Results 41 to 50 of about 1,220 (193)
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
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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
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Development and evaluation of the refined zenith tropospheric delay (ZTD) models [PDF]
Satellite Navigation, 2021 AbstractThe tropospheric delay is a significant error source in Global Navigation Satellite System (GNSS) positioning and navigation. It is usually projected into zenith direction by using a mapping function. It is particularly important to establish a model that can provide stable and accurate Zenith Tropospheric Delay (ZTD).
Fei Yang +4 more
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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
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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
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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
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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
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, 2021 Water vapour radiometers (WVR) provide information about temperature and humidity in the troposphere, with high temporal resolution when compared to the radiosonde (RS) observations.
Tondaś, Damian +2 more
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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
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 In recent years, precipitable water vapor has been widely used in heavy precipitation prediction, which is obtained from a conversion of the zenith total delay (ZTD) of the GNSS signal.
Haobo Li +8 more
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