globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-016-3273-6
Scopus记录号: 2-s2.0-84979240872
论文题名:
Are Karakoram temperatures out of phase compared to hemispheric trends?
作者: Asad F.; Zhu H.; Zhang H.; Liang E.; Muhammad S.; Farhan S.B.; Hussain I.; Wazir M.A.; Ahmed M.; Esper J.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2017
卷: 48, 期:2017-09-10
起始页码: 3381
结束页码: 3390
语种: 英语
英文关键词: Climate variability ; Dendrochronology ; Karakoram Anomaly ; Paleoclimate ; Tree rings
英文摘要: In contrast to a global retreating trend, glaciers in the Karakoram showed stability and/or mass gaining during the past decades. This “Karakoram Anomaly” has been assumed to result from an out-of-phase temperature trend compared to hemispheric scales. However, the short instrumental observations from the Karakoram valley bottoms do not support a quantitative assessment of long-term temperature trends in this high mountain area. Here, we presented a new April–July temperature reconstruction from the Karakoram region in northern Pakistan based on a high elevation (~3600 m a.s.l.) tree-ring chronology covering the past 438 years (AD 1575–2012). The reconstruction passes all statistical calibration and validation tests and represents 49 % of the temperature variance recorded over the 1955–2012 instrumental period. It shows a substantial warming accounting to about 1.12 °C since the mid-twentieth century, and 1.94 °C since the mid-nineteenth century, and agrees well with the Northern Hemisphere temperature reconstructions. These findings provide evidence that the Karakoram temperatures are in-phase, rather than out-of-phase, compared to hemispheric scales since the AD 1575. The synchronous temperature trends imply that the anomalous glacier behavior reported from the Karakoram may need further explanations beyond basic regional thermal anomaly. © 2016, Springer-Verlag Berlin Heidelberg.
资助项目: NSFC, National Natural Science Foundation of China ; NSFC, National Natural Science Foundation of China ; NSFC, National Natural Science Foundation of China
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53227
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作者单位: Key Laboratory of Alpine Ecology and Biodiversity, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, No. 16 Lincui Road, Chaoyang District, Beijing, China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, China; Pakistan Space and Upper Atmosphere Research Commission, SUPARCO Headquarters, SUPARCO Road, P.O. Box No. 8402, Karachi, Pakistan; Botany Department, Federal Urdu University of Arts, Science and Technology, Gulshan-e-Iqbal, Karachi, Pakistan; Department of Earth and Environmental Systems, Indiana State University, Science 159E, Terre Haute, IN, United States; Department of Geography, Johannes Gutenberg University, Mainz, Germany

Recommended Citation:
Asad F.,Zhu H.,Zhang H.,et al. Are Karakoram temperatures out of phase compared to hemispheric trends?[J]. Climate Dynamics,2017-01-01,48(2017-09-10)
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