Voxel-optimized regional water vapor tomography and comparison with radiosonde and numerical weather model

B Chen, Z Liu - Journal of geodesy, 2014 - Springer
Water vapor tomography has been developed as a powerful tool to model spatial and
temporal distribution of atmospheric water vapor. Global navigation satellite systems (GNSS) …

The ground GNSS tomography–unconstrained approach

W Rohm - Advances in Space Research, 2013 - Elsevier
The GNSS signal along its more than 20,000 km line of sight is bended, attenuated and
delayed. These effects are results of the Earth's atmosphere, and Sun radiation. Amongst all …

Limited constraint, robust Kalman filtering for GNSS troposphere tomography

W Rohm, K Zhang, J Bosy - Atmospheric Measurement …, 2014 - amt.copernicus.org
The mesoscale variability of water vapour (WV) in the troposphere is a highly complex
phenomenon and modelling and monitoring the WV distribution is a very important but …

GNSS troposphere tomography based on two-step reconstructions using GPS observations and COSMIC profiles

P Xia, C Cai, Z Liu - Annales Geophysicae, 2013 - angeo.copernicus.org
Traditionally, balloon-based radiosonde soundings are used to study the spatial distribution
of atmospheric water vapour. However, this approach cannot be frequently employed due to …

A method to improve the utilization of GNSS observation for water vapor tomography

YB Yao, QZ Zhao, B Zhang - Annales Geophysicae, 2016 - angeo.copernicus.org
Existing water vapor tomographic methods use Global Navigation Satellite System (GNSS)
signals penetrating the entire research area while they do not consider signals passing …

Optimization of GPS water vapor tomography technique with radiosonde and COSMIC historical data

S Ye, P Xia, C Cai - Annales Geophysicae, 2016 - angeo.copernicus.org
The near-real-time high spatial resolution of atmospheric water vapor distribution is vital in
numerical weather prediction. GPS tomography technique has been proved effectively for …

Monitoring urban heat island intensity based on GNSS tomography technique

P Xia, W Peng, P Yuan, S Ye - Journal of Geodesy, 2024 - Springer
Monitoring urban heat island (UHI) effect is critical because it causes health problems and
excessive energy consumption more energy when cooling buildings. In this study, we …

An optimal tropospheric tomography method based on the multi-GNSS observations

Q Zhao, Y Yao, X Cao, F Zhou, P Xia - Remote Sensing, 2018 - mdpi.com
Aside from the well-known applications (positioning, navigation and timing) brought by
Global Navigation Satellite System (GNSS), reconstruction of tropospheric atmosphere …

A method for predicting short‐time changes in fine particulate matter (PM2.5) mass concentration based on the global navigation satellite system zenith tropospheric …

M Guo, H Zhang, P Xia - Meteorological Applications, 2020 - Wiley Online Library
In this study, a method of haze prediction has been developed based on zenith tropospheric
delay (ZTD). The relationship between ZTD and fine particulate matter (PM2. 5, the main …

An optimal weighting method of global positioning system (GPS) troposphere tomography

J Guo, F Yang, J Shi, C Xu - IEEE Journal of Selected Topics in …, 2016 - ieeexplore.ieee.org
The functional model of Global Positioning System (GPS) troposphere tomography consists
of three types of equations including the observation equation, the horizontal constraint …