Mechanism of Lake Area Variations and Water Level Changes in Nam Co Lake

Abstract:

The Tibetan Plateau is one of the best areas for the study because of its geographical location as well as human disturbance. AS one of the largest lakes in the Qinghai-Tibet Plateau, Nam Co Lake seepage underestimated for a long time. By linear regression analysis of hydrological data from 1970-2005, we qualitatively understands the water level operation mechanism. The result shows that the model deviates from 2000, compared with the actual water level. Correlation analysis indicates the Nam Co Lake seepage flow reduces after 2000. The Three Gorges project resulted in the uplift of the downstream water level, which exacerbates the rise of water level of Nam Co Lake. Owing to the non timeliness of underground seepage recharge, water level of downstream lake is difficult to simulate. According to the result and recent research, underground seepage may be a cycle, affecting the water level of all the lakes.

• Periodical: Advanced Materials Research (Volumes 838-841)
• Pages: 1685-1692
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.838-841.1685
• Online since: November 2013
• Authors: Yan Du*, Mo Wen Xie, Man Hu
• Keywords: Ground Water, Nam Co Lake, Seepage, Water Level

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