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| DOI | 10.3724/SP.J.1226.2020.00430 |
| A note on the lake level variations of Nam Co, south-central Tibetan Plateau from 2005 to 2019 | |
Zhou, ShiQiao
| |
| 通讯作者 | Zhou, SQ (通讯作者) |
| 发表日期 | 2020 |
| ISSN | 1674-3822 |
| 起始页码 | 430 |
| 结束页码 | 435 |
| 卷号 | 12期号:6 |
| 英文摘要 | Tibetan lake levels are sensitive to global change, and their variations have a large impact on the environment, local agriculture and animal husbandry practices. While many remote sensing data of Tibetan lake level changes have been reported, few are from in-situ measurements. This note presents the first in-situ lake level time series of the central Tibetan Plateau. Since 2005, daily lake level observations have been performed at Lake Nam Co, one of the largest on the Tibetan Plateau. The interannual lake level variations show an overall increasing trend from 2006 to 2014, a rapid decrease from 2014 to 2017, and a surge from 2017 to 2018. The annual average lake level of the hydrological year (May-April) rose 66 cm from 2006 to 2014, dropped 59 cm from 2014 to 2017, and increased 20 cm from 2017 to 2018, resulting in a net rise of 27 cm or an average rate of about 2 cm per year. Compared to the annual average lake level based on the calendar year, it is better to use the annual average lake level based on the hydrological year to determine the interannual lake level changes. As the lake level was stable in May, it is appropriate to compare May lake levels when examining interannual lake level changes with fewer data. Overall, remote sensing results agree well with the in-situ lake level observations; however, some significant deviations exist. In the comparable 2006-2009 period, the calendar-year average lake level observed insitu rose by 10-11 cm per year, which is lower than the ICESat result of 18 cm per year. |
| 关键词 | WATER-LEVELICESATALTIMETRYBALANCEMASSDYNAMICSSTORAGECHINA |
| 英文关键词 | Lake Nam Co; lake level change; in-situ measurement; Tibetan Plateau |
| 语种 | 英语 |
| WOS研究方向 | Physical Geography |
| WOS类目 | Geography, Physical |
| WOS记录号 | WOS:000608477500010 |
| 来源期刊 | SCIENCES IN COLD AND ARID REGIONS
 |
| 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/259687 |
| 推荐引用方式 GB/T 7714 | Zhou, ShiQiao. A note on the lake level variations of Nam Co, south-central Tibetan Plateau from 2005 to 2019[J]. 中国科学院青藏高原研究所,2020,12(6). |
| APA | Zhou, ShiQiao.(2020).A note on the lake level variations of Nam Co, south-central Tibetan Plateau from 2005 to 2019.SCIENCES IN COLD AND ARID REGIONS,12(6). |
| MLA | Zhou, ShiQiao."A note on the lake level variations of Nam Co, south-central Tibetan Plateau from 2005 to 2019".SCIENCES IN COLD AND ARID REGIONS 12.6(2020). |
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