Results 131 to 140 of about 2,145,064 (260)

Investigating the Detectability of Body Wave Phases From Tidal Ice Cracking Events on Titan With the Dragonfly Short‐Period Seismometer

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Detecting seismic activity on Saturn's icy moon Titan during the Dragonfly mission could provide crucial information on its internal structure. The geological complexity of the moon's surface suggests significant cyclic tidal deformation, likely leading to the fracturing of the ice shell.
L. Delaroque, T. Kawamura, A. Lucas, S. Rodriguez, K. Onodera, H. Shiraishi, R. Yamada, S. Tanaka, M. P. Panning, R. D. Lorenz   +9 more
wiley   +1 more source

Atmospheric effects and spurious signals in GPS analyses [PDF]

, 2015
Improvements in the analyses of Global Positioning System (GPS) observations yield resolvable millimeter to submillimeter differences in coordinate estimates, thus providing sufficient resolution to distinguish subtle differences in analysis ...
Tregoning, Paul, Watson, Christopher Stephen   +1 more
core   +1 more source

Quantifying Seasonal Deformation Signals Using InSAR and Groundwater Models in the Mississippi River Delta, Baton Rouge, Louisiana

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 4, April 2026.
Abstract Seasonal land motion can be caused by processes above or below Earth's surface, often linked to natural changes in the hydrological cycle. In coastal deltaic systems, the coupling of water level changes between rivers and aquifers may cause significant surface deformation, but this process is poorly understood.
C. Hurtado‐Pulido, K. Materna, A. B. A. Mohamed, C. J. Ebinger, F. T.‐C. Tsai   +4 more
wiley   +1 more source

Analysis of Spatial Decorrelation of Small-Scale Tropospheric Delay Using High-Resolution NWP Data. [PDF]

Sensors (Basel), 2023
Håkegård JE, Sokolova N, Morrison A.
europepmc   +1 more source

A Window‐Augmented Machine Learning Approach for Direct GNSS Precipitable Water Vapor Retrieval

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 2, April 2026.
Abstract Global Navigation Satellite Systems (GNSS) provide an effective means for remote sensing of precipitable water vapor (PWV). However, conventional GNSS‐based PWV retrieval approaches rely heavily on auxiliary meteorological parameters, which are frequently unavailable in real time, while most direct retrieval methods use station data aggregated
Zhouao Zheng, Haoyu Wang, Liangke Huang, Ziwei Li, Haojun Li, Hongxing Zhang, Junyu Li, Lilong Liu   +7 more
wiley   +1 more source

GPS/BDS Medium/Long-Range RTK Constrained with Tropospheric Delay Parameters from NWP Model

Remote Sensing, 2018
Tropospheric delay is a major error source that affects the performance of the Global Navigation Satellite Systems (GNSS) Real Time Kinematic (RTK) positioning especially for the medium/long-range baseline.
Ying Xu, Chen Wu, Lei Li, Lizi Yan, Min Liu, Shengli Wang   +5 more
doaj   +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

Radio Astrometry Of The Triple Systems Algol And UX Arietis

, 2011
We have used multi-epoch long-baseline radio interferometry to determine the proper motion and orbital elements of Algol and UX Arietis, two radio-bright, close binary stellar systems with distant tertiary components.
Balega, Beasley, Beasley, Boboltz, Bonneau, Bower, Bruls, Chung, Csizmadia, Deller, Donati, Dzib, Fey, Fey, Fomalont, Fomalont, Fomalont, Franciosini, Glazunova, Güdel, Hartkopf, Hartkopf, Hill, J.-F. Lestrade, Lestrade, M. Güdel, Ma, Massarotti, Mutel, Nelder, Ottmann, Perryman, Press, R. L. Mutel, Reid, Reid, Retter, Richards, Ros, Ros, Ros, Rosario, Schuessler, Sjouwerman, Thompson, Torricelli-Ciamponi, Trigilio, Vogt, W. M. Goss, W. M. Peterson, Zavala, Zombeck   +51 more
core   +2 more sources

RT‐FAIRS: Real‐Time Factor‐Adjusted Ionospheric Residual Statistics Approach for Generating Accuracy Information in Global Ionospheric Maps

Space Weather, Volume 24, Issue 4, April 2026.
Abstract Ionospheric delays remain a major error source in Global Navigation Satellite Systems (GNSS). The International GNSS Service (IGS) provides Global Ionospheric Maps (GIMs) that offer vertical total electron content (VTEC) estimates together with RMS maps as accuracy information.
Ang Li, Ningbo Wang, Manuel Hernández‐Pajares, Ang Liu, Zishen Li, Axel Rülke, Andrzej Krankowski, Heng Yang, Reza Ghoddousi‐Fard, Adam Froń, Zhouyu Zhang   +10 more
wiley   +1 more source

Distance to G14.33-0.64 in the Sagittarius Spiral Arm: H2O Maser Trigonometric Parallax with VERA

, 2010
We report on trigonometric parallax measurements for the Galactic star forming region G14.33-0.64 toward the Sagittarius spiral arm. We conducted multi-epoch phase-referencing observations of an H2O maser source in G14.33-0.64 with the Japanese VLBI ...
Hirota, Tomoya, Honma, Mareki, Iwadate, Kenzaburo, Kobayashi, Hideyuki, Miyaji, Takeshi, Reid, Mark J., Sato, Mayumi, Shibata, Katsunori M.   +7 more
core   +1 more source