A5010910083- Cryospheric studies and observations
- Winter Sports Injuries and Performance
- Landslides and related hazards
- Climate change and permafrost
- Arctic and Antarctic ice dynamics
- Seismic Waves and Analysis
- Geology and Paleoclimatology Research
- Property Rights and Legal Doctrine
- Aeolian processes and effects
- Polar Research and Ecology
- Seismic Imaging and Inversion Techniques
- Environmental Changes in China
- Remote Sensing and Land Use
- Corporate Law and Human Rights
- Environmental and Agricultural Sciences
- Remote Sensing in Agriculture
- Geophysical Methods and Applications
Xi'an University of Architecture and Technology
2023-2025
Anhui Normal University
2024
Polar Research Institute of China
2019-2023
Ministry of Natural Resources
2022-2023
Jilin Province Science and Technology Department
2019-2023
Jilin University
2019-2023
Academy of Medical Sciences
2014
Chinese Academy of Medical Sciences & Peking Union Medical College
2014
The internal layers of ice sheets from ice-penetrating radar (IPR) investigation preserve critical information about the ice-flow field and englacial conditions. This paper presents a new detailed analysis spatial distribution characteristics subglacial topography East Antarctic sheet (EAIS) Zhongshan Station to Dome A. data 1244 km along traverse between A EAIS were collected during 29th Chinese National Research Expedition (CHINARE 29, 2012/2013). In this study, Internal Layering...
The airborne ice-penetrating radar (IPR) is an effective method used for ice sheet exploration and widely applied detecting the internal structures of sheets understanding mechanism flow characteristics bottom sheets. However, because ambient influence limitations instruments, IPR data are frequently overlaid with noise interference, which further impedes extraction layer features interpretation physical sheet. In this paper, we first conventional filtering methods to remove feature...
Understanding englacial and subglacial structures is a fundamental method of inferring ice sheets’ historical evolution surface mass balance. The internal layer continuity index the basal roughness are key parameters indicators for speculation relationship between sheet’s structure or bottom flow. Several methods have been proposed in past two decades to quantitatively calculate geometry ice–bedrock interface based on radar echo signals. These mainly average absolute value vertical gradient...
Basal melt in the Dome A region will influence deep-ice-core drilling at Kunlun Station. The melting point (wet bedrock) has a higher reflectivity than surrounding area, which can be assessed using radar echoes from bedrock. This paper uses linear absorption model to determine wet and dry ice–bedrock interfaces around site. In determination process, an artificial intelligence was applied extract interface for inferring ice thickness. Additionally, various depth-averaged attenuation rates...
In the Arctic and Antarctic scientific expeditions, ice-penetrating radar is an effective method for studying bedrock under ice sheet information within sheet. Because of low conductivity relatively uniform composition sheets in polar regions, able to obtain deeper more abundant data than other geophysical methods. However, it still necessary suppress noise accurate plentiful information. this paper, entirely non-recursive Variational Mode Decomposition (VMD) applied reduction radar. VMD a...
Radio-echo sounding (RES) is widely used for polar ice sheet detection due to its wide coverage and high efficiency. The multivariate variational mode decomposition (MVMD) algorithm the processing of RES data an improvement (VMD) algorithm. It processes encompassing multiple channels. Determining most effective component combination penalty parameter (α) number intrinsic functions (IMFs) (K) fundamental affects results. α K in traditional MVMD are provided by subjective experience. We...
Abstract During the last few decades, bed-elevation profiles from radar sounders have been used to quantify bed roughness. Various methods employed, such as ‘two-parameter’ technique that considers vertical and slope irregularities in topography, but they struggle incorporate roughness at multiple spatial scales leading a breakdown their depiction of where relief is most complex. In this article, we describe new algorithm, analogous wavelet transformations, scales. The ‘Self-Adaptive...
The glacio-meteorological characteristics of Princess Elizabeth Land in East Antarctica are poorly known due to a lack measurement. This is problematic given the importance this area for understanding ice sheet dynamics and climate change. We present comprehensive approach (including field surveys, reanalysis data, remote sensing, flow models) investigate glaciological meteorological conditions vicinity new Chinese Taishan Station (73.864°S, 76.974°E) Land. collected datasets...
Remote sensing has been extensively applied in agriculture for its objectiveness and promptness. However, few applications are available monitoring natural medicinal plants. In the paper, a multilevel system, which includes satellite aerial remote sensing, as well ground investigation, was initially proposed to monitor Rheum tanguticum resource Baihe Pasture, Zoige County, Sichuan Province. The amount of R. from images is M = S*ρ S vegetation coverage obtained by imaging, whereas ρ density...
Significant reforms within Chinese state-owned enterprises (SOEs), implemented about a decade ago, shifted the authority for appointing top managers from government to board of directors, allowing market-oriented compensation these managers. In light this unique framework, study aims explore impact professional managerial system on environmental responsibility performance SOEs over period spanning 2011 2020. The empirical findings reveal positive association between implementation and SOEs....
The characterization of unconformities in wind-scoured areas the Antarctic Ice Sheet (AIS) is important for accurate estimation mass balance and can provide constraints on climate models. Here we apply radar data collected by Chinese National Research Expedition vicinity Dome A region East Antarctica to trace six isochronous internal reflecting horizons. We identify 39 map englacial stratigraphy 500 m below ice surface through cross-validation among from several austral summer campaigns...
Abstract Airborne ice-penetrating radar (IPR) is a powerful geophysical method for detecting ice thickness, subglacial topography and internal layers in the vast frigid Antarctic sheet. Data processing an essential step improving signal-to-noise ratio (SNR). In order to eliminate diagonal strip noise mainly present airborne IPR data of Amery shelf Grove Mountain regions, traditional ground penetrating methods such as F-K (frequency-wavenumber domain) filtering migration are applied. The...
Abstract. The internal layers of ice sheets from ice-penetrating radar (IPR) investigation preserve critical information about the englacial conditions and ice-flow field. This paper presents a new detailed analysis spatial distribution characteristics subglacial topography East Antarctic sheet (EAIS) Zhongshan station to Dome A. Taking layering continuity index (ILCI) basal roughness as indicators, it provides an opportunity evaluate past environment dynamics sheet. data 1244 km along...
There are persistent wind-scoured zones as gravity-driven katabatic winds pass over the locally steeper ice surface controlled by bedrock topography Dome A, East Antarctica. The extensive scour can cause significant loss during strong winds, which trigger regional changes in sheet mass balance. At present, research-based on modeling studies to predict wind-scour zone across Antarctic continental provides important information for assessing balance, but specific extent and influence range of...