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Accurate modelling and inversion of electrical resistivity data in the presence of metallic infrastructure with known location and dimension

T.C. Johnson and D. Wellman.

in Geophysical Journal International

P ublished online June 2015 .

Journal Article. Subjects: Geophysics; Oceanography and Hydrology. 8689 words.

Electrical resistivity tomography (ERT) has been widely used in environmental applications to study processes associated with subsurface contaminants and contaminant remediation....

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Acoustic isolation of a monopole logging while drilling tool by combining natural stopbands of pipe extensional waves

Yuan-Da Su, Xiao-Ming Tang, Song Xu and Chun-Xi Zhuang.

in Geophysical Journal International

P ublished online May 2015 .

Journal Article. Subjects: Geophysics; Oceanography and Hydrology. 3564 words.

For extensional wave propagation along a cylindrical pipe, there exists a natural stopband in the frequency range between the first and second modes. This study explores the feasibility and...

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Adaptive time-lapse optimized survey design for electrical resistivity tomography monitoring

Paul B. Wilkinson, Sebastian Uhlemann, Philip I. Meldrum, Jonathan E. Chambers, Simon Carrière, Lucy S. Oxby and M.H. Loke.

in Geophysical Journal International

P ublished online September 2015 .

Journal Article. Subjects: Geophysics; Oceanography and Hydrology. 8830 words.

Adaptive optimal experimental design methods use previous data and results to guide the choice and design of future experiments. This paper describes the formulation of an adaptive survey...

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Advances in GPR data acquisition and analysis for archaeology

Wenke Zhao, Gang Tian, Emanuele Forte, Michele Pipan, Yimin Wang, Xuejing Li, Zhanjie Shi and Haiyan Liu.

in Geophysical Journal International

P ublished online April 2015 .

Journal Article. Subjects: Geophysics; Oceanography and Hydrology. 5009 words.

The primary objective of this study is to evaluate the applicability and the effectiveness of ground-penetrating radar (GPR) to identify a thin burnt soil layer, buried more than 2 m below...

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The advantages of logarithmically scaled data for electromagnetic inversion

Brent Wheelock, Steven Constable and Kerry Key.

in Geophysical Journal International

P ublished online April 2015 .

Journal Article. Subjects: Geophysics; Oceanography and Hydrology. 12826 words.

Non-linear inversion algorithms traverse a data misfit space over multiple iterations of trial models in search of either a global minimum or some target misfit contour. The success of the...

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Agassiz, Alexander

Edward Lurie.

in American National Biography Online

January 1999; p ublished online February 2000 .

Reference Entry. Subjects: Manufacturing; History of Manufacturing and Construction; Marine and Estuarine Biology; Oceanography and Hydrology. 1763 words.

Agassiz, Alexander (17 December 1835–27 March 1910), marine biologist, oceanographer, and industrial entrepreneur, was born in Neuchâtel, Switzerland, the son of Louis Agassiz, a zoologist,...

Analysis of anomalous electrical conductivity and magnetic permeability effects using a frequency domain controlled-source electromagnetic method

Kyubo Noh, Seokmin Oh, Soon Jee Seol, Ki Ha Lee and Joongmoo Byun.

in Geophysical Journal International

P ublished online January 2016 .

Journal Article. Subjects: Geophysics; Oceanography and Hydrology. 8680 words.

We present a series of processes for understanding and analysing controlled-source electromagnetic (CSEM) responses for a conductive and permeable earth. To realize the CSEM response, a new...

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An analytical study of seismoelectric signals produced by 1-D mesoscopic heterogeneities

Leonardo B. Monachesi, J. Germán Rubino, Marina Rosas-Carbajal, Damien Jougnot, Niklas Linde, Beatriz Quintal and Klaus Holliger.

in Geophysical Journal International

P ublished online February 2015 .

Journal Article. Subjects: Geophysics; Oceanography and Hydrology. 10291 words.

The presence of mesoscopic heterogeneities in fluid-saturated porous rocks can produce measurable seismoelectric signals due to wave-induced fluid flow between regions of differing...

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Antarctic Climate History and Global Climate Changes

Pontus Lurcock and Fabio Florindo.

P ublished online September 2017 .

Article. Subjects: Meteorology and Climatology; Geology and the Lithosphere; Oceanography and Hydrology; Atmospheric Sciences. 11344 words.

Antarctic climate changes have been reconstructed from ice and sediment cores and numerical models (which also predict future changes). Major ice sheets first appeared 34 million years ago...

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Antarctic Climate History and Global Climate Changes

Pontus Lurcock and Fabio Florindo.

P ublished online September 2017 .

Article. Subjects: Meteorology and Climatology; Geology and the Lithosphere; Oceanography and Hydrology; Atmospheric Sciences. 11344 words.

Antarctic climate changes have been reconstructed from ice and sediment cores and numerical models (which also predict future changes). Major ice sheets first appeared 34 million years ago...

