Results 111 to 120 of about 200 (130)

Improved Drought Monitoring Index Using GNSS-Derived Precipitable Water Vapor over the Loess Plateau Area. [PDF]

Sensors (Basel), 2019
Zhao Q, Ma X, Yao W, Liu Y, Du Z, Yang P, Yao Y.   +6 more
europepmc   +1 more source

Application of ray-traced tropospheric slant delays to geodetic VLBI analysis. [PDF]

J Geod, 2017
Hofmeister A, Böhm J.
europepmc   +1 more source

Evaluation of Empirical Tropospheric Models Using Satellite-Tracking Tropospheric Wet Delays with Water Vapor Radiometer at Tongji, China. [PDF]

Sensors (Basel), 2016
Wang M, Li B.
europepmc   +1 more source

Short-term rainfall forecast model based on the improved BP-NN algorithm. [PDF]

Sci Rep, 2019
Liu Y, Zhao Q, Yao W, Ma X, Yao Y, Liu L.   +5 more
europepmc   +1 more source

Development and Positioning Accuracy Assessment of Single-Frequency Precise Point Positioning Algorithms by Combining GPS Code-Pseudorange Measurements with Real-Time SSR Corrections. [PDF]

Sensors (Basel), 2017
Kim M, Park KD.
europepmc   +1 more source

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Establishment and assessment of a zenith wet delay (ZWD) augmentation model

GPS Solutions, 2021
The zenith wet delay (ZWD) accuracy is one of the most important factors affecting the convergence time and the positioning precision in precise point positioning processing. Taking into account the limitation of the empirical and blind ZWD models, the correlations between the ZWD and temperature and water vapor pressure at each point of the global 1o ×
Jiming Guo, Jingui Zou, Fei Yang
exaly   +2 more sources

Assimilation of Zenith Wet Delay observations using the ensemble Kalman Filter in a Poly-ZWD empirical model over the USA

Journal of Atmospheric and Solar-Terrestrial Physics
Modeling the spatial and temporal variability of water vapor in the lower atmosphere is crucial for meteorological and geodetic applications, as it directly influences weather prediction and satellite-based positioning. However, traditional empirical models often struggle to capture rapid water vapor fluctuations, limiting their accuracy and practical ...
Saeed Farzaneh, Ehsan Forootan
exaly   +3 more sources

Establishing Zenith Wet Delay model (ZWD) and developing a framework for generating high resolution PWV for extreme weather monitoring using MT-InSAR and GNSS for Indian Himalayan region 

Precipitable water vapor (PWV), an essential climate variable enlisted by the Global Climate Observing System (GCOS), can be efficiently mapped using popular Earth Observation techniques like Global Navigation Satellite System (GNSS) and Interferometric Synthetic Aperture Radar (InSAR). When used in a combination, these techniques complement each other
shivika saxena, chandrakanta ojha, ramji dwivedi   +2 more
openaire   +1 more source

Developing a new combined model of zenith wet delay by using neural network

Advances in Space Research, 2022
exaly  

Tibetan zenith wet delay model with refined vertical correction

Journal of Geodesy, 2023
Chaoqian Xu, Yibin Yao, Chen Liu
exaly