Results 71 to 80 of about 221 (150)

A new precision improvement in zenith tropospheric delay estimation by GPS

, 2005
Accurate GPS-derived ZTD (zenith tropospheric delay) plays a key role in near real-time weather forecasting, especially in improving the precision of Numerical Weather Prediction (NWP) models.
Jin, SG, Park, PH
core  

Cosmic Ray Counting Variability From Water‐Cherenkov Detectors as a Proxy of Stratospheric Conditions in Antarctica

Earth and Space Science, Volume 12, Issue 11, November 2025.
Abstract This work examines atmospheric effects on cosmic ray counts observed by a Water‐Cherenkov detector at the Argentine Antarctic Marambio Station. We analyze the influence of ground‐level barometric pressure and geopotential height at various pressure levels on daily particle rates, finding the strongest association at 100 hPa, linked to ...
N. A. Santos, N. Gómez, S. Dasso, A. M. Gulisano, L. Rubinstein, M. Pereira, O. Areso, for the LAGO Collaboration   +7 more
wiley   +1 more source

Validation of precipitable water from ECMWF model analyses with GPS and radiosonde data during the MAP SOP

, 2005
Precipitable water vapour contents (PWCs) from European Centre for Medium-Range Weather Forecasts (ECMWF) analyses have been compared with observations from 21 ground-based Global Positioning System receiving stations (GPS) and 14 radiosonde stations (RS)
Flamant, Cyrille, Evelyne Richard, Cyrille Flamant, Bock, Olivier, Christian Keil, Richard, E., Olivier Bock, Bouin, M.N., Marie‐noelle Bouin, Keil, C., Keil, Christian, Richard, Evelyne   +11 more
core   +1 more source

A high-precision zenith tropospheric delay forecasting model using ET-based spatial interpolation compensation and CNN-LSTM multi-step time series prediction

Abstract Zenith Tropospheric Delay (ZTD) plays a vital role in high-precision navigation, positioning and precipitable water vapor retrieval using the Global Navigation Satellite System (GNSS). Based on the ERA5 data and hourly ZTD data provided by the Crustal Movement Observation Network of China (CMONOC) from 2011 to 2018, along with the most
Jiahao Zhang, Qin Liang, Yunqing Huang
openaire   +1 more source

Change in Tropospheric Zenith Delay in GPS Measurements during Passing of Fronts over Hokuriku Region, Japan [PDF]

, 2000
The most important meteorological product of the Global Positioning System (GPS) is the estimation of precipitable water vapor (PWV). Because there is a dense distribution of GPS sites in Japan and because the PWV can be estimated at short time intervals
里村 幹夫, 西村 昌明, 島田, 誠一, Satomura, Mikio, 0d7a3576-5655-4c54-b240-4b2d5846837c, 370, 内藤, 勲夫, 371, Nishimura, Masaaki, 372, Shimada, Seiichi, 里村, 幹夫, 211, 内藤 勲夫, 島田 誠一, Naito, Isao, 西村, 昌明, 50126778   +17 more
core  

Performance evaluation of near real-time GNSS precipitable water vapor retrieval using ultra-rapid ephemerides and SSR products

Frontiers in Astronomy and Space Sciences
IntroductionPrecipitable water vapor (PWV) is an important parameter for characterizing the spatiotemporal variability of atmospheric water vapor.
Feiyang Hu, Feiyang Hu, Feiyang Hu, Biyan Chen, Biyan Chen, Biyan Chen, Ning Huang, Ning Huang, Tiezhu Li, Tiezhu Li, Chaohui Chen, Chaohui Chen   +11 more
doaj   +1 more source

Variability and accuracy of Zenith Total Delay over the East African tropical region

, 2019
The Global Navigation Satellite System (GNSS) can be used to derive accurately the Zenith Tropospheric Delay (ZTD) under all-weather conditions. The derived ZTDs play a vital role in climate studies, weather forecasting and are operationally assimilated ...
Tagliaferro, Giulio, Barindelli, Stefano, Oruru, Bosco (author), Ssenyunzi, Richard Cliffe, Oruru, Bosco, Tagliaferro, Giulio (author), Barindelli, Stefano (author), D'ujanga, Florence Mutonyi, van de Giesen, N.C., van de Giesen, N.C. (author), Ssenyunzi, Richard Cliffe (author), D'ujanga, Florence Mutonyi (author), Realini, Eugenio (author), Realini, Eugenio   +13 more
core   +1 more source

An Interferometric Synthetic Aperture Radar Tropospheric Delay Correction Method Based on a Global Navigation Satellite System and a Backpropagation Neural Network: More Suitable for Areas with Obvious Terrain Changes. [PDF]

Sensors (Basel), 2023
Qiu L, Chen P, Yao Y, Chen H, Tang F, Xiong M.   +5 more
europepmc   +1 more source

Impacts of stochastic modeling on GPS-derived ZTD estimations

, 2004
GPS-derived ZTD (Zenith Tropospheric Delay) plays a key role in near real-time weather forecasting, especially in improving the precision of Numerical Weather Prediction (NWP) models.
Jin, S, Wang, J ; https://orcid.org/
core   +1 more source

Numerical Simulation of a Heavy Rainfall Event in Sichuan Using CMONOC Data Assimilation

Remote Sensing
This study evaluates the impact of assimilating the Crustal Movement Observation Network of China (CMONOC) global navigation satellite system (GNSS) tropospheric products on heavy-rainfall simulation over the complex terrain of the Sichuan Basin.
Xu Tang, Cheng Zhang, Angdao Wu, Rui Sun, Jiayan Liu   +4 more
doaj   +1 more source