Dezhao Yan
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View article: Simulation of Active Layer Thickness Based on Multi-Source Remote Sensing Data and Integrated Machine Learning Models: A Case Study of the Qinghai-Tibet Plateau
Simulation of Active Layer Thickness Based on Multi-Source Remote Sensing Data and Integrated Machine Learning Models: A Case Study of the Qinghai-Tibet Plateau Open
Permafrost is one of the crucial components of the cryosphere, covering about 25% of the global continental area. The active layer thickness (ALT), as the main site for heat and water exchange between permafrost and the external atmosphere…
View article: Mapping taluses using deep learning and high-resolution satellite images
Mapping taluses using deep learning and high-resolution satellite images Open
Taluses are widely distributed in alpine regions such as the Tibetan Plateau. Despite their critical environmental and geohazard roles, taluses have only been mapped in limited regions. This study presents an effective approach to identify…
View article: Mechanisms of climate-induced lake dynamics in the Source Region of Three Rivers, Tibetan Plateau
Mechanisms of climate-induced lake dynamics in the Source Region of Three Rivers, Tibetan Plateau Open
Study region: The Source Region of the Three Rivers (SRTR), Tibetan Plateau, China. Study focus: Lake variation studies in the SRTR have primarily focused on a few large lakes, with limited understanding of the long-term trends, stages, an…
View article: Identifying Alpine Lakes with Shoreline Features
Identifying Alpine Lakes with Shoreline Features Open
Alpine lakes located in high-altitude mountainous regions act as vital sentinels of environmental change. Remote-sensing-based identification of these lakes is crucial for understanding their response to climate variations and for assessin…
View article: Identifying thermokarst lakes using deep learning and high-resolution satellite images
Identifying thermokarst lakes using deep learning and high-resolution satellite images Open
Thermokarst lakes play a critical role in hydrologic connectivity, permafrost stability, and carbon exchange from local to regional scales. Due to the typically small sizes and highly dynamic nature of thermokarst lakes, their identificati…
View article: Enhancing mountainous permafrost mapping by leveraging rock glacier inventory
Enhancing mountainous permafrost mapping by leveraging rock glacier inventory Open
Permafrost is a key component of the cryosphere, which plays significant roles in surface energy, hydrological, and biogeochemical processes. Moreover, permafrost, a sensitive indicator of climate change, has experienced widespread degrada…
View article: Enhancing mountainous permafrost mapping by leveraging a rock glacier inventory in northeastern Tibetan Plateau
Enhancing mountainous permafrost mapping by leveraging a rock glacier inventory in northeastern Tibetan Plateau Open
Our understanding of permafrost distribution is still limited, particularly in mountainous areas where highly heterogeneous environments and a lack of reliable field data tend to prevail. The extensive distribution of rock glaciers in the …
View article: High-Resolution Detection of Periglacial Landforms Deformation Using Radarsat-2 and GF-7 Stereo Optical Imagery
High-Resolution Detection of Periglacial Landforms Deformation Using Radarsat-2 and GF-7 Stereo Optical Imagery Open
In cold mountain environments, rock glaciers and talus represent common periglacial landforms. Accurate monitoring of their activity is crucial for understanding alpine kinematics. Presently, spaceborne SAR satellites monitor periglacial l…
View article: Kinematic inventory of rock glaciers in the Nyainqêntanglha Range using the MT-InSAR method
Kinematic inventory of rock glaciers in the Nyainqêntanglha Range using the MT-InSAR method Open
Rock glaciers are typical periglacial landforms with tongue or lobate morphological shapes and characterized by the distinct front, lateral margins, and often by ridge-and-furrow surface topography textures as well as kinematic characteris…
View article: Changes in vegetation greenness and its response to precipitation seasonality in Central Asia from 1982 to 2022
Changes in vegetation greenness and its response to precipitation seasonality in Central Asia from 1982 to 2022 Open
Central Asia is the world’s largest azonal arid region, with strong seasonal precipitation patterns. Vegetation in this region is relatively sparse and extremely sensitive to climatic changes. However, long-term trends in vegetation in Cen…
View article: Identifying Alpine Lakes in the Eastern Himalayas Using Deep Learning
Identifying Alpine Lakes in the Eastern Himalayas Using Deep Learning Open
Alpine lakes, which include glacial and nonglacial lakes, are widely distributed in high mountain areas and are sensitive to climate and environmental changes. Remote sensing is an effective tool for identifying alpine lakes over large reg…
View article: A suitable method for alpine wetland delineation: An example for the headwater area of the yellow river, Tibetan Plateau
A suitable method for alpine wetland delineation: An example for the headwater area of the yellow river, Tibetan Plateau Open
Alpine wetlands are one of the most important ecosystems in the Three Rivers Source Area, China, which plays an important role in regulating the regional hydrological cycle and carbon cycle. Accordingly, Wetland area and its distribution a…
View article: Spatial gathering characteristics of drought in the Qinghai-Tibet Plateau
Spatial gathering characteristics of drought in the Qinghai-Tibet Plateau Open
Due to climate change, drought has caused serious impacts on the eco-environment, hydrology and agriculture, and drought events in the Qinghai-Tibet Plateau (QTP) have become more severer and frequent; therefore, understanding the characte…
View article: Detecting Rock Glacier Displacement in the Central Himalayas Using Multi-Temporal InSAR
Detecting Rock Glacier Displacement in the Central Himalayas Using Multi-Temporal InSAR Open
Rock glaciers represent typical periglacial landscapes and are distributed widely in alpine mountain environments. Rock glacier activity represents a critical indicator of water reserves state, permafrost distribution, and landslide disast…
View article: Increasing annual streamflow and groundwater storage in response to climate warming in the Yangtze River source region
Increasing annual streamflow and groundwater storage in response to climate warming in the Yangtze River source region Open
Climate warming has been driving hydrological changes across the globe, especially in high latitude and altitude regions. Long-term (1962–2012) streamflow records and permafrost data in the Yangtze River source region were selected to anal…