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Remote Sensing of Water Dynamics in Permafrost Regions

A special issue of Remote Sensing (ISSN 2072-4292). This special issue belongs to the section "Remote Sensing in Geology, Geomorphology and Hydrology".

Deadline for manuscript submissions: 29 December 2025 | Viewed by 494

Special Issue Editors


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Guest Editor
Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
Interests: permafrost degradation; thermokarst processes; permafrost hydrology

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Guest Editor
School of Geographical Sciences, Nanjing University of Information Science & Technology, Nanjing, China
Interests: permafrost degradation; radar remote sensing; permafrost hydrology

Special Issue Information

Dear Colleagues,

Permafrost is highly sensitive to climate change, with thaw-induced shifts in water dynamics profoundly affecting hydrology, ecosystems, and infrastructure stability. Processes such as thermokarst formation, wetland drying, and active layer deepening alter surface and subsurface water regimes. Remote sensing has become an essential tool for monitoring these changes across spatially vast and logistically challenging permafrost landscapes. With advances in satellite and UAV platforms, thermal, radar, and optical sensors now provide critical insights into freeze–thaw cycles, soil moisture, and hydrological connectivity. Understanding these dynamics is key to predicting environmental responses and supporting sustainable development in cold-region environments.

This Special Issue aims to advance the scientific understanding of water dynamics in permafrost regions by promoting innovative applications of remote sensing technologies. It seeks to highlight methodological developments, multi-sensor data integration, and new insights into hydrological processes such as surface water change, soil moisture variability, freeze–thaw transitions, and landscape–hydrology interactions. This topic aligns closely with the scope of Remote Sensing by focusing on the use of Earth observation tools to monitor and model dynamic geophysical and hydrological phenomena. Contributions will strengthen the journal’s mission to support cutting-edge research in remote sensing for environmental monitoring, geoscience, and climate-related change detection. Potential topics for this Special Issue include, but are not limited to, the following:

  • Monitoring of thermokarst lakes, ponds, wetlands, and river dynamics;
  • Remote sensing of soil moisture, active layer thickness, and ground ice melt;
  • Freeze–thaw cycle detection and seasonal snow cover mapping;
  • Detection and monitoring of thaw slumps, ice-rich permafrost degradation, and surface subsidence;
  • Hydrological connectivity and watershed-scale runoff dynamics in permafrost regions;
  • Impacts of permafrost thaw on carbon and water fluxes using remote sensing.

Dr. Zeyong Gao
Dr. Lingxiao Wang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Remote Sensing is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • permafrost degradation
  • thermokarst processes
  • ground-ice melting
  • active layer dynamics
  • climate change impacts
  • eco-hydrological effects

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Published Papers (1 paper)

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Research

19 pages, 20899 KB  
Article
Spatiotemporal Dynamics of Roadside Water Accumulation and Its Hydrothermal Impacts on Permafrost Stability: Integrating UAV and GPR
by Minghao Liu, Bingyan Li, Yanhu Mu, Jing Luo, Fei Yin and Fan Yu
Remote Sens. 2025, 17(17), 3110; https://doi.org/10.3390/rs17173110 (registering DOI) - 6 Sep 2025
Abstract
The Gonghe–Yushu Expressway (GYE) traverses the degrading permafrost region of the Qinghai–Xizang Plateau, where climate warming has resulted in widespread water ponding, posing significant engineering challenges. However, the spatiotemporal dynamics of this water accumulation and its impacts on permafrost embankment stability remain inadequately [...] Read more.
The Gonghe–Yushu Expressway (GYE) traverses the degrading permafrost region of the Qinghai–Xizang Plateau, where climate warming has resulted in widespread water ponding, posing significant engineering challenges. However, the spatiotemporal dynamics of this water accumulation and its impacts on permafrost embankment stability remain inadequately understood. This study integrates high-resolution unmanned aerial vehicle (UAV) remote sensing with ground-penetrating radar (GPR) to characterize the spatial patterns of water ponding and to quantify the spatial distribution, seasonal dynamics, and hydrothermal effects of roadside water on permafrost sections of the GYE. UAV-derived point cloud models, optical 3D models, and thermal infrared imagery reveal that approximately one-third of the 228 km study section of GYE exhibits water accumulation, predominantly occurring near the embankment toe in flat terrain or poorly drained areas. Seasonal monitoring showed a nearly 90% reduction in waterlogged areas from summer to winter, closely corresponding to climatic variations. Statistical analysis demonstrated significantly higher embankment distress rates in waterlogged areas (14.3%) compared to non-waterlogged areas (5.7%), indicating a strong correlation between surface water and accelerated permafrost degradation. Thermal analysis confirmed that waterlogged zones act as persistent heat sources, intensifying permafrost thaw and consequent embankment instability. GPR surveys identified notable subsurface disturbances beneath waterlogged sections, including a significant lowering of the permafrost table under the embankment and evidence of soil loosening due to hydrothermal erosion. These findings provide valuable insights into the spatiotemporal evolution of water accumulation along transportation corridors and inform the development of climate-adaptive strategies to mitigate water-induced risks in degrading permafrost regions. Full article
(This article belongs to the Special Issue Remote Sensing of Water Dynamics in Permafrost Regions)
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