简介：Icecoreδ18OrecordefromtheNo.aglacierattheheadoftheUrumqiRiverwereusedocharacterizetherelationshipbetweenδ18Oandcontemporaneoussurfaceairtemperature(Ta)nearbytheDaxigouMeteorologicalStation(3539mabovesealevel,-2kmawayfromtheicecoredrillingsite),Althoughtheicecorerecordsofannuallyaveragedδ18Oarepositivelycorrelatedwithconemporaneoussurfaceairtemperature,especiallysummerairtemperature,thecorrelationislesssignificantthanthatfortheprecipitationsamplesduetodepositionalandpost-depositionalmodificationprocesses,However,theClimatologicalsignificanceoftheicecorδ18Orecordscanbestillpreservedtoacertaindegree,whichmoghtextendtheapplicationofhighaltitudeandsub-tropicalicecoreδ18Orecordstopaleoclimatereconstruction.

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