A5081199149- Cryospheric studies and observations
- Climate change and permafrost
- Arctic and Antarctic ice dynamics
- Winter Sports Injuries and Performance
- Landslides and related hazards
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Geology and Paleoclimatology Research
- Hydrology and Watershed Management Studies
- Rangeland Management and Livestock Ecology
- Geophysics and Gravity Measurements
- Agricultural pest management studies
- Coconut Research and Applications
- Caching and Content Delivery
- GNSS positioning and interference
- Climate variability and models
- Flood Risk Assessment and Management
- Industrial Technology and Control Systems
- Aerospace Engineering and Energy Systems
- Geophysical Methods and Applications
- Environmental Changes in China
- Parallel Computing and Optimization Techniques
- Ionosphere and magnetosphere dynamics
- Advanced Data Storage Technologies
- Recommender Systems and Techniques
- Advanced Computational Techniques and Applications
Hunan University of Science and Technology
2015-2024
South China Agricultural University
2024
Beijing University of Technology
2021
Tianjin University
2018
Chinese Academy of Sciences
2011-2016
Northwest Institute of Eco-Environment and Resources
2012
Tsinghua University
2008
Abstract The second Chinese glacier inventory was compiled based on 218 Landsat TM/ETM + scenes acquired mainly during 2006–10. widely used band ratio segmentation method applied as the first step in delineating outlines, and then intensive manual improvements were performed. Shuttle Radar Topography Mission digital elevation model to derive altitudinal attributes of glaciers. boundaries some glaciers measured by real-time kinematic differential GPS or digitized from high-resolution images...
<strong class="journal-contentHeaderColor">Abstract.</strong> There is currently no glacial lake inventory data set for the entire high-mountain Asia (HMA) area. The definition and classification of lakes remain controversial, presenting certain obstacles to extensive utilization data. This study integrated glacier 668 Landsat TM, ETM<span class="inline-formula">+</span>, OLI images adopted manual visual interpretation extract boundaries within a 10 km buffer from extent using ArcGIS...
Changes of glacial lakes and implications were assessed for the Tian Shan Mountains from 1990 to 2010, based on Landsat Thematic Mapper/Enhanced Mapper Plus images. The total area has expanded greatly over last 20 years, at an average rate 0.69 ± 0.12 km2 a−1 or 0.8 0.1% a−1. Eastern contributed nearly half that increase (≈0.34 0.03 a−1), followed by northern 0.17 Both widespread climate warming glacier shrinking led lake areal expansion, while small medium (<0.6 km2) responded most...
Abstract. To make first-order estimates of the probability moraine-dammed lake outburst flood (MDLOF) and prioritize probabilities breaching posed by potentially dangerous lakes (PDMDLs) in Chinese Himalayas, an objective approach is presented. We first select five indicators to identify PDMDLs according four predesigned criteria. The climatic background was regarded as precondition moraine-dam failure, under different preconditions, we distinguish trigger mechanisms MDLOFs subdivide them...
The change in snow cover under climate is poorly understood Tianshan Mountains. Here, we investigate the spatiotemporal characteristics and trends of snow-covered area (SCA) days (SCD) Mountains by using cloud-removed MODIS fractional datasets from 2001–2015. possible linkage between temperature precipitation changes over also investigated. results are as follows: (1) distribution exhibits a large heterogeneity. areas with SCD greater than 120 distributed principal mountains elevations above...
ABSTRACT We investigate an internal surge of Karayaylak Glacier, which was reported by the media in May 2015. To differentiate 2015 glacier from other advances, we surveyed changes velocity, crevasses and area using Landsat 8 OLI L1T, ZY-1-02C Gaofen-1 images October 2014 to July The measured automatic feature extraction tracking during active phase, 10–100 times velocity quiescent with a maximum (20.2 ± 0.9) m d −1 (mean standard error) 15 west branch glacier. initiation termination took...
Abstract The Tibetan Plateau interior area (TPIA), often termed the Qangtang Plateau, is distinguished by many dome-like mountains higher than 6000 ma.s.l. These provide favourable conditions for development of ice caps and glaciers extreme continental/subpolar type. According to historical topographic maps (1959–80) recent Landsat images (2004–11), continuous retreat was observed glacierized part this decreased 9.5% (0.27% a –1 ) with respect total glacier 8036.4 km 2 in 1970s. Glaciers...
Abstract. Due to the influence of Indian monsoon, Kangri Karpo Mountains in south-east Tibetan Plateau is most humid and one important concentrated regions containing maritime (temperate) glaciers. Glacier mass loss an contributor global mean sea level rise, changes run-off distribution, increasing risk glacial-lake outburst floods (GLOFs). Because its inaccessibility high labour costs, information about glaciers still limited. Using geodetic methods based on digital elevation models (DEMs)...
