Results 171 to 180 of about 195,439 (333)

Hubei STEC Data through CORS stations for DOY 059 and 061 of the year 2018 which used in (Using Real GNSS Data for Ionospheric Disturbance Remote Sensing Associated with Strong Thunderstorm over Wuhan City, manuscript submitted to Earth and Space Science Journal AGU)

, 2020
Mohamed Freeshah, Xiaohong Zhang
openalex   +1 more source

How natural are the sediments on our beaches? Characterising urban anthropogenic mixed beaches in Scotland

Sedimentology, Volume 73, Issue 2, Page 519-539, February 2026.
ABSTRACT Mixed beaches containing anthropogenic geomaterials such as bricks, concrete, glass, ceramics, tarmac and slag are globally understudied. These materials enter natural beach systems through erosion or dumping, and rising sea levels and increased storminess are expected to intensify coastal erosion, reworking and re‐exposing previously dumped ...
Yuchen Wang, Martin D. Hurst, John M. MacDonald, Kenneth Roberts, Thomas Prentice, Larissa A. Naylor   +5 more
wiley   +1 more source

A Multi‐Scale Approach to Assessing Positioning Accuracy in High‐Density Urban Environments of Hong Kong

Transactions in GIS, Volume 30, Issue 1, February 2026.
ABSTRACT This study examined GPS positioning accuracy in high‐density urban environments using Hong Kong as a representative case study. Through field measurements along 32 testing routes using three GPS devices, we evaluated GPS performance across diverse urban morphologies to assess associations between complex urban characteristics and positioning ...
Tianyu Li, Yanjia Cao, Grant McKenzie
wiley   +1 more source

Impacts of Period Offset and Period Variation on modeling seasonal signals in GNSS coordinate time series from both theoretical and practical perspectives

Geo-spatial Information Science
Global Navigation Satellite System (GNSS) coordinate time series exhibit significant periodic characteristics. The existing studies mainly focus on obtaining accurate amplitude and phase of periodic signals, while the period lengths are commonly set as ...
Zhao Li, Kaichun Yang, Weiping Jiang, Liansheng Deng, Yong Zou   +4 more
doaj   +1 more source

Seismic Velocity Variations, Ground Deformation and the Role of Fluids During a Low‐Energy Seismic Swarm

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract On March 9th $9\mathrm{th}$, 2023, three small earthquakes (3.8≤Mw≤4.5) $(3.8\le {M}_{w}\le 4.5)$ occurred near Umbertide (Central Italy), within 4 hours. Analyzing seismic ambient noise in the frequency band 0.1–1 Hz from six seismometers within 20 km of the Mw 4.5, we detect a significant drop in seismic velocity at the time of occurrence of
Eugenio Mandler, Lucia Zaccarelli, Massimo Nespoli, Maria Elina Belardinelli, Francesco Pintori, Enrico Serpelloni, Adriano Gualandi, Lauro Chiaraluce   +7 more
wiley   +1 more source

Assessment of the Tropospheric Delay Coefficients at Co-located Sites with VGOS and GNSS [PDF]

Anastasiia Walenta, Claudia Flohrer, Daniela Thaller, Rolf Dach, Stefan Schaer, G. Engelhardt, Dieter Ullrich   +6 more
openalex   +1 more source

Evaluating SWOT in the Coastal Zone: Comparisons With Tide Gauge and Airborne LiDAR in the Bristol Channel and Severn Estuary, UK

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Traditional nadir altimeters struggle with coastal water surface elevation (WSE) measurement and fine‐scale river‐estuary interactions, due to land‐water signal interference and their wide inter‐track spacing. The wide‐swath Surface Water and Ocean Topography (SWOT) mission, using a new Ka‐band radar interferometer, aims to address these ...
Youtong Rong, Paul Bates, Jeff Neal, Paul Bell, Christine Gommenginger, Ian Dougal Lichtman, Christopher Banks, Francisco J. M. Calafat, Adrien Martin, Jennifer Brown, Richard Cooke, Christopher Balfour, Michela De Dominicis, Marta Payo Payo, Simon Williams, Laurent Amoudry, Stephen Chuter, Simon Neill, Jude Chisholm, Colin J. Gleason, John Kupiec, Matt Lewis   +21 more
wiley   +1 more source

Comparative Analysis of GNSS (RTK) and Total Station-Derived Results in Topographical Mapping [PDF]

Faith Ozofu Olatunde, Michael Banji Olatunde   +1 more
openalex   +1 more source

Use of GNSS Doppler for Prediction in Kalman Filtering for Smartphone Positioning [PDF]

, 2023
Naman Agarwal, Kyle O’Keefe
openalex   +1 more source

Stress drop at the Kephalonia Transform Zone estimated from the 2014 seismic sequence [PDF]

, 2015
Bruyninx, Carine, Caporali, Alessandro, Fernandes, Rui, Ganas, Athanassios, Kenyeres, Ambrus, Lidberg, Martin, Stangl, Guenter, Steffen, Holger, Zurutuza, Joaquin   +8 more
core   +1 more source