A5005790625- Cryospheric studies and observations
- Winter Sports Injuries and Performance
- Arctic and Antarctic ice dynamics
- Geology and Paleoclimatology Research
- Landslides and related hazards
- Polar Research and Ecology
- Climate change and permafrost
- Atmospheric and Environmental Gas Dynamics
- Geophysics and Gravity Measurements
- Methane Hydrates and Related Phenomena
- Soil Moisture and Remote Sensing
- GNSS positioning and interference
- Aerospace Engineering and Energy Systems
- Remote Sensing and LiDAR Applications
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Ionosphere and magnetosphere dynamics
- Inertial Sensor and Navigation
- Species Distribution and Climate Change
- Geophysical Methods and Applications
- Adventure Sports and Sensation Seeking
- Cardiovascular Health and Disease Prevention
- Military Defense Systems Analysis
- Guidance and Control Systems
- Geomagnetism and Paleomagnetism Studies
- Geophysical and Geoelectrical Methods
Polar Research Institute of China
2016-2025
Zhejiang University
2008-2023
Xi'an Jiaotong University
2017
Chinese Academy of Sciences
2012
Hanzhong People's Hospital
2003
Abstract. We present Bedmap2, a new suite of gridded products describing surface elevation, ice-thickness and the seafloor subglacial bed elevation Antarctic south 60° S. derived these using data from variety sources, including many substantial surveys completed since original Bedmap compilation (Bedmap1) in 2001. In particular, Bedmap2 ice thickness grid is made 25 million measurements, over two orders magnitude more than were used Bedmap1. most parts Antarctica landscape visible much...
Abstract. We present Bedmap2, a new suite of gridded products describing surface elevation, ice-thickness and the seafloor subglacial bed elevation Antarctic south 60° S. derived these using data from variety sources, including many substantial surveys completed since original Bedmap compilation (Bedmap1) in 2001. In particular, Bedmap2 ice thickness grid is made 25 million measurements, over two orders magnitude more than were used Bedmap1. most parts Antarctica landscape visible much...
Abstract. One of the key components this research has been mapping Antarctic bed topography and ice thickness parameters that are crucial for modelling flow hence predicting future loss ensuing sea level rise. Supported by Scientific Committee on Research (SCAR), Bedmap3 Action Group aims not only to produce new gridded maps international scientific community, but also standardize make available all geophysical survey data points used in producing Bedmap products. Here, we document latest...
Abstract We present Bedmap3, the latest suite of gridded products describing surface elevation, ice-thickness and seafloor subglacial bed elevation Antarctic south 60 °S. Bedmap3 incorporates adds to all post-1950s datasets previously used for Bedmap2, including 84 new aero-geophysical surveys by 15 data providers, an additional 52 million points 1.9 line-kilometres measurement. These efforts have filled notable gaps in major mountain ranges deep interior East Antarctica, along West...
Abstract. We present a topographic digital elevation model (DEM) for Princess Elizabeth Land (PEL), East Antarctica. The DEM covers an area of ∼900 000 km2 and was built from radio-echo sounding data collected during four campaigns since 2015. Previously, to generate the Bedmap2 product, PEL's bed characterized low-resolution satellite gravity across otherwise large (>200 km wide) data-free zone. use mass conservation (MC) method produce ice thickness grid faster flowing (>30 m yr−1)...
ABSTRACT This article assesses the performance of surface mass balance (SMB) and temperature products from seven climate models (ERA5, MERRA2, HIRHAM5_ERA‐Interim, HIRHAM5_ERA5, MARv3.11, RACMO2.3p1 RACMO2.3p2) to be used as inputs firn densification (FDMs), crucial for whole Antarctic estimation. The evaluation compiles utilises a new dataset combining existing observations with 184 stake SMB measurements in Vostok region two radar transects Blåskimen Island Nivlisen Ice Shelf,...
Abstract Previous studies using Fourier transformation (FT) methods to analyze subglacial roughness have shown promise for distinguishing between different types of landscape from raw elevation data. We derive a two-parameter FT index {ξ, η}, where • is based on the (as previously considered in isolation), and η both bed-slope profile. In this way, we take account vertical horizontal irregularities surfaces. demonstrate statistical veracity η} consider terms obstacle amplitudes spacing, use...