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Attenuation of elastic waves in bentonite and monitoring of radioactive waste repositories

A. Biryukov, N. Tisato and G. Grasselli.

in Geophysical Journal International

P ublished online February 2016 .

Journal Article. Subjects: Geophysics; Oceanography and Hydrology. 11745 words.

Deep geological repositories, isolated from the geosphere by an engineered bentonite barrier, are currently considered the safest solution for high-level radioactive waste (HLRW) disposal....

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Axisymmetric analysis of multilayered thermoelastic media with application to a repository for heat-emitting high-level nuclear waste in a geological formation

Yang Yang, Maria Datcheva and Tom Schanz.

in Geophysical Journal International

P ublished online June 2016 .

Journal Article. Subjects: Geophysics; Oceanography and Hydrology. 7252 words.

Comprehensive analytical solutions to 3-D axisymmetric problems for static response of multilayered thermoelastic media subjected to surface loads and containing sources are presented in...

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Baillie, Charles William (1844–1899), inventor of the Baillie sounder and marine meteorologist

Anita McConnell.

in Oxford Dictionary of National Biography

September 2004; p ublished online September 2004 .

Reference Entry. Subjects: Engineering and Technology; Oceanography and Hydrology; Transport Technology and Trades; Transport. 729 words.

Baillie, Charles William (1844–1899), inventor of the Baillie sounder and marine meteorologist, was born in Greenwich, Kent, the eldest son of Henry Robert Baillie (1808/9–1882), a master...

Barrett, Lucas (1837–1862), geologist and oceanographer

Stephen K. Donovan.

in Oxford Dictionary of National Biography

September 2004; p ublished online September 2004 .

Reference Entry. Subjects: Oceanography and Hydrology; Geology and the Lithosphere. 1189 words.

Barrett, Lucas (1837–1862), geologist and oceanographer, was born on 14 November 1837, the eldest son of George Barrett, a London iron-founder. In 1847 he was sent to Mr P. Ashton's school...

Bauzá, Felipe (1764–1834), hydrographer

Anita McConnell.

in Oxford Dictionary of National Biography

September 2004; p ublished online September 2004 .

Reference Entry. Subjects: Military History; Naval Forces and Warfare; Oceanography and Hydrology. 1008 words.

Bauzá, Felipe (1764–1834), hydrographer, was born in Palma, Majorca, in the Spanish Balearic Islands. He entered the Spanish navy at the age of fifteen, and experienced active service as he...

Bayesian inversion of marine controlled source electromagnetic data offshore Vancouver Island, Canada

Romina A.S. Gehrmann, Katrin Schwalenberg, Michael Riedel, George D. Spence, Volkhard Spieß and Stan E. Dosso.

in Geophysical Journal International

P ublished online November 2015 .

Journal Article. Subjects: Geophysics; Oceanography and Hydrology. 11028 words.

This paper applies nonlinear Bayesian inversion to marine controlled source electromagnetic (CSEM) data collected near two sites of the Integrated Ocean Drilling Program (IODP) Expedition...

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Bayesian inversion of marine CSEM data from the Scarborough gas field using a transdimensional 2-D parametrization

Anandaroop Ray, Kerry Key, Thomas Bodin, David Myer and Steven Constable.

in Geophysical Journal International

P ublished online October 2014 .

Journal Article. Subjects: Geophysics; Oceanography and Hydrology. 12148 words.

We apply a reversible-jump Markov chain Monte Carlo method to sample the Bayesian posterior model probability density function of 2-D seafloor resistivity as constrained by marine...

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Beaufort, Sir Francis (1774–1857), naval officer and hydrographer

J. K. Laughton.

in Oxford Dictionary of National Biography

September 2004; p ublished online September 2004 .

Reference Entry. Subjects: Military History; Naval Forces and Warfare; Oceanography and Hydrology. 1478 words.

Beaufort, Sir Francis (1774–1857), naval officer and hydrographer, was born on 27 May 1774 at Flower Hill, Navan, co. Meath, the second son of the Revd Daniel Augustus Beaufort (1739–1821),...

Beebe, William

Keir B. Sterling.

in American National Biography Online

January 1999; p ublished online February 2000 .

Reference Entry. Subjects: Natural History; Oceanography and Hydrology. 1525 words.

Beebe, William (29 July 1877–04 June 1962), naturalist, oceanographer, and zoological society executive, was born Charles William Beebe in Brooklyn, New York, the son of Charles Beebe, the...

Beechey, Frederick William (1796–1856), naval officer and hydrographer

J. K. Laughton.

in Oxford Dictionary of National Biography

September 2004; p ublished online September 2004 .

Reference Entry. Subjects: Military History; Naval Forces and Warfare; Oceanography and Hydrology. 831 words.

Beechey, Frederick William (1796–1856), naval officer and hydrographer, son of Sir William Beechey, RA (1753–1839), and his second wife, Anne Phyllis Beechey, née Jessop (1764–1833) [see...