气候变化领域集成服务门户(CCPortal): 念青唐古拉山脉西段雪线高度变化遥感观测

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	念青唐古拉山脉西段雪线高度变化遥感观测
其他题名	Changes of Snow Line Altitude for Glaciers onWestern Nyainqentanglha Range Observed by Remote Sensing
	张其兵; 康世昌; 张国帅
发表日期	2016
ISSN	1000-0690
卷号	36 期号:12 页码:1937-1944
中文摘要	利用Landsat TM/ETM+/8 OLI和HJ1A遥感影像资料作为数据源,通过目视解译方法,提取念青唐古拉山脉西段雪线高度变化值,同时对研究区周边气温与降水变化趋势进行分析,研究其与冰川变化的关系。结果表明:2004~2013年北坡13条冰川和南坡15条冰川的雪线高度都呈升高的趋势;从整体上来考察,北坡雪线高度升高值为14 m/a,南坡升高值为4.9 m/a,北坡升高速度比南坡快;自1964年以来,研究区气温升高趋势显著,降水增加不明显,气候变暖是冰川退缩的主要原因;北坡冰川比南坡冰川经历更大的物质负平衡,主要是由于气温的升高率北坡比南坡快所致。
英文摘要	Glaciers in the Tibetan Plateau have experienced change in recent decades with the climate change, and the change trend were not homogeneous. The variation of snow line altitude(SLA) can indicate the glacier change. The changes of SLA for glaciers in the western Nyainqentanglha Range can be detected by remote sensing images obtained at the end of ablation season, such as Landsat TM/ETM+/8 OLI and HJ1A images, when eye interpretation technologywere used to extract snow line. Meanwhile, the variation trend of temperature and precipitation recorded by 4 meteorological stations adjacent to the research area were analyzed, so as to find its influence on glacier change. The results showed that SLA of total studied 28 glaciers rose obviously in 2004-2013. SLA on north slope as a whole raised 14 m/a, while 4.9 m/a on south slope. The air temperature in the studied area rose obviously, precipitation rose slowly since 1964. Climate warming is the main cause for glacier recession. Glaciers on north slope experienced more negative mass balance than south slope, because the rate of air temperature increase on the north is higher than that on the south.
关键词	念青唐古拉山脉西段雪线高度遥感气候变化
英文关键词	the western Nyainqentanglha Range;snow line altitude;remote sensing;climate change
语种	中文
来源期刊	地理科学
来源机构	中国科学院西北资源环境生态研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/89651
推荐引用方式 GB/T 7714	张其兵,康世昌,张国帅. 念青唐古拉山脉西段雪线高度变化遥感观测[J]. 中国科学院西北资源环境生态研究院,2016,36(12):1937-1944.
APA	张其兵,康世昌,&张国帅.(2016).念青唐古拉山脉西段雪线高度变化遥感观测.地理科学,36(12),1937-1944.
MLA	张其兵,et al."念青唐古拉山脉西段雪线高度变化遥感观测".地理科学 36.12(2016):1937-1944.