| 祁连山七一冰川消融期间的能量平衡特征 |
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| 引用本文： | 陈亮,段克勤,王宁练,蒋熹,贺建桥,宋高举,谢君.祁连山七一冰川消融期间的能量平衡特征[J].冰川冻土,2007,29(6):882-888. |
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| 作者姓名： | 陈亮 段克勤 王宁练 蒋熹 贺建桥 宋高举 谢君 |
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| 作者单位： | 中国科学院,寒区旱区环境与工程研究所,冰冻圈科学国家重点实验室,甘肃,兰州,730000;中国科学院,研究生院,北京,100039;中国科学院,寒区旱区环境与工程研究所,冰冻圈科学国家重点实验室,甘肃,兰州,730000 |
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| 基金项目： | 中国科学院创新团队国际合作伙伴计划项目(CXTD-Z2005-2)，国家重点基础研究发展计划(973计划)项目(2005CB422003)，国家杰出青年科学基金项目(40525001)，科技基础性工作专项“中国冰川资源及其变化调查”项目(2006FY1102007)资助 |
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| 摘 要： | 冰川表面的能量平衡可以描述冰雪消融与气候响应之间的物理机制,利用2006年6月9日至9月28日在祁连山七一冰川消融区中部自动气象站(AWS)的观测资料,对七一冰川表面的能量平衡进行了估算.结果显示:在冰川消融期,净辐射、湍流热通量和冰川消融耗热是能量平衡的主要组成部分,能量收入方面主要是净辐射和感热通量,分别约占总能量收入的82.4%和17.6%;而支出方面主要是冰雪消融耗热和潜热释放,分别约占总能量支出的87.2%和12.8%.2006年7月31日至8月6日进行了为期近7 d的冰面径流场观测,基于能量平衡原理,对冰川表面的消融进行了模拟,模拟的消融速率和实测的冰面消融数据吻合的较好.
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| 关 键 词： | 七一冰川 能量平衡 感热通量 潜热通量 |
| 文章编号： | 1000-0240（2007）06-0882-07 |
| 收稿时间： | 2007-03-27 |
| 修稿时间： | 2007-07-02 |
Characteristics of the Surface Energy Balance of the Qiyi Glacier in Qilian Mountains in Melting Season |
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| CHEN Liang,DUAN Ke-qin,WANG Nin-lian,JIANG Xi,HE Jian-qiao,SONG Gao-ju,XIE Jun.Characteristics of the Surface Energy Balance of the Qiyi Glacier in Qilian Mountains in Melting Season[J].Journal of Glaciology and Geocryology,2007,29(6):882-888. |
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| Authors: | CHEN Liang DUAN Ke-qin WANG Nin-lian JIANG Xi HE Jian-qiao SONG Gao-ju XIE Jun |
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| Abstract: | The surface energy balance of a glacier describes the physical connection between ice/snow ablation and climatic forcing.To expand the knowledge on the response of the Qiyi Glacier to climate variation,the influence of climate change and glacier melting were analyzed,and the energy balance at the glacier surface was estimated too,by using the meteorology data observed by the Auto Weather Station of Qiyi Glacier,Qilian Mountains from June 9 to September 28.The calculation of heat balance components show that net radiation,turbulent heat fluxes and heat used for glacier/snow melting are the major elements of the energy balance.During the period,the heat income comprises net radiation and sensible heat exchange with the ratio of 82.4% and 17.6%,respectively;the heat outcome comprises latent heat flux and heat used for glacier/snow melting with the ratio of 12.8% and 87.2%,respectively.According to energy balance theory,the glacier surface melting is modeled,and the modeled glacier melting value is in agreement with the observed glacier melting value almost exactly,with a correlation coefficient equal to 0.83. |
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| Keywords: | Qiyi Glacier energy balance sensible heat flux latent heat flux |
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