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首页> 外文期刊>Nordic hydrology >What is the primary factor controlling trend of Glacier No. 1 runoff in the Tianshan Mountains: temperature or precipitation change?
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What is the primary factor controlling trend of Glacier No. 1 runoff in the Tianshan Mountains: temperature or precipitation change?

机译：天山一号冰川径流的主要控制趋势是温度还是降水变化？

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摘要

The internal relationship between summer temperature (ST), annual precipitation (AP), annual mass balance (AM) and annual runoff (AR) of Glacier No.1 from 1959 to 2006, a so-called 'summer accumulation type' glacier, was examined with several statistical methods including simple linear regression, the Mann-Kendall test and wavelet analysis. In total, ST, AP and AR increase with a rate of 0.02 °/year, 1.53 mm/year and 2.83 x 10~4 m~3/year, respectively, while AM decreases at a rate of -14.5 mm/year. A step change of ST, AP, AM and AR was identified to have occurred in the mid-1990s. After that, ST and AR increase significantly. Meanwhile, the period of coherence changes from 4-8 years to 2-4 years, implying that when temperature increases greatly, the period tends to be shorter due to the fast response of the glacier. The increase of AR is caused by the loss of AM. The rise of ST is found to be responsible for the loss of AM, although the rise of AP is beneficial to the glacier accumulation. Our results on the dominant effect of temperature (rather than precipitation) on runoff of Glacier No. 1 could be used as the input to models in hydrology, geomorphology, climatology and paleoclimatology.
机译：1959年至2006年，所谓的“夏季蓄积型”冰川，夏季温度（ST），年降水量（AP），年质量平衡（AM）和年径流量（AR）之间的内部关系为用几种统计方法进行了检验，包括简单线性回归，Mann-Kendall检验和小波分析。总的来说，ST，AP和AR分别以0.02°/年，1.53 mm /年和2.83 x 10〜4 m〜3 /年的速度增加，而AM以-14.5 mm /年的速度减少。在1990年代中期，发生了ST，AP，AM和AR的阶跃变化。之后，ST和AR显着增加。同时，相干期从4-8年变为2-4年，这意味着当温度大大升高时，由于冰川的快速响应，相干期趋于缩短。 AR的增加是由AM的丢失引起的。尽管AP的上升有利于冰川的积累，但ST的上升是造成AM损失的原因。我们对温度（而不是降水）对1号冰川径流的主要影响的研究结果可以用作水文学，地貌学，气候学和古气候学模型的输入。

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  • 来源
    《Nordic hydrology》 |2017年第2期|231-239|共9页
  • 作者

    Yanlong Kong; Zhonghe Pang;

  • 作者单位

    Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, No. 19, Beituchengxilu, Chaoyang District Beijing 100029, China;

    Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, No. 19, Beituchengxilu, Chaoyang District Beijing 100029, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    climate change. Glacier No. 1; glacier river runoff; Mann-Kendall test; wavelet analysis;

    机译：气候变化。 1号冰川;冰川河径流曼肯德尔检验;小波分析;

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