Results 31 to 40 of about 1,547 (182)

Regional Mapping of the Geoid Using GNSS (GPS) Measurements and an Artificial Neural Network

Remote Sensing, 2011
The determination of the orthometric height from geometric leveling has practical difficulties that, despite a number of scientific and technological advances, passed a century without substantial modifications or advances.
Reginaldo Macedônio da Silva, Alessandro Reinhardt, Sérgio Florêncio de Souza, Marcelo Tomio Matsuoka, Mauricio Roberto Veronez   +4 more
doaj   +1 more source

An Oceanographer's Guide to GOCE and the Geoid [PDF]

Ocean Science, 2006
Abstract. A review is given of the geodetic concepts necessary for oceanographers to make use of satellite gravity data to define the geoid, and to interpret the resulting product. The geoid is defined, with particular attention to subtleties related to the representation of the permanent tide, and the way in which the geoid is represented in ocean ...
Hughes, C. W., Bingham, R. J.
openaire   +6 more sources

Adjustment of the Local Gravimetric Network by Several Software Packages Using the Kazan Calibration Line as an Example

Russian Journal of Earth Sciences
Processing and adjustment of gravity measurements represent an essential scientific and practical challenge in geophysics and geodesy, necessitating efficient and reliable software solutions.
Kemerbayev Nurgan, Zhumakanov Ayan, Shkiyeva Maral, Kharisov Ayrat, Islyamova Anel', Sermiagin Roman, Zhanakulova Katima, Kalen Eraly   +7 more
doaj   +1 more source

Geophysical update of the diameter of the Zhamanshin impact structure, Kazakhstan

Meteoritics &Planetary Science, EarlyView.
Abstract The rim of the 0.9‐Ma‐old Zhamanshin impact crater in Kazakhstan is considered to be almost completely exposed via a series of hills surrounding a central flat area, indicating an apparent diameter of 14 km. This would make Zhamanshin the second largest impact crater of the Quaternary period. However, the overall geometry of these hills is not
Yoann Quesnel, Dilyara M. Kuzina, Jérôme Gattacceca, Minoru Uehara, Ayrat G. Kharisov, Dmitry D. Badyukov, Pierre Rochette   +6 more
wiley   +1 more source

Differential growth dynamics of common salt marsh species Spartina alterniflora and Juncus roemerianus under varied sediment amendments

Restoration Ecology, EarlyView.
Abstract Introduction Many coastal wetlands are at high risk of degradation or loss due to sea‐level rise. Restoration techniques for maintaining coastal marshes are paramount, with thin‐layer placement (TLP) emerging as one feasible solution. Despite TLP's utilization, additional research is needed on species‐ and sediment‐specific responses ...
Caitlin Hemphill, Richard P. Hale, Erik S. Yando   +2 more
wiley   +1 more source

Fault‐controlled uplift segmentation and crust–mantle heterogeneity in the topographic evolution of the Sındırgı Segment (Western Anatolia) ruptured during the 2025 M6.1 earthquake sequence

Earth Surface Processes and Landforms, Volume 51, Issue 8, August 2026.
Swath profile along the Sındırgı Segment. Grey curves show minimum, mean and maximum elevations, and the thick grey line shows elevation‐corrected Moho depth. Coloured circles indicate relative rock uplift from river‐profile inversion while the red curve shows cumulative uplift.
Savaş Topal, Murat Nas, Elif Akgün, Mustafa Softa   +3 more
wiley   +1 more source

Tropicalization of the Temperate Zone: Spatiotemporal Variability of Winter Warming and Declining Freeze Days Across the United States

International Journal of Climatology, Volume 46, Issue 10, August 2026.
Unique characteristics of winter daily minimum (Tmin) and maximum (Tmax) temperatures and freeze days across the conterminous United States from 1952 to 2024 are examined. Results show spatial heterogeneity in Tmin/Tmax warming rates across the tropical‐temperate transition zone in the southeastern United States, and that the highest temperature on the
Vincent M. Brown, Derek T. Thompson, Buren B. DeFee II, Michael J. Osland, Barry D. Keim   +4 more
wiley   +1 more source

How the Indian Ocean Geoid Low Was Formed

Geophysical Research Letters, 2023
The origin of the Earth's lowest geoid, the Indian Ocean geoid low (IOGL) has been controversial. The geoid predicted from present‐day tomography models has shown that mid to upper mantle hot anomalies are integral in generating the IOGL.
Debanjan Pal, Attreyee Ghosh
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

Can a Persistence‐Based Prediction of GRACE Gravity Field Coefficients Reduce Uncertainties at Finer Temporal Scales?

Earth and Space Science, Volume 13, Issue 8, August 2026.
Abstract Enhancing the applicability of Gravity Recovery and Climate Experiment (GRACE) products poses challenges due to the trade‐off between the temporal and the spatial resolution within limits posed by the mission design. If a Kalman filter framework was adopted to characterize the relationship between monthly and finer temporal scales, it could ...
D. Kankanige, B. D. Vishwakarma, Y. Y. Liu, A. Sharma   +3 more
wiley   +1 more source