Results 51 to 60 of about 25,636 (260)
Benefits of combining GPS and GLONASS for measuring ocean tide loading displacement
Journal of Geodesy, 2020 GPS has been used to estimate ocean tide loading (OTL) height displacement amplitudes to accuracies of within 0.5 mm at the M2 frequency, but such estimation has been problematic at luni-solar K2 and K1 frequencies because they coincide with the GPS ...
Majid Abbaszadeh, P. Clarke, N. Penna
semanticscholar +1 more source
Energies, 2021 In the field of air navigation, there is a constant pursuit for new navigation solutions for precise GNSS (Global Navigation Satellite System) positioning of aircraft.
K. Krasuski, D. Wierzbicki
semanticscholar +1 more source
Three‐Year Characterization of Boundary Layer Dynamics From GNSS Zenith Wet Delay Spectral Analysis
Atmospheric Science Letters, Volume 27, Issue 6, June 2026.Three years of GNSS zenith wet delay observations at Payerne reveal that spectral parameters—cutoff frequency α and variance σ2—capture robust seasonal cycles in boundary layer turbulence (R2 = 0.54 for α). Their inverse coupling tightens to r = −0.82 under summer convection, encoding regime‐dependent physics.
Gaël Kermarrec +2 more
wiley +1 more source
Spin Axis Determination of Defunct GLONASS Satellites Using Photometry Observation
Journal of Astronomy and Space Sciences, 2021 GLONASS, a satellite navigation system developed in Russia since 1976, is defunct and orbits in an unstable attitude. The satellites in these problems are not managed and there is no precise information, which can increase the risk of collisions with ...
Jeeho Lee +5 more
doaj +1 more source
On the concept of normative evaluation of cost-effectiveness of GLONASS application in coastal regions [PDF]
Baltic Region, 2011 Russia promotes the application of GLONASS satellite information system in regional economies. In three regions, the system has already been introduced and is widely used, 21 more regions are introducing the system. Experts believe that this process will
Ivchenko Vladislav, Boronilov Anatoly
doaj +1 more source
The ISCIP Analyst, Volume XIV, Issue 8 [PDF]
, 2008 This repository item contains a single issue of The ISCIP Analyst, an analytical review journal published from 1996 to 2010 by the Boston University Institute for the Study of Conflict, Ideology, and ...
Adami, Fabian +8 more
core +1 more source
The Arecibo Arp 220 Spectral Census I: Discovery of the Pre-Biotic Molecule Methanimine and New Cm-wavelength Transitions of Other Molecules [PDF]
, 2007 An on-going Arecibo line search between 1.1 and 10 GHz of the prototypical starburst/megamaser galaxy, Arp 220, has revealed a spectrum rich in molecular transitions. These include the ``pre-biotic'' molecules: methanimine (CH$_{2}$NH) in emission, three
B. Catinella +25 more
core +1 more source
Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.Abstract Medium‐Scale Traveling Ionospheric Disturbances (MSTIDs) are prominent wave‐like structures in the ionosphere, with complex generation mechanisms involving both atmospheric gravity waves (GWs) and electrodynamic instabilities such as the Perkins instability (PI).
Jing Liu +4 more
wiley +1 more source
Вестник СибАДИ, 2017 Describes a method for determining the coordinates of points on the surface based on the distance to three satellites. The method for determining the coordinates of the road and construction machinery on the surface of the Earth with the help of global ...
Mikhail Sergeevich Korytov +2 more
doaj +1 more source
Space Weather, Volume 24, Issue 6, June 2026.Abstract This study presents a detailed case study of the ionospheric impacts of moderate (G2) and severe (G4) geomagnetic storms over the Latin American sector, with particular emphasis on the formation and suppression of equatorial plasma bubbles (EPBs).
C. S. Carmo +13 more
wiley +1 more source