Results 51 to 60 of about 1,750 (183)

Relatively Intense Daytime GNSS Amplitude Scintillations at Middle Latitude Linked With Multi‐Layered Strong Es Structures

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Intense Global Navigation Satellite System (GNSS) amplitude scintillations usually occur in nighttime at low latitudes due to ionospheric plasma bubble irregularities. During daytime at middle latitudes, previous studies found that the sporadic E (Es) layer could lead to GNSS amplitude scintillations, which however, is relatively weak, for ...
Wenjie Sun, Yuichi Otsuka, Guozhu Li, Zhe Yang, Yuanfa Ji, Wenbin Liang, Renjin Zhang, Xiukuan Zhao, Lianhuan Hu, Biqiang Zhao, Jianfei Liu, Guofeng Dai, Yi Li, Haiyong Xie, Baiqi Ning   +14 more
wiley   +1 more source

Comparing GPS/GLONASS, GPS and GLONASS Results in a Global Network 

Selçuk Üniversitesi Mühendislik, Bilim ve Teknoloji Dergisi, 2010
Teknolojinin  gelişimine  paralel  olarak  uydularla  konum  belirleme  önemini  gün  geçtikçe arttırmaktadır. Günümüzde global anlamda uydularla konum belirleme olarak ilk akla gelen uydu sistemi GPS’ dir. GPS en gelişmiş ve en çok tercih edilen uydu sistemidir.
ALÇAY, Salih, İNAL, Cevat
openaire   +1 more source

The Development of a Low Power GNSS System, as Part of a Drone Assisted Environmental Sensor Network for a Glacial Environment

Earth and Space Science, Volume 13, Issue 4, April 2026.
Abstract We show the development of an innovative Internet of Things Real Time Kinematic Global Navigation Satellite System, to study the short‐term changes in surface velocity of two adjacent Icelandic glaciers, in order to understand the response of glaciers to climate change.
K. Martinez, S. Attia, G. Bragg, A. Andrews, N. R. Baurley, J. K. Hart   +5 more
wiley   +1 more source

Imprint of the Quasi‐Biennial Oscillation on the Ionosphere and Thermosphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract The Quasi‐Biennial Oscillation (QBO) is a dominant mode of stratospheric variability and is known to modulate the variability of the ionosphere‐thermosphere (IT) system. However, the extent of its influence on the ionosphere‐thermosphere system remains uncertain due to weak signals and confounding with similar periodicities in solar flux.
D. Singh, L. P. Goncharenko, S. R. Zhang
wiley   +1 more source

TOMO4D Operator for Assimilation of GNSS Tomography‐Derived Water Vapor Fields Into the WRFDA 4DVAR System to Improve Regional Rainfall Forecasting

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 4, April 2026.
Abstract Accurate representation of atmospheric water vapor is crucial for improving numerical weather prediction, particularly over regions with complex topography and sparse observation networks. Although assimilation of Global Navigation Satellite System (GNSS)‐derived integrated products such as zenith total delay or precipitable water vapor can ...
Arash Tayfehrostami, Yazdan Amerian, Saeed Izanlou, Majid Azadi   +3 more
wiley   +1 more source

Testing real time kinematic gnss (GPS and GPS/glonass) methods in obstructed and unobstructed sites ; Preskušanje metod kinematične izmere gnss v realnem času (GPS in GPS/glonass) na zastrtih in nezastrtih lokacijah [PDF]

Geodetski Vestnik, 2013
This paper describes an experiment carried out with the GNSS RTK method to combine GPS and GLONASS measurements in obstructed and unobstructed sites.
Atinc Pirti, Mehmet Ali Yucel, Kutalmis Gumus   +2 more
doaj  

Ionospheric Response to the 8 April 2024 Total Solar Eclipse: Plasma Depletion and Eclipse‐Driven MsTIDs

Space Weather, Volume 24, Issue 4, April 2026.
Abstract The total solar eclipse on 8 April 2024 provided a unique opportunity to investigate the three‐dimensional (3‐D) ionospheric response under enhanced solar activity over North America. In this study, we processed high‐density GNSS observations from ∼1,700 stations to derive vertical total electron content and applied a multi‐term sinusoidal ...
Wenbin Liang, Xiyan Sun, Yuanfa Ji, Xiaodong Ren   +3 more
wiley   +1 more source

Improving GLONASS Precise Orbit Determination through Data Connection

Sensors, 2015
In order to improve the precision of GLONASS orbits, this paper presents a method to connect the data segments of a single station-satellite pair to increase the observation continuity and, consequently, the strength of the precise orbit determination ...
Yang Liu, Maorong Ge, Chuang Shi, Yidong Lou, Jens Wickert, Harald Schuh   +5 more
doaj   +1 more source

EXPERIMENTAL RESEARCHES OF THE COMBINED GNSS RECEIVER CHARACTERISTICS IN HIGH LATI-TUDES

Научный вестник МГТУ ГА, 2016
The nautical system’s conditions in high latitudes (in the area of Talakan and Igarka airfields) assisted by GLONASS, GPS and combined system GLONASS/GPS have been examined through semirealistic simulation. Nautical session’s conditions are characterized
O. N. Skrypnk, R. O. Arefev, N. G. Astrakhanceva   +2 more
doaj  

TECHNIQUE OF CONSTRUCTION AND ANALYSIS OF GLONASS FIELDS OF ACCURACY IN THE GIVEN ZONE OF AIRSPACE

Научный вестник МГТУ ГА, 2016
Based on the usage of LabView’s developed program of orbital motion modeling and the choice of satellite’s working constellation, the methodology of building-up the fields of potential accuracy GLONASS in the given airspace has been proposed. The methods
O. N. Skrypnik, R. O. Aref`ev, N. G. Astrakhanceva   +2 more
doaj