Assessment of ZTD derived from geodetic networks and atmospheric models [PDF]
, 2023 Cuando la señal GNSS atraviesa masas de vapor de agua (WV), la velocidad de propagación disminuye generando un retardo en el camino que recorre el pulso.
Rosell, Patricia Alejandra +5 more
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Transformer-Based Global Zenith Tropospheric Delay Forecasting Model
Remote Sensing, 2022 Zenith tropospheric delay (ZTD) plays an important role in high-precision global navigation satellite system (GNSS) positioning and meteorology. At present, commonly used ZTD forecasting models comprise empirical, meteorological parameter, and neural ...
Huan Zhang +4 more
doaj +1 more source
Evaluation of Zenith Tropospheric Delay Derived from ERA5 Data over China Using GNSS Observations
Remote Sensing, 2020 The latest reanalysis of the European Center for Medium-Range Weather Forecasts (ECMWF), ERA5, can provide atmospheric data for calculating Zenith Tropospheric Delay (ZTD) with hourly temporal resolution, which is a key factor in Global Navigation ...
Chunhua Jiang +4 more
doaj +1 more source
Atmosphere, 2023 An accurate model of the Zenith Tropospheric Delay (ZTD) plays a crucial role in Global Navigation Satellite System (GNSS) precise positioning, water vapor retrieval, and meteorological research. Current empirical models (such as the GPT3 model) can only
Min Wei +4 more
doaj +1 more source
A global grid model for the estimation of zenith tropospheric delay considering the variations at different altitudes [PDF]
Geoscientific Model Development, 2023 The accuracy of tropospheric delay correction heavily depends on the quality of the tropospheric model, and the zenith tropospheric delay (ZTD) is an important factor affecting the tropospheric delay. Therefore, it is essential to establish a precise ZTD
L. Huang +10 more
doaj +1 more source
Assessment of SIRGAS-CON tropospheric products using ERA5 and IGS
Journal of Geodetic Science, 2022 Zenith Tropospheric Delays (ZTDs) are used to correct tropospheric effects that cause a delay in the signal measured by Global Navigation Satellite Systems (GNSS) receivers and obtain accurate measurements.
Prado Anderson +2 more
doaj +1 more source
Kinematic ZTD Estimation from Train-Borne Single-Frequency GNSS: Validation and Assimilation [PDF]
Remote Sensing, 2021 Water vapour is one of the most important parameters utilized for the description of state and evolution of the Earth’s atmosphere. It is the most effective greenhouse gas and shows high variability, both in space and time. Thus, detailed knowledge of its distribution is of immense importance for weather forecasting, and therefore high resolution ...
Matthias Aichinger-Rosenberger +2 more
openaire +4 more sources
GNSS meteorology and tropospheric parameteres investigation [PDF]
Geodetski Glasnik, 2015 Troposphere plays crucial role for geodetic comunity, which can primarly be seen in its influence on GNSS observations. At the same time, troposhpere is the place where almost all hidrometeorological phenomena that effect our everyday life occure ...
Alma Tabaković +2 more
doaj +1 more source
Advances in Meteorology, 2021 The growing demand for Global Navigation Satellite System (GNSS) technology has necessitated the establishment of a vast and ever-growing network of International GNSS Service (IGS) tracking stations worldwide. The IGS provides highly accurate and highly
Samuel Osah +3 more
doaj +1 more source
Aportes al análisis y cálculo del ZTD en base a redes geodésicas y modelos atmosféricos: Assessment of ZTD derived from geodetic networks and atmospheric models [PDF]
, 2023 Cuando la señal GNSS atraviesa masas de vapor de agua (WV), la velocidad de propagación disminuye generando un retardo en el camino que recorre el pulso.
Rosell, Patricia Alejandra +2 more
core