Abstract. Chinese scientists will start to drill a deep ice core at Kunlun station near Dome A in the future. Recent work has predicted that is location where older than 1 million years can be found. We model flow, temperature and age of by applying three-dimensional, thermomechanically coupled full-Stokes 70 × km2 domain around station, using isotropic non-linear rheology different prescribed anisotropic fabrics vary evolution from single maximum 1/3 or 2/3 depths. The variation fabric...
The Antarctic Ice Sheet plays a critical role in global climate and sea level change resulting it being the focus of international scientific exploration. Airborne platforms have been applied to study large geographical regions Antarctica that are logistically difficult reach by other means. For 30 years Chinese expeditions, widely ground based Antarctica. During 32nd National Research Expedition (years 2015/16), first fixed-wing aircraft (Snow Eagle 601) was deployed Polar Institute China...
Abstract. Over the past 60 years, scientists have strived to understand past, present and future of Antarctic Ice Sheet. One key components this research has been mapping bed topography ice thickness parameters that are crucial for modelling flow hence predicting loss ensuing sea level rise. Supported by Scientific Committee on Research (SCAR), Bedmap3 Action Group aims not only produce new gridded maps international scientific community, but also standardize make available all geophysical...
Bed topography and roughness play important roles in numerous ice-sheet analyses. Although the coverage of ice-penetrating radar measurements has vastly increased over recent decades, significant data gaps remain certain areas subglacial need interpolation. However, bed generated by interpolation such as kriging mass conservation is generally smooth at small scales, lacking topographic features for sub-kilometer roughness. DeepBedMap, a deep learning method combined with multiple surface...
The Antarctic ice sheet and the continent both play critical roles in global sea level rise climate change but they remain poorly understood because data collection is greatly limited by remote location hostile conditions there. Airborne platforms have been extensively used Antarctica due to their capabilities flexibility contributed a great deal of knowledge continent. Snow Eagle 601 fixed-wing airborne platform has deployed China for expeditions since 2015. Scientific instruments on...
China has the world's largest population and stroke become leading cause of death in recent years. The purpose this study was to explore associations between hypertension, family history stroke, diabetes mellitus, obesity among middle-aged older farmers western China. A population-based conducted from June 2014 April 2015 Shaanxi Sichuan provinces. Twenty thousand five hundred twenty-five Chinese (≥40 years) were recruited Qinling-Daba Mountains Region Stroke Study. structured-questionnaire...
ABSTRACT We present results of a regional comparative study surface mass changes from 2004 to 2008 based on Gravity Recovery and Climate Experiment (GRACE), The Ice, Cloud Land Elevation Satellite (ICESat) CHINARE observations over the Lambert Glacier/Amery Ice Shelf system (LAS). Estimation ICESat change rates benefitted density measurements along traverse spatial adjustment method for reducing effect variations. In high-elevation inland region, positive trend was estimated both GRACE data,...
Study of the mass balance Antarctic Ice Sheet is critical to estimate its potential contribution global sea-level rise in future. As largest drainage system, Lambert Glacier–Amery Shelf system plays an important role Sheet. In this study, ice thickness measured by airborne ice-penetrating radar with high spatial resolution and accuracy accurate velocity situ GPS stations along route Chinese National Research Expedition inland traverse were used calculate flux unprecedented accuracy. This...
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 spatial correlation of ice-sounding data can be used to trace internal isochronic layers and synchronise the age-depth relationship between different ice core sites, which is difficult using existing imaging methods. In this study, we propose a new algorithm address opportunity that applying ice-sheet offers. spatial-correlation–based method fast back-projection successfully improves results with high efficiency. We give specific steps implement apply it simulate both point targets radar...
Abstract Ice cores in Antarctica and Greenland reveal ice-crystal fabrics that can be softer under simple shear compared with isotropic ice. Owing to the sparseness of ice regions away from divide, we currently lack information about spatial distribution its association flow. Radio-wave reflections are influenced by alignments, allowing them tracked provided recorded simultaneously orthogonal orientations (polarimetric measurements). Here, image variations thickness extent fabric across Dome...