Results 41 to 50 of about 40,340 (249)

Deglaciation of the Burren glacio‐karst, western Ireland, during Termination 1: Implications for North Atlantic climate and karstification

open access: yesJournal of Quaternary Science, EarlyView.
Abstract The Burren uplands in western Ireland form one of the most extensive and best‐preserved examples of glacio‐karst in Europe. Subsumed by the Irish ice sheet during the Late Pleistocene, granite erratic boulders and in situ silica veins in the limestone bedrock provide a rare opportunity to reconstruct the timing and rate of deglaciation ...
Gordon Bromley   +4 more
wiley   +1 more source

A Compensation Method for the Geomagnetic Measurement Error of an Underwater Ship-Borne Magnetometer Based on Constrained Total Least Squares

open access: yesSensors
When magnetic matching aided navigation is applied to an underwater vehicle, the magnetometer must be installed inside the vehicle, considering the navigation safety and concealment of the underwater vehicle.
Yude Tong   +4 more
doaj   +1 more source

Communicating uncertainty in geomagnetic field estimates provided by the BGS to aid directional drilling [PDF]

open access: yes, 2008
Navigating underground when drilling for oil and gas has become more challenging as companies try to hit smaller targets in reservoirs already congested with existing wells.
Macmillan, Susan
core  

Multiterminal High‐Voltage Direct Current Projects: A Comprehensive Assessment and Future Prospects

open access: yesHigh Voltage, EarlyView.
ABSTRACT Multiterminal high‐voltage direct current (MT‐HVDC) systems are an important part of modern power systems, addressing the need for bulk power delivery and efficient renewable energy integration. This paper provides a comprehensive overview of recent advances in MT‐HVDC technology, including launched projects and ongoing initiatives.
Mohammad Hossein Mousavi   +3 more
wiley   +1 more source

Front Matter

open access: yesGeophysical Monograph Series, Page i-xiv., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
wiley  

+1 more source

A multisource geomagnetic field model incorporating ocean circulation-induced magnetic field

open access: yesEarth and Planetary Physics
The movement of global ocean circulation in the Earth’s main magnetic field generates a measurable induced magnetic field (about 2 nT at geomagnetic satellite altitudes).
HongBo Yao   +4 more
doaj   +1 more source

Sensory Biology of the Franciscana (Pontoporia blainvillei, Pontoporiidae, Cetartiodactyla): Ontogenetic Modifications of Vibrissae and Vibrissal Crypts

open access: yesIntegrative Zoology, EarlyView.
The transition of cetaceans from a terrestrial to an aquatic environment involved a crucial sensory adaptation to environments with limited visibility. Vibrissae, important mechanoreceptors, undergo an ontogenetic transformation in odontocetes. This research describes the histomorphology of vibrissae and crypts at different developmental stages ...
Cecilia Mariana Krmpotic   +10 more
wiley   +1 more source

Shannon information of the geomagnetic field for the past 7000 years [PDF]

open access: yesNonlinear Processes in Geophysics, 2010
The present behaviour of the geomagnetic field as expressed by the International Geomagnetic Reference Field (IGRF) deserves special attention when compared with that shown over the past few thousands of years by two paleomagnetic/archeomagnetic models ...
A. De Santis, E. Qamili
doaj  

Correlation‐based modeling and separation of geomagnetic field components [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2016
AbstractWe introduce a technique for the modeling and separation of geomagnetic field components that is based on an analysis of their correlation structures alone. The inversion is based on a Bayesian formulation, which allows the computation of uncertainties.
Holschneider, Matthias   +3 more
openaire   +3 more sources

The First Archaeomagnetic Age at Tiwanaku and Implications for Dating Andean Metallurgical Furnaces

open access: yesArchaeometry, EarlyView.
ABSTRACT This paper presents the first archaeomagnetic dating at Tiwanaku (Andean Altiplano). We compared the geomagnetic field values recorded by a metallurgical furnace against an updated SHAWQ2k‐SH global model and a regional intensity curve, both of which include, for the first time, high‐quality intensity data from the Southern Hemisphere. Results
Judit del Río   +6 more
wiley   +1 more source

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