Results 151 to 158 of about 525 (158)

A Hybrid Machine Learning Approach for Modeling Tropospheric Zenith Wet Delay with Enhanced Generalization Performance. 

Tropospheric zenith wet delay (ZWD) is one of the major error sources for space geodetic techniques and plays a vital role in meteorological research.  Accurate prior estimates for ZWD can significantly improve the performance of geodetic applications, such as precise kinematic positioning. Current single machine learning ZWD models have limitations in
Mohamed H. Sharouda, Weixing Zhang, Zhixiang Mo, Mohamed M. Elisy, Hongxing Sun, Mohamed Hosny, Yidong Lou   +6 more
openaire   +1 more source

Assessment of Global Forecast System–Derived Zenith Hydrostatic and Wet Delays and Systematic Bias Correction for Zenith Wet Delay over mainland China

Advances in Space Research
Junyu Li, Huishan Wang, Liying Cao, Hongming Li, Bao Zhang, Quanyu Chen, Jialing Liu, Lili Kuang, Siying Cao   +8 more
openaire   +1 more source

Zenith Wet Delay Retrieval Using Two Different Techniques for the South American Region and Their Comparison

International Association of Geodesy Symposia, 2014
Mattia Giovanni Crespi, FRANCISCO Javier Azpilicueta, Mauricio Gende   +2 more
exaly  

Improving zenith wet delay interploation by utilizing tropospheric gradients

2018
Zus, F., Dousa, J., Kacmarik, M., Balidakis, K., Wickert, J.   +4 more
openaire   +1 more source

Forecasting rainfall events based on zenith wet delay time series utilizing eXtreme gradient boosting (XGBoost)

Advances in Space Research
Saeed Farzaneh, Ehsan Forootan
exaly  

Empirical tropospheric zenith wet delay models with strong generalization capability based on a robust machine learning fusion algorithm

Geodesy and Geodynamics
Yunqing Huang, Qin Liang, Jiahao Zhang   +2 more
exaly  

Physical constraints for Zenith Wet Delay in Real-time Precise Point Positioning

He, S. ; https://orcid.org/0009-0003-5856-9216, Brack, A. ; https://orcid.org/0000-0001-8786-2217, Hobiger, T., Wickert, J.   +3 more
openaire   +1 more source

An inter-comparison study to estimate zenith wet delays using VLBI, GPS and NWP models

2000
Behrend, D., Cucurull, L., Vilà-Guerau de Arellano, J., Ruffini, G., Haas, R.   +4 more
openaire   +1 more source