High spatial resolution elevation change dataset derived from ICESat-2 crossover points on the Tibetan Plateau DOI Creative Commons
Tengfei Chen, Jian Wang, Tao Che

et al.

Scientific Data, Journal Year: 2024, Volume and Issue: 11(1)

Published: April 17, 2024

Abstract Understanding elevation changes on the Tibetan Plateau is crucial to comprehend in topography, landscape, climate, environmental conditions, and water resources. However, some of current products that track only cover specific surface types or limited areas, others have low spatial resolution. We propose an algorithm extract ICESat-2 crossover points dataset for Plateau, form a dataset. The has density 2.015 groups/km², each group indicates amount change before after period time over area approximately 17 meters diameter. Comparing data with existing studies glaciers lakes, we demonstrated reliability derived changes. provide refined source understanding high-spatial-resolution Plateau. This can validation various require high-precision high-resolution

Language: Английский

Time‐series ground surface deformation revealed by advanced land observing satellite‐2 and Sentinel‐1 along the Bei'an‐Hei'he highway in Northeast China DOI
Aoxiang Yan, Ying Guo, Wei Shan

et al.

Earth Surface Processes and Landforms, Journal Year: 2025, Volume and Issue: 50(1)

Published: Jan. 1, 2025

Abstract Climate warming, human activities and the subsequent warming thawing of permafrost have led to ground surface instability, threatening infrastructures indigenous northern communities. The Da Xiao Xing'anling mountain ranges, home largest latitudinal region in China, highlight importance monitoring thermal state for understanding climate change regional economic development. This study utilized 11 scenes Advanced Land Observing Satellite‐2 (ALOS‐2) data 54 Sentinel‐1 from March 2018 December 2019 evaluate deformation Bei'an‐Hei'he Highway (BHH) Northeast China. ALOS‐2 results showed rates ranging −30 +35 mm/year, while Sentinel‐1, +30 mm/year (negative values indicate subsidence positive, frost heaving). zone (deformation rate exceeding −15 mm/year) was found areas with significant variations temperature (greater than ±0.8°C), correlated positively daily precipitation air temperature. Thaw settlement predominantly observed at low elevations (140 425 m) on gentle slope angles (2–6°), affecting both south‐ north‐facing slopes. A comparison sources revealed that were more sensitive high normalized difference vegetation index (NDVI) values, provided detailed regions NDVI. contributes valuable ongoing assessments road stability

Language: Английский

Citations

0
Impacts of snow cover on the cooling mechanism and performance in the crushed-rock interlayer embankment DOI Creative Commons

Kun Xiang,

Alexander Zhirkov,

Zhi Wen

et al.

Advances in Climate Change Research, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

Citations

0
Evaluating the thermal environment of urban land surfaces in Yakutsk, a city located in a region of continuous permafrost DOI Creative Commons
Xianglong Li, Ze Zhang,

Jinxin Lu

et al.

Advances in Climate Change Research, Journal Year: 2024, Volume and Issue: 15(1), P. 113 - 123

Published: Jan. 8, 2024

Rapid urbanization has led to changes in the urban land surface thermal environment. However, there are still much unknown about conditions permafrost regions. Permafrost is a unique geological environment, environment may trigger disasters caused by degradation. This study utilized remote sensing data and geographic detectors identify dynamic temperature (LST) use/land cover (LU/LC) Yakutsk, as well potential factors contributing LST variations. Between 1992 2020, built-up area Yakutsk increased 36%, annual average risen 6.67°C, accompanied an expansion of high-temperature areas. Despite ongoing greening efforts, rapid poses threat these green spaces. Changes normalized difference index (NDBI) use transfer (LDT) were identified primary drivers changes. By integrating detector technology artificial neural network models, we optimized selection input prediction model used it explore future Yakutsk. The expected reach 23.4°C 25.1°C 2030 2040, respectively, with further increase provides reference for ecological, hydrological, assessments cities

Language: Английский

Citations

3
High spatial resolution elevation change dataset derived from ICESat-2 crossover points on the Tibetan Plateau DOI Creative Commons
Tengfei Chen, Jian Wang, Tao Che

et al.

Scientific Data, Journal Year: 2024, Volume and Issue: 11(1)

Published: April 17, 2024

Abstract Understanding elevation changes on the Tibetan Plateau is crucial to comprehend in topography, landscape, climate, environmental conditions, and water resources. However, some of current products that track only cover specific surface types or limited areas, others have low spatial resolution. We propose an algorithm extract ICESat-2 crossover points dataset for Plateau, form a dataset. The has density 2.015 groups/km², each group indicates amount change before after period time over area approximately 17 meters diameter. Comparing data with existing studies glaciers lakes, we demonstrated reliability derived changes. provide refined source understanding high-spatial-resolution Plateau. This can validation various require high-precision high-resolution

Language: Английский

Citations

1