Simulation of the potential impacts of lakes on glacier behavior over the Tibetan Plateau in summer

Su, Dongsheng; Wen, Li; Huang, Anning; Wu, Yang; Gao, Xiaoqing; Wang, Mengxiao; Zhao, Yixin; Kirillin, Georgiy

doi:10.1007/s00382-022-06517-5

Cited by 2 publications

(1 citation statement)

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“…However, most of these studies have primarily relied on gravity satellites and statistical data to assess the project's impact on land water storage, particularly groundwater, while overlooking changes in surface water. Surface water, as a crucial component of the terrestrial water cycle and water resources [27], holds significant importance for various aspects, such as human production, landscape ecology, and climate regulation [28][29][30]. Consequently, investigating the surface water variations in the SNWDP area is of significant importance for water resource protection and management.…”

Section: Introductionmentioning

confidence: 99%

The Divergent Changes in Surface Water Area after the South-to-North Water Diversion Project in China

Guo,

Li,

Xiao

et al. 2024

Remote Sensing

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Water scarcity is a significant challenge in China, and the South-to-North Water Diversion Project (SNWDP) aims to address the water deficit in the northern region. This study analyses Landsat 5/7/8 remote sensing imagery from 2001 to 2020 on the Google Earth Engine (GEE) cloud platform to assess the impact of the SNWDP on surface water bodies in water-receiving areas. Moreover, by integrating MODIS evapotranspiration data and ERA5 meteorological reanalysis data, this study comprehensively assesses the SNWDP’s contribution to varied surface water body changes. Using an improved multi-temporal water frequency method, this study extracts max, seasonal, and year-long water surface areas. The results reveal that Beijing and Henan provinces have experienced significant increases in water surface areas post-SNWDP, with their max water surface area growing at a rate of 10.42 km2/yr and 33.49 km2/year, respectively. However, water surface areas in several provinces, especially those along the east route, were not observed to increase. The spatially detailed Mann–Kendall test indicates that the expansion of year-long water bodies is mostly concentrated near the central route project, revealing spatial heterogeneity in the water replenishment effect. Cropland and impervious surfaces are the main contributors to transfers in and out of water bodies. Meteorological and water use factors for spatial variations in water changes are also identified. These findings provide insights into the varied hydrological consequences of the SNWDP and contribute to the evaluation and management of similar large-scale water diversion projects around the world.

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