The assessment of glacier mass budget is crucial for assessing water reserves stored in glaciers. Derived changes the Muztag Ata and Kongur Tagh (MAKT) region eastern Pamir, northwestern China, helpful improving our knowledge dynamics glaciers under a changing climate High Mountain Asia. Here, area derived from remote sensing data are investigated period 1971/76–2013/14 MAKT. We have used ASTER images (2013/14), Cartosat-1 (2014) Landsat, SRTM (Shuttle Radar Terrain Mission) digital...
Abstract. Multi-temporal glacier inventories provide key information about the glaciers, their characteristics, and changes are inevitable for modelling investigating geodetic mass changes. However, to date, no consistent multi-temporal inventory whole of Karakoram exists, negatively affecting monitoring spatio-temporal variations in glaciers' geometric parameters related applications. We used a semi-automatic method combining automatic segmentation manual correction produced (KGI) compiled...
To assess changes in glacial lakes the Chinese Himalaya, 2 inventory phases were conducted on basis of 278 aerial survey topography maps from 1970s and 38 Advanced Spaceborne Thermal Emission Reflection Radiometer (ASTER) images 2000s. In past 30 years, number has decreased, 1750 to 1680 (a decrease 4.0%), whereas average area expanded 166.48 215.28 km2 (an increase 29.7%). Between 3400 6000 m, lake areas at rates 2–84% almost all 100-m elevation bands, dominant expansion different...
ABSTRACT Changes of glaciers and glacial lakes their causes were examined in the Hengduan Shan from 1990 to 2014, based on Landsat TM/ETM+/OLI images. A total glacier area 1298.8 ± 62.1 km 2 lake 255.8 31.6 inventoried 2014. The declined at an average rate −0.40 0.26% a −1 , while expanded +0.12 0.03% over past 24 years. These changes probably resulted observable temperature increase slight precipitation increase. ‘corridor-barrier’ effect formed by longitudinal range–gorge terrain may have...
ABSTRACT To obtain information on changes in glacier mass balance the central Nyainqentanglha Range, a comprehensive study was carried out based digital-elevation models derived from 1968 topographic maps, Shuttle Radar Topography Mission DEM (2000) and TerraSAR-X/TanDEM-X (2013). Glacier area between 2016 were maps Landsat OLI images. This showed contained 715 glaciers, with an of 1713.42 ± 51.82 km 2 , 2016. Ice cover has been shrinking by 0.68 0.05% −1 since 1968. The covered debris...
Previous studies have shown that glacier changes were heterogeneous in the western Karakoram, with coexistence of retreating, advancing, and surging glaciers. However, it remains unclear mechanisms driving these changes. Based on Shuttle Radar Topography Mission (SRTM) DEM TerraSAR-X/TanDEM-X images (2014), this study presents surface height Hunza Basin employing method differential synthetic aperture radar interferometry (DInSAR). A slight negative mass balance was observed during...
ABSTRACT Twin glaciers collapsed in 2016 near Aru Co, western Tibet and caused extreme loss to human beings. In this study, we attempted track the dynamics of region, for example glacier area mass changes Co period 1971–2016, which were determined using topographic maps Landsat images ASTER-derived DEMs (2011–16), Shuttle Radar Terrain Mission DEM (2000) (1971). Our results showed that decreased by −0.4 ± 4.1% during 1971–2016. The geodetic mass-balance lost at a rate −0.15 0.30 m w.e. −1...
Abstract During the last few decades, lake-terminating glaciers in Himalaya have receded faster than land-terminating as proglacial lakes exacerbated mass loss of their host glaciers. Monitoring impacts glacier recession and dynamics on lake extent water volume provides an approach to assess interplay between lakes. We describe Longbasaba Glacier estimate wastage its contribution lake. The results show that area has decreased by 3% during 1988–2018, with a more variable prior 2008 decade....
Abstract To characterize the spatiotemporal variations of glacier surface speed on Kenai Peninsula, Alaska (∼3,900 km 2 ), we derived 92 fields between October 2014 and December 2019 using intensity offset tracking Sentinel‐1 data. On average, speeds are 50% greater in spring (March‐May) than annual mean (69 m a −1 ) while winter close to mean. While marine‐terminating glaciers have their maximum near terminus, both land‐ lake‐terminating flow fastest around median elevation. tidewater 1.7...
Abstract. The highly glacierized eastern part of the Tibetan Plateau is key source region for seven major rivers: Yangtze, Yellow, Lancang–Mekong, Nu–Salween, Irrawaddy, Ganges, and Brahmaputra rivers. These rivers are vital freshwater resources more than 1 billion people downstream their daily life, irrigation, industrial use, hydropower. However, glaciers have been receding during recent decades projected to decline further, which will partly temporarily impact water availability drought...
Abstract. Multi-temporal glacier inventories provide key information about the glaciers, their characteristics and changes are inevitable for modelling investigating geodetic mass changes. However, to date, no consistent multi-tempo inventory whole of Karakoram exists, negatively affecting monitoring spatiotemporal variations glaciers’ geometric parameters related applications. We used a semi-automatic method combining automatic segmentation manual correction produced multi-temporal (KGI)...