Research on the evolution law of permafrost under the influence of urbanization based on remote sensing technology

Gao, Kai; Liu, Yanjie; Ding, Lin; Huang, Shuai; Qiu, Kaichi; Wang, Zhongpan; Yang, Yang; Liu, Xing; Li, Jiaxin

doi:10.1007/s11803-021-2065-0

Cited by 3 publications

(1 citation statement)

References 15 publications

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“…There is a substantial amount of permafrost in China, with about 21.5% of the land area being permafrost, and about 53.5% being seasonal frozen soil (Xu et al, 2001). Heilongjiang Province is a typical seasonally frozen ground regions, but it is also one of the main grain‐producing regions in China, the status of the grains as “ballast” is becoming increasingly apparent, and the importance of large‐scale water transfer projects to irrigation farmland is becoming increasingly apparent (Gao et al, 2021; Hai et al, 2023; Ling et al, 2009; Wang, Meng, et al, 2018; Wang, Wang, et al, 2018). The Heilongjiang Province has been involved in the construction of many canal projects to accomplish this goal.…”

Section: Introductionmentioning

confidence: 99%

Study of hydrothermal characteristics of large‐scale water conveyance trunk canals in seasonally frozen ground regions under the influence of different initial water contents

Wang,

Hai,

et al. 2024

River

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In seasonal frozen soil, freezing and thawing can change the physical and mechanical properties and affect slope stability. There are complex moisture conditions in the main water transfer canal. A study of the hydrothermal evolution of canals with different initial water contents under the action of freezing and thawing is of great importance for the prevention and control of canal slope slides. Hydrothermal coupling models are the key to revealing the canal's hydrothermal evolution. As some of the modeling parameters in the current hydrothermal coupling model are based on empirical values, particularly those in the van Genuchten equation, which are not necessarily related to soil properties, they are not suitable for analyzing the hydrothermal evolution of canals. This paper determines the soil‐water characteristic curve from the cumulative curve of particle gradation in the subsoil, and then determines the hydraulic parameters of the subsoil using the VG model, which then corrects the hydrothermal coupling model. The method of modifying the hydrothermal coupling model is original, which makes the model more realistically reflect drainage soil characteristics. During freezing and thawing of channel slopes with different initial water contents (21%, 25%, 29%, 33%, 37%, and 41%), temperature field, water field, and ice content distributions were investigated. Using the V‐G model, the optimal parameters for canal subsoil were a = 0.06, n = 1.2, and m = 0.17, and temperature distribution trends between canals with different water contents were basically similar. Water will accumulate at the bottom as the liquid water content increases at the canal boundary.

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Section: Introductionmentioning

confidence: 99%

Study of hydrothermal characteristics of large‐scale water conveyance trunk canals in seasonally frozen ground regions under the influence of different initial water contents

Wang,

Hai,

et al. 2024

River

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Study on the geothermal environment of urban building in permafrost regions of Northeast China

Qiu,

Yu,

et al. 2023

Journal of Building Engineering

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An Ecological Oracle

Arar

2023

Leonardo

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An Ecological Oracle is an installation that creates a simulated environment to explore the social dynamics surrounding a critical tipping point of climate change—the thawing of permafrost. The work engages participants through real-time data that exposes how inputs in and out of their control affect permafrost melt. Through this experience, the work seeks to expose underlying tensions between the individual and collective, raising questions regarding how ideology may shape our perception of this potential climate event.

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Research on the evolution law of permafrost under the influence of urbanization based on remote sensing technology

Cited by 3 publications

References 15 publications

Study of hydrothermal characteristics of large‐scale water conveyance trunk canals in seasonally frozen ground regions under the influence of different initial water contents

Study of hydrothermal characteristics of large‐scale water conveyance trunk canals in seasonally frozen ground regions under the influence of different initial water contents

Study on the geothermal environment of urban building in permafrost regions of Northeast China

An Ecological Oracle

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