Results 101 to 110 of about 26,941 (300)

A numerical test of the topographic bias

Journal of Geodetic Science, 2018
In 1962 A. Bjerhammar introduced the method of analytical continuation in physical geodesy, implying that surface gravity anomalies are downward continued into the topographic masses down to an internal sphere (the Bjerhammar sphere).
Sjöberg L.E., Joud M.S.S.
doaj   +1 more source

Report of the panel on plate motion and deformation, section 2 [PDF]

Given here is a panel report on the goals and objectives, requirements and recommendations for the investigation of plate motion and deformation. The goals are to refine our knowledge of plate motions, study regional and local deformation, and contribute
Bock, Yehuda, Kastens, Kim A., Mcnutt, Marcia K., Minster, J. Bernard, Peltzer, Gilles, Prescott, William H., Reilinger, Robert E., Royden, Leigh, Rundle, John B., Sauber, Jeanne M.   +9 more
core   +1 more source

Towards the boundary of the fine curve graph

Journal of Topology, Volume 19, Issue 2, June 2026.
Abstract The fine curve graph was introduced as a geometric tool to study homeomorphisms of surfaces. In this paper, we study the Gromov boundary of this space and the local topology near points associated with certain foliations and laminations. We then give several applications including finding dynamically explicit elements with positive stable ...
Jonathan Bowden, Sebastian Hensel, Richard Webb   +2 more
wiley   +1 more source

Using the geodetic and hydroacoustic measurements toinvestigate the bathymetric and morphometric parameters ofLake Hancza (Poland)

Open Geosciences, 2015
Most of the inland lakes do not have up-to-datebathymetry. However, a significant progress in surveyingtechnologies creates a possibility to quickly and accuratelydescribe the underwater environment.
Popielarczyk Dariusz, Templin Tomasz, Łopata Michał   +2 more
doaj   +1 more source

The significance of the Skylab altimeter experiment results and potential applications [PDF]

The Skylab Altimeter Experiment has proven the capability of the altimeter for measurement of sea surface topography. The geometric determination of the geoid/mean sea level from satellite altimetry is a new approach having significant applications in ...
Gopalapillai, S., Kuhner, M., Mourad, A. G.   +2 more
core   +1 more source

An Upper Bound on Carbon Emissions of Drained Peat Soil Grasslands From Satellite Radar Interferometry

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Drained and cultivated grasslands on peat soils behave as a significant source of greenhouse gasses by oxidation. However, the lack of empirical estimates of carbon losses from peatlands with adequate spatial and temporal resolution has forced researchers to rely on process‐based model approximations to make quantitative, regional‐ or national‐
Philip Conroy, Ramon F. Hanssen
wiley   +1 more source

GRENet: GNSS‐Enhanced Radar Extrapolation Network for Precipitation Nowcasting

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Accurate precipitation nowcasting is one of the most challenging tasks in atmospheric sciences. The current methods of nowcasting primarily rely on inferring precipitation from radar reflectivity, which inevitably leads to uncertainties in forecasts due to the limitations of single radar data in capturing the detailed initial conditions of ...
Cuixian Lu, Quanfei Wang, Yuxin Zheng, Xiaohong Zhang, Jiafeng Li, Xuanzhen Zhang, Galina Dick, Jonathan Jones   +7 more
wiley   +1 more source

Geometrical geodesy techniques in Goddard earth models [PDF]

The method for combining geometrical data with satellite dynamical and gravimetry data for the solution of geopotential and station location parameters is discussed. Geometrical tracking data (simultaneous events) from the global network of BC-4 stations
Lerch, F. J.
core   +1 more source

Spin Transition of Fe3+ in δ‐(Al,Fe)OOH and Implication for Mid‐Lower Mantle Seismic Heterogeneities

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract δ‐(Al,Fe)OOH is an important water carrier and plays a critical role on Earth's deep water cycle. Lattice parameters of δ‐(Al0.89Fe0.11)OOH were measured by synchrotron single‐crystal X‐ray diffraction at simultaneously high temperature and pressure up to 65 GPa and 800 K in diamond anvil cells.
Chaoshuai Zhao, Zhu Mao, Xinyue Zhang, Yingxin Yu, Ningyu Sun, Jianbo Zhang, Yuzhu Wang, Takayuki Ishii   +7 more
wiley   +1 more source

Dynamic Coupling Between Faulting, Rifting and Magmatism During 2021‐2025 Unrest on Reykjanes Peninsula, Iceland

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Interactions among faulting, earthquakes, and eruptions are fundamental to plate tectonics and hazard forecasting yet rarely observed along mid‐ocean ridges. On Iceland's Reykjanes Peninsula, seismotectonic–volcanic unrest resumed after nearly 800‐year hiatus, providing an opportunity to observe these interactions during 2021–2025 activity. By
Tomáš J. Fischer, Pavla Hrubcová, Josef Vlček, Gregory P. De Pascale, Thorvaldur Thordarson, Halldór Geirsson, Anthony Lomax, Robert Skoumal   +7 more
wiley   +1 more source