Results 41 to 50 of about 732,198 (160)

High-Precision ZTD Model of Altitude-Related Correction

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Zenith tropospheric delay (ZTD) is one of the main error sources in space geodesy. The existing regional or global models, such as Global Pressure and Temperature 3 (GPT3), Global Tropospheric model, Global Hopfield, and Shanghai Astronomical observatory
Qingzhi Zhao, Jing Su, Chaoqian Xu, Yibin Yao, Xiaoya Zhang, Jifeng Wu   +5 more
doaj   +1 more source

Performance Evaluation of Blind Tropospheric Delay correction Models over Africa [PDF]

, 2015
Tropospheric delay is a major error source in positioning by Global Navigation Satellite Systems (GNSS). Many techniques are available for tropospheric delay mitigation consisting of surface meteorological  models and global empirical models.
Combrinck, Ludwig, Botai, Joel, Isioye, Olalekan Adekunle   +2 more
core   +1 more source

Analisis Variasi Temporal-Spasial Nilai Zenith Tropospheric Delay Menggunakan Data CORS di Provinsi Jawa Timur [PDF]

, 2021
Global Navigation Satellite System (GNSS) semakin dikembangkan sebagai sistem penginderaan jauh atmosfer, salah satunya melalui perhitungan Zenith Tropospheric Delay (ZTD).
Handoko, Eko Yuli, Mannani, Norma Aji Cemara   +1 more
core   +1 more source

SHAtropE—A Regional Gridded ZTD Model for China and the Surrounding Areas

Remote Sensing, 2020
A regional zenith tropospheric delay (ZTD) empirical model, referred to as SHAtropE (SHanghai Astronomical observatory tropospheric delay model—Extended), is developed and provides tropospheric propagation delay corrections for users in China and ...
Junping Chen, Jungang Wang, Ahao Wang, Junsheng Ding, Yize Zhang   +4 more
doaj   +1 more source

Empirical modeling of tropospheric delays with uncertainty [PDF]

Geoscientific Model Development
Accurate modeling of tropospheric delay is important for high-precision data analysis of space geodetic techniques, such as the Global Navigation Satellite System (GNSS).
J. Wang, J. Wang, J. Wang, J. Chen, J. Chen, J. Chen, Y. Zhang   +6 more
doaj   +1 more source

Comprehensive Analysis of the Global Zenith Tropospheric Delay Real-Time Correction Model Based GPT3

, 2023
To obtain a higher accuracy for the real-time Zenith Tropospheric Delay (ZTD), a refined tropospheric delay correction model was constructed by combining the tropospheric delay correction model based on meteorological parameters and the GPT3 model.
Yushuang Jiang, Chao Liu, Jian Chen, Xingwang Zhao, Ya Fan   +4 more
core   +1 more source

Mitigating Elevation-Dependent Errors in Tropospheric Delay Interpolation for InSAR Applications [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Interferometric Synthetic Aperture Radar (InSAR) is a powerful tool for detecting ground deformation with millimeter precision. However, atmospheric effects, particularly tropospheric delays, significantly degrade the accuracy of InSAR-derived ...
E. Nekouzade Chaharmahali, J. Asgari
doaj   +1 more source

Determination of Zenith Tropospheric Delay (ZTD) Using CORS GNSS Data, 2016 – 2020 In Lampung

Jurnal Inotera
GNSS satellites transmit signals in the form of electromagnetic waves to ground-based observation stations (receivers). As these signals pass through the atmosphere - particularly the troposphere - they undergo delays and bending due to differences in atmospheric properties.
null Een Lujainatul Isnaini, null Hafiz Mardian Abdussalam, null Redho Surya Perdana, null Akbar Wahyu Nugraha, null Aulia Try Atmojo   +4 more
openaire   +1 more source

Assimilation of 5G Base Station Networks as Ultra‐Dense Atmospheric Sensors for Advancing Heavy Rainfall Prediction

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract The zenith total delay (ZTD) retrieved from 5G communication base stations represents a novel observation source for numerical weather prediction (NWP), leveraging the extensive global deployment of 5G infrastructure. In this study, the direct assimilation of 5G‐ZTD observations into a high‐resolution NWP system was accomplished for the first ...
Jian Yin, Xiefei Zhi, Danni Huang, Chunqing Shang, Hong Liang, Kezuan Wang   +5 more
wiley   +1 more source

GPS-Derived zenith tropospheric delay assimilation into numeric atmosphere model [PDF]

, 2014
© 2014 SPIE. The total zenith tropospheric delay (ZTD) is an important parameter of the atmosphere and directly or indirectly reflects the weather processes and variations.
Khutorova O., Khutorov V., Jouravlev A., Krasnov V.   +3 more
core