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Are Karakoram temperatures out of phase compared to hemispheric trends?
Asad, F (Asad, Fayaz)1,2; Zhu, HF (Zhu, Haifeng)1,3; Zhang, H (Zhang, Hui)1; Liang, EY (Liang, Eryuan)1,3; Muhammad, S (Muhammad, Sher)1,2; Bin Farhan, S (Bin Farhan, Suhaib)4; Hussain, I (Hussain, Iqtidar)1,2; Wazir, MA (Wazir, Muhammad Atif)1,2; Ahmed, M (Ahmed, Moinuddin)5,6; Esper, J (Esper, Jan)7; Zhu, HF
Source PublicationCLIMATE DYNAMICS
2017
Volume48Issue:9-10Pages:3381-3390
DOI10.1007/s00382-016-3273-6
AbstractIn 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.
Subject Area自然地理学
WOS IDWOS:000399431900032
Language英语
Indexed BySCI
KeywordTREE-RING CHRONOLOGIES TIBETAN PLATEAU LAST MILLENNIUM CENTRAL-ASIA RECONSTRUCTION VARIABILITY HIMALAYA MOUNTAINS ELEVATION DENSITY
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences ; Meteorology & Atmospheric Sciences
Cooperation Status国际
SubtypeArticle
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8257
Collection图书馆
Corresponding AuthorZhu, HF
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, 16 Lincui Rd, Beijing 100101, Peoples R China.
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China.
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100100, Peoples R China.
4.Pakistan Space & Upper Atmosphere Res Commiss, SUPARCO Headquarters, SUPARCO Rd,POB 8402, Karachi 75270, Pakistan.
5.Fed Urdu Univ Arts Sci & Technol, Bot Dept, Karachi 75300, Pakistan.
6.Indiana State Univ, Dept Earth & Environm Syst, Sci 159E, Terre Haute, IN 47809 USA.
7.Johannes Gutenberg Univ Mainz, Dept Geog, D-55099 Mainz, Germany.
Recommended Citation
GB/T 7714
Asad, F ,Zhu, HF ,Zhang, H ,et al. Are Karakoram temperatures out of phase compared to hemispheric trends?[J]. CLIMATE DYNAMICS,2017,48(9-10):3381-3390.
APA Asad, F .,Zhu, HF .,Zhang, H .,Liang, EY .,Muhammad, S .,...&Zhu, HF.(2017).Are Karakoram temperatures out of phase compared to hemispheric trends?.CLIMATE DYNAMICS,48(9-10),3381-3390.
MLA Asad, F ,et al."Are Karakoram temperatures out of phase compared to hemispheric trends?".CLIMATE DYNAMICS 48.9-10(2017):3381-3390.
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