Based on the relationship between the tree-ring data series and summer(June to August) temperature from 1962 to 2001,about thousand year’s summer temperature in northeast of Qaidam Basin was retrieved by using the tree-ring chronology which developed from samples collected in Delingha and Wulan in western Qinghai.Using those methods just as the Mean Value of Product and the Reduction of Error,the retrieved series was proved through testing retrieved equation.The analyses show that seven major colder periods and six warmer periods existed in retrieved series in 1098 years.Fifteen major interrupt regions existed in retrieved temperature series.The cycle analyses show that the summer temperature series in northeast of Basin has longer periods of 46 years,52 years,61 years,73 years,91 years,183 years and 366 years,and shorter periods of 6.8 years and 2-3years.
ZHU Xi-De, WANG Zheng-Yu, LI lin, QIN Ning-Sheng, WANG Qing-Chun
. Summer Temperature in Northeast of Qaidam Basin Retrieved from Tree-Ring Chronology[J]. SCIENTIA GEOGRAPHICA SINICA, 2007
, 27(2)
: 256
-260
.
DOI: 10.13249/j.cnki.sgs.2007.02.256
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