Results 61 to 70 of about 24,711 (273)

The Once and Future Hydrology Is Whole Earth Hydrology

Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract We here argue for a new paradigm to advance pursuit of truth in global freshwater science. Our proposed Whole Earth Hydrology is hydrology that is explicitly empirical and discovery‐based, grounded in primary data, detailed at scale, and incorporates humans as essential.
Colin J. Gleason, Casey M. Brown
wiley   +1 more source

Fueling Inequity: Geospatial Analyses Reveal Racial Patterns in Vulnerability to Natural Gas Pipeline Impacts in North Carolina

GeoHealth, Volume 9, Issue 12, December 2025.
Abstract As the United States (US) has increased its domestic production of natural gas, transmission pipeline infrastructure continues to expand. Previous research highlights the environmental justice implications of this situation in the US, including fugitive methane emissions and the disproportionate concentration of pipelines in counties with high
Skye‐Anne Tschoepe, Ryan E. Emanuel, Gabrielle Moreau, Peter Cada   +3 more
wiley   +1 more source

Almost Everything You Always Wanted to Know About Representing Gravity in Global Models but Were Afraid to Ask

Journal of Advances in Modeling Earth Systems, Volume 17, Issue 12, December 2025.
Abstract For over 60 years, an approximation involving spherical geopotentials has underlain the representation of gravity in global numerical models of Earth's atmosphere and oceans. This article explores how departures from sphericity can be allowed by assuming spheroidal geopotentials instead. A route to more accurate model formulation is indicated,
Andrew Staniforth, Andy White
wiley   +1 more source

Polar Motion Dynamics on Slow‐Rotating Venus: Signatures of Mantle Flow

AGU Advances, Volume 6, Issue 6, December 2025.
Abstract With its 1 day lasting 243 days on Earth, Venus is the slowest‐spinning planet in the Solar System and its rotational bulge is anomalously small. A rotational bulge stabilizes the orientation of planets. Having only a tiny stabilizer, the rotational pole of Venus has been expected to separate from the figure pole in response to mantle flow ...
Vojtěch Patočka, Julia Maia, Ana‐Catalina Plesa   +2 more
wiley   +1 more source

Global isostatic geoid anomalies for plate and boundary layer models of the lithosphere [PDF]

Commonly used one dimensional geoid models predict that the isostatic geoid anomaly over old ocean basins for the boundary layer thermal model of the lithosphere is a factor of two greater than that for the plate model.
Hager, B. H.
core   +1 more source

Impact of global seismicity on sea level change assessment

, 2005
We analyze the effect of seismic activity on sealevel variations, by computing the time-dependent vertical crustal movement and geoid change due to coseismic deformations and postseismic relaxation effects.
Melini, D., Piersanti, A.
core   +1 more source

Observations of Small‐Scale Heterogeneity in the Upper Mantle Beneath Old Oceanic Lithosphere

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 12, December 2025.
Abstract We present tomographic images of the velocity structure of the upper mantle beneath old (∼90 ${\sim} 90$ Ma) oceanic lithosphere, derived from arrival time measurements of teleseismic body waves recorded by ocean‐bottom seismometers. Differential travel time measurements on P, S, and SKS body waves across a wide range of frequency bands show ...
A. Hariharan, Z. Eilon, J. Gaherty, J. Russell, J. Phillips, D. Forsyth   +5 more
wiley   +1 more source

Enhancing geoid modelling for accurate local geoid determination in Lagos Island: A combined GNSS and levelling approach, Eti-Osa Local Government Area, Lagos State, Nigeria

Contributions to Geophysics and Geodesy
Lagos Island faces challenges from coastal hazards and inadequate infrastructure, making precise geoid modelling essential for urban planning, flood risk assessment, and infrastructure development.
Herbert TATA, Olamilekan Babatunde OMODEJO   +1 more
doaj   +1 more source

Impact of datum transformation on local variations of geometric geoid in Niger

Geodesy and Cartography, 2017
In this study, we have conducted an investigation on the impact of the coordinates’ transformation on local variations of geometric geoid. The study area is limited by 1°43′12″ to 4°00′37″ East and 13°01′57″ to 14°31′20″ North in the southwest of the ...
Salissou Ibrahim Yahaya, El Hassan El Brirchi, Driss El Azzab   +2 more
doaj   +1 more source

Shape of the ocean surface and implications for the Earth's interior: GEOS-3 results [PDF]

A new set of 1 deg x 1 deg mean free air anomalies was used to construct a gravimetric geoid by Stokes' formula for the Indian Ocean. Utilizing such 1 deg x 1 deg geoid comparisons were made with GEOS-3 radar altimeter estimates of geoid height.
Bodine, J. H., Chapman, M. E., Kahle, H., Talwani, M.   +3 more
core   +1 more source