeoclimate and the long-term history of the summer monsoon from summer-sensitive palaeoclimate records will improve our ability to project future hydroclimatic changes under warmer conditions. Here we show multi-proxy evidence for an intensification of the Early Holocene (11,700–8,200 years ago) hydrological cycle linked to a stronger and expanded summer North American Monsoon from calcite oxygen and uranium isotopes in a uranium-series precisely dated stalagmite from a Grand Canyon cave. Our results suggest that subsurface infiltration was greater in the Early Holocene than today at Grand Canyon. A data–model comparison with an isotope-enabled climate model suggests that enhanced infiltration was due to an Early Holocene monsoon intensification associated with rising atmospheric temperature. Projections of a future increase in precipitation intensity or more frequent and expanded North American monsoon rain events may paradoxically result in increased subsurface infiltration at Grand Canyon and other high-altitude plateaus, even within the context of western North American aridification in a hotter climate.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Elevated Grand Canyon groundwater recharge during the warm Early Holocene","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2023,"MonPub":null,"DateUpdate":"2023-10-11","DateCreate":"2023-10-11","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:001078781600006","VABBcode":null,"OpenAcc":0,"DOI":"10.1038/s41561-023-01272-6"},"refs":null,"anarec":{"AnaID":367910,"PubliDate":2023,"Pagination":"915-921","XtraPublOfAnaID":null,"ISBN":null,"Volume":"16","Issue":"10","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":123796,"SerRR":"Nature Geoscience. 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