Results 81 to 90 of about 5,019 (198)

Motion Sensitivity Analysis and Terrain Correction for UAV‐Borne Gamma‐Ray Spectrometry

Geophysical Prospecting, Volume 74, Issue 7, September 2026.
ABSTRACT Uncrewed aerial vehicles (UAVs) equipped with gamma‐ray spectrometry sensors enable high‐resolution surveys but face challenges in rugged terrain. Conventional airborne gamma‐ray processing commonly approximates the source–detector geometry using a single height‐above‐ground parameter.
Neeraj Nainwal, Alexander Braun, Marshall MacNabb   +2 more
wiley   +1 more source

Localization sequences for logarithmic topological cyclic homology

Journal of Topology, Volume 19, Issue 3, September 2026.
Abstract We introduce the notion of an Ek$\mathbb {E}_k$‐ring with prelogarithmic structure, define logarithmic topological Hochschild homology and logarithmic topological cyclic homology in this context, and establish localization sequences for these theories. Our approach is based on Thom R$R$‐algebras.
John Rognes, Steffen Sagave, Christian Schlichtkrull   +2 more
wiley   +1 more source

Dune grass production is positively associated with marine nutrient subsidies on US Central Atlantic coast foredunes

Ecosphere, Volume 17, Issue 8, August 2026.
Abstract Resource subsidies, or the flow of energy across ecosystem boundaries, can influence community structure and function and act as important nutrient sources to less productive ecosystems, particularly in marine and coastal zones. Coastal dunes, connected to the nearshore through sandy beaches, likely depend on the delivery of marine subsidies ...
Katya R. Jay, Lucas Parvin, Judith Quintana, Sally D. Hacker   +3 more
wiley   +1 more source

Tides of the Midland: From Groundwater Into the River

Hydrological Processes, Volume 40, Issue 8, August 2026.
Tides in a river that is NOT influenced by the ocean, is not in the coastal area and is more than 300 m above sea level are caused by groundwater tides. As the phases of the Moon change, the amplitudes of the streamwater oscillations vary synchronously with those of gravitational acceleration.
Andrei‐Emil Briciu
wiley   +1 more source

DETERMINAÇÃO DA DIFERENÇA DE GEOPOTENCIAL DO DATUM VERTICAL BRASILEIRO RELATIVA AO EARTH GRAVITY MODEL 2008

Revista Brasileira de Cartografia, 2011
Neste trabalho são apresentadas a determinação e análise da diferença de geopotencial do Datum Vertical Brasileiro em relação ao geoide associado ao Earth Gravity Model 2008 (EGM2008).
Vagner Gonçalves Ferreira, Silvio Rogério Correia de Freitas, Bernhard Heck   +2 more
doaj  

The effect of GNSS reference station number on determining crustal deformations: a case study for October 23, 2011, Mw 7.1 Van earthquake

Geomatics, Natural Hazards & Risk
This study explores the impact of the selected GNSS reference station numbers on determining horizontal and vertical coseismic deformations resulting from the October 23, 2011, Mw 7.1 Van Earthquake in Eastern Anatolia, near Van city center.
Alpay Özdemir, Uğur Doğan
doaj   +1 more source

Spatial variability of hydrodynamics in oyster reefs: Investigating the impact of canopy density on mean and turbulent flows

Limnology and Oceanography, Volume 71, Issue 8, August 2026.
Abstract This field study investigated how oyster canopy density modulates hydrodynamics of natural intertidal oyster reef. High‐resolution velocity measurements were taken simultaneously within and above oyster canopies of variable density (solid volume fractions, Ø=$$ \mathrm{\O}= $$ 0.04–0.21).
Manisha Thenuwara, Jyotismita Taye, Peter Vien, Kelly M. Kibler   +3 more
wiley   +1 more source

Ecological Transformations of Coastal Wetlands of the Conterminous United States in Response to Contemporaneous Sea‐Level Rise

Earth's Future, Volume 14, Issue 8, August 2026.
Abstract Coastal wetlands are among the most important ecosystems on the planet but are increasingly imperiled by accelerating sea‐level rise (SLR). In the past, biogeomorphic feedbacks have allowed coastal wetlands to adjust vertically and persist through periods of accelerated SLR.
Justine A. Neville, Katya E. Kovalenko, Gregg A. Snedden, Michael J. Osland, Karen M. Thorne, Laura C. Feher, Michelle C. Moorman, Jena A. Moon, Ken W. Krauss, James B. Grace, Tiffany C. Lane, Colt R. Sanspree, Donald R. Cahoon, Glenn R. Guntenspergen   +13 more
wiley   +1 more source

Accurate Linking of Lake Erie Water Level with Shoreline Datum Using GPS Buoy and Satellite Altimetry

Terrestrial, Atmospheric and Oceanic Sciences, 2008
There is a need to accurately link the water level to the shoreline vertical datum for various applications including coastal management, lake/river/estuary/wetland hydrological or storm surge modeling/forecasting.
Kai-Chien Cheng, Chung-Yen Kuo, C. K. Shum, Xutong Niu, Rongxing Li, Keith W. Bedford   +5 more
doaj   +1 more source

Increasing Frequency of Coastal Erosion Indicated by a Hindcast Model of Storm‐Driven Forcing Calibrated With Beach Stratigraphy

Earth's Future, Volume 14, Issue 8, August 2026.
Abstract Beach stratigraphy at North Beach, Sandy Hook, New Jersey is used to calibrate a model of coastal erosion, establish a model‐based erosion threshold, and evaluate how often threshold conditions have been exceeded since 1979 through hindcast analysis.
W. John Schmelz, Kenneth G. Miller, Jonathan Liu, J. N. Stanley, James V. Browning   +4 more
wiley   +1 more source