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DOI	10.1007/s00382-016-3273-6
	Are Karakoram temperatures out of phase compared to hemispheric trends?
	Asad, Fayaz; Zhu, Haifeng; Zhang, Hui; Liang, Eryuan; Muhammad, Sher; Bin Farhan, Suhaib; Hussain, Iqtidar; Wazir, Muhammad Atif; Ahmed, Moinuddin; Esper, Jan
通讯作者	Zhu, HF (通讯作者)
发表日期	2017
ISSN	0930-7575
EISSN	1432-0894
起始页码	3381
结束页码	3390
卷号	48 期号:9-10
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 (similar to 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 A degrees C since the mid-twentieth century, and 1.94 A degrees 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.
关键词	TREE-RING CHRONOLOGIES TIBETAN PLATEAU LAST MILLENNIUM RECONSTRUCTION VARIABILITY MOUNTAINS HIMALAYAS ELEVATION DENSITY SIGNALS
英文关键词	Paleoclimate; Climate variability; Tree rings; Dendrochronology; Karakoram Anomaly
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000399431900032
来源期刊	CLIMATE DYNAMICS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259078
推荐引用方式 GB/T 7714	Asad, Fayaz,Zhu, Haifeng,Zhang, Hui,et al. Are Karakoram temperatures out of phase compared to hemispheric trends?[J]. 中国科学院青藏高原研究所,2017,48(9-10).
APA	Asad, Fayaz.,Zhu, Haifeng.,Zhang, Hui.,Liang, Eryuan.,Muhammad, Sher.,...&Esper, Jan.(2017).Are Karakoram temperatures out of phase compared to hemispheric trends?.CLIMATE DYNAMICS,48(9-10).
MLA	Asad, Fayaz,et al."Are Karakoram temperatures out of phase compared to hemispheric trends?".CLIMATE DYNAMICS 48.9-10(2017).