Results 31 to 40 of about 347,574 (237)

Assessment of the Water Vapor Tomography Based on Four Navigation Satellite Systems and Their Various Combinations

open access: yesRemote Sensing, 2022
With the gradual improvement of Galileo and the opening of BDS-3 services, water vapor tomography based on multi-GNSS can be effectively carried out to reconstruct three-dimensional water vapor distribution.
Fei Yang   +5 more
doaj   +1 more source

Determination of Algerian Weighted Mean Temperature Model for forthcoming GNSS Meteorology Application in Algeria

open access: yesJournal of the Korean Society of Surveying Geodesy Photogrammetry and Cartography, 2012
Dongseob Song, S. Boutiouta
semanticscholar   +3 more sources

Optimizing Boundary Conditions in GNSS Tomography: A Continuous 7‐Month Case Study in the Amazon

open access: yesGeophysical Research Letters, 2023
Different estimates of the regional water vapor scale height, taken from ERA5 reanalysis, in situ observations and the direct optimization of retrieved water vapor profiles in GNSS tomography, are found to have major impact in the performance of ...
P. M. A. Miranda   +4 more
doaj   +1 more source

Kinematic ZTD Estimation from Train-Borne Single-Frequency GNSS: Validation and Assimilation

open access: yesRemote 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.
Matthias Aichinger-Rosenberger   +2 more
doaj   +1 more source

Modelling Precipitable Water Vapour (PWV) Over Nigeria from Ground-Based GNSS

open access: yesGeoplanning: Journal of Geomatics and Planning, 2021
Global Navigational Satellite System (GNSS) over the past and present time has shown a great potential in the retrieval of the distribution of water vapour in the atmosphere.
Bawa Swafiyudeen   +5 more
doaj   +1 more source

Retrieving Precipitable Water Vapor From Shipborne Multi‐GNSS Observations [PDF]

open access: yes, 2019
©2019. American Geophysical UnionPrecipitable water vapor (PWV) is an important parameter for climate research and a crucial factor to achieve high accuracy in satellite geodesy and satellite altimetry. Currently Global Navigation Satellite System (GNSS)
Ge, Maorong   +8 more
core   +1 more source

GNSS Meteorology for Disastrous Rainfalls in 2017–2019 Summer in SW Japan: A New Approach Utilizing Atmospheric Delay Gradients

open access: yesFrontiers in Earth Science, 2020
We studied disastrous heavy rainfall episodes in 2017–2019 summer in SW Japan, especially in the Kyushu region using tropospheric delay data from the Japanese dense global navigation satellite system (GNSS) network GEONET (GNSS Earth Observation Network).
Syachrul Arief, K. Heki
semanticscholar   +1 more source

Utilization of Signal Global Navigation Satellite System (GNSS) for Meteorological [PDF]

open access: yesInternational Journal of Environment, Agriculture and Biotechnology, 2021
In this study, I show that microwave signals emitted from satellites and received by the GNSS system can be utilized for meteorological purposes, such as heavy rain in Indonesia, using open-source software goGPS. Comparison of the gradient of the North and East atmospheric delays between goGPS, IGS, and UNR. The correlation of the results of goGPS with
openaire   +1 more source

New GNSS tomography of the atmosphere method – proposal and testing

open access: yesGeoinformatics FCE CTU, 2012
Paper is focused on GNSS meteorology which is generally used for the determination of water vapour distribution in the atmosphere from GNSS measurements.
Michal Kačmařík, Lukáš Rapant
doaj   +1 more source

Estimating integrated water vapor trends from VLBI, GPS,and numerical weather models: sensitivity totropospheric parameterization [PDF]

open access: yes, 2018
©2018. American Geophysical UnionIn this study, we estimate integrated water vapor (IWV) trends from very long baseline interferometry (VLBI) and global navigation satellite systems (GNSS) data analysis, as well as from numerical weather models (NWMs ...
Balidakis, Kyriakos   +6 more
core   +1 more source

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