A5102846355- Geophysics and Gravity Measurements
- GNSS positioning and interference
- Ionosphere and magnetosphere dynamics
- Hydrology and Drought Analysis
- Meteorological Phenomena and Simulations
- Climate variability and models
- Precipitation Measurement and Analysis
- Cryospheric studies and observations
- Hydrological Forecasting Using AI
- Landslides and related hazards
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Soil Moisture and Remote Sensing
- Atmospheric aerosols and clouds
- 3D Surveying and Cultural Heritage
- Remote-Sensing Image Classification
- Hydrocarbon exploration and reservoir analysis
- Remote Sensing and LiDAR Applications
- Advanced Measurement and Metrology Techniques
- Geoscience and Mining Technology
- Advanced Theoretical and Applied Studies in Material Sciences and Geometry
- Arctic and Antarctic ice dynamics
- Remote Sensing and Land Use
- Tropical and Extratropical Cyclones Research
- Atmospheric Ozone and Climate
- Inertial Sensor and Navigation
PowerChina (China)
2016-2025
Xi'an University of Technology
2025
China Power Engineering Consulting Group (China)
2022-2025
GPS-based Zenith Tropospheric Delay (ZTD) estimation should be easily obtained in a cost-effective way, however, the most previous studies focus on post-processed ZTD estimates using satellite orbit and clock products with at least 3-9 hours latency provided by International GNSS Service (IGS), which limits meteorological application for nowcasting. With development of IGS's real-time pilot project (RTPP), this limitation was removed April, 2013 as can on-line. In paper, one hand,...
Atmospheric water vapor is one of the important parameters for weather and climate studies. Generally, atmospheric can be monitored by some techniques, such as Global Navigation Satellite System (GNSS), radiosonde (RS), remote sensing numerical forecast (NWF). However, comprehensive retrieval application precipitable (PWV) using multi techniques has been hardly performed before, which becomes focus this study. A PWV platform (CPRAP) first established combing ground-based space-based...
Compared with traditional deformation monitoring methods, GBSAR has the advantages of all-weather, near real-time and high spatial-temporal resolution, which provides an effective method for local region. In this paper, slope mining area is continuously monitored by using during treatment period. The results time series show that maximum cumulative displacement 3.8 mm at same time, in order to verify accuracy GBSAR, experiments are carried out. difference between actual value was -0.37mm,...
The Huaihe River Basin is particularly vulnerable to climate change. This paper first evaluated interpolation methods for different meteorological elements, followed by an assessment of the simulation performance various Coupled Model Intercomparison Project 5 (CMIP5) Global Climate Models (GCMs) these elements. We then applied Improved Quantile Mapping (IQM) method bias correction GCMs. Finally, we analyzed characteristics future change in Basin. results show following: (1) radial basis...
Extreme rainfall is the main contributing factor to landslides. Therefore, it of great significance monitor and forecast short-term in landslide-prone areas. However, spatial scale areas small, traditional numerical models have difficulty accurately forecasting on this scale. To solve above problem, study proposes a method for by combining back-propagation neural network (BP-NN) algorithm global navigation satellite system (GNSS) observations achieve accurate Firstly, high-precision...
Precipitable water vapor (PWV) is one of the key parameters in evolution extreme weather and climate change. However, current data fusion methods (such as Gaussian processes, spherical cap harmonics, polynomial fitting) can hardly obtain simultaneously PWV map with high precision spatiotemporal resolution. To solve this problem, a two-step-based (TPF) method proposed, which hybrid model (HPFM) spatial temporal (STFM) are introduced separately. In first step, HPFM established by combining...
Offset tracking technology is widely studied to evaluate glacier surface displacements. However, few studies have used a cross-platform this end. In study, two heterogeneous data sources, Sentinel-1 and Landsat 8, from January 2019 2021, were estimate the offset, then optimal estimation of 3D deformation rate Himalayan was obtained based on joint model variance component estimation. The results show that maximum rates in east–west direction, north–south vertical direction are 85, 126, 88...
Potential evapotranspiration (PET) is a key parameter for calculating drought monitoring index that generally difficult to obtain. In addition, PET has low spatial resolution and can only be obtained at site-based point. Therefore, retrieving with high precision, resolution, less meteorological data becomes the focus of this paper. paper, high-precision high-spatial-resolution (HDM) model was established accurately calculate by using zenith troposphere delay (ZTD) derived from global...
As one of the important factors in atmospheric physical and chemical processes, aerosol optical depth (AOD) has an impact on regional global climate. Therefore, monitoring predicting temporal spatial changes AOD is considerable significance. Existing methods mainly use a large number meteorological parameters ground observations to forecast AOD. However, modeling data are numerous difficult obtain practically. In this study, adaptive forecasting (AAF) model proposed using zenith total delay...
Atmospheric weighted mean temperature (Tm) is a key parameter used by the Global Navigation Satellite System (GNSS) for calculating precipitable water vapor (PWV). Some empirical Tm models using meteorological or non-meteorological parameters have been proposed to calculate PWV, but their accuracy and reliability cannot be guaranteed in some regions. To validate determine optimal model PWV retrieval China, this paper analyzes evaluates typical models, namely, Linear, Pressure Temperature 3...
Currently, engineering construction is placing increasing demands on the accuracy of measurement. Projection deformation has a significant effect measurement accuracy, representing challenge in field high-precision In case Gauss-Krüger projection arbitrary zone, setting reference position center survey area will not necessarily guarantee minimum possible deformation. This article presents method for determining based standard maximum deformation, along with applicable range parameter....
Accurate water vapor information is crucial for improving the quality of numerical weather forecasting. Previous studies have incorporated tropospheric data obtained from a global navigation satellite system (GNSS) into models to enhance accuracy and reliability rainfall forecasts. However, research on evaluating forecast different levels development corresponding forecasting platforms lacking. This study develops establishes platform supported by GNSS-assisted (WRF) model, quantitatively...