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Measurement of variations in Earth's gravitational field
gradiometer was famously exposed in the film The Hunt for Red October released in 1990. There are two types of Lockheed Martin gravity gradiometers currently
Gravity_gradiometry
Scientific instrument to measure gradients from physical properties
A gradiometer measures the gradient (numerical rate of change) of a physical quantity, such as a magnetic field or gravity. There are at least two types
Gradiometer
Device that measures magnetism
submerged objects. Fluxgate gradiometers are popular due to their compact configuration and relatively low cost. Gradiometers enhance shallow features and
Magnetometer
ESA satellite to map Earth's gravity field
spacecraft's primary instrumentation was a highly sensitive gravity gradiometer consisting of three pairs of accelerometers which measured gravitational
GOCE
1990 film directed by John McTiernan
billion dollar black project, the development of a full-tensor gravity gradiometer by Bell Aerospace was a classified technology at the time. It was thought
The Hunt for Red October (film)
The_Hunt_for_Red_October_(film)
Instrument used to measure the inclination of a surface relative to local gravity
tilt sensor, tilt meter, slope alert, slope gauge, gradient meter, gradiometer, level gauge, level meter, declinometer, and pitch & roll indicator.
Inclinometer
Non-invasive physical sensing techniques used for archaeological imaging or mapping
between the sensors). In most archaeological applications the latter (gradiometer) configuration is preferred because it provides better resolution of
Geophysical survey (archaeology)
Geophysical_survey_(archaeology)
Property of space that quantifies the magnetic influence at a given location
Magnetic gradiometer map of Prehistoric fire-hearths
Magnetic_field
Type of magnetometer
μcalib. In practice the pickup coil consists of multiple windings in a gradiometer setup (usually of 2nd order), which measures not the moment but its spatial
SQUID
Magnetic detection of archaeological artefacts and features
between the sensors). In most archaeological applications the latter (gradiometer) configuration is preferred because it provides better resolution of
Magnetic_survey_(archaeology)
Study of human activity based on materials left behind
Surveying in Archaeology. More than 10 years of using the Overhauser GSM-19 gradiometer". Wormianum. David Hurst Thomas – Archaeology, 3rd. ed. (1998) Robert
Archaeology
Powered lighter-than-air aircraft
Kalahari Desert. A Zeppelin NT, equipped with a Bell Geospace gravity gradiometer, was used to find potential diamond mines by scanning the local geography
Airship
Sub-discipline of Archaeology
metal detectors can easily miss or record misleading data. A fluxgate gradiometer records anomalies in the Earth’s magnetic field across a specific area
Battlefield_archaeology
Class of airship
and then flown to Gaborone where a Lockheed Martin full tensor gravity gradiometer was installed. This instrument, owned and operated by Bell Geospace,
Zeppelin_NT
Planned Chinese–European satellite
mounted on SMILE's main body. This configuration will let the MAG act as a gradiometer, and allow SMILE's background magnetic field to be accurately determined
SMILE_(spacecraft)
Process of monitoring and controlling the movement of a craft or vehicle
ISBN 978-3-11-080023-4. Affleck, C.A.; Jircitano, A. (1990). "Passive gravity gradiometer navigation system". IEEE Symposium on Position Location and Navigation
Navigation
Prehistoric site in Louisiana, US
cores and downed cored holes to understand features identified by the gradiometer surveys as well as the construction of the ridges and plaza. The Louisiana
Poverty_Point
Interferometer which uses the wave-like nature of atoms
interferometers include accelerometers, rotation sensors, and gravity gradiometers. Interferometry splits a wave into a superposition along two different
Atom_interferometer
American physicist and writer (1932–2002)
cruciform gravity gradiometer or 'Forward Mass Detector', for Lunar Mascon (mass concentration) measurements. The gravity gradiometer is described in the
Robert_L._Forward
Planned sample-return mission by Japan to Phobos
Earth as part of the sample-return portion of the mission. The Gravity GradioMeter (GGM), Laser-Induced Breakdown Spectroscope (LIBS), Mission Survival
Martian_Moons_eXploration
Systematic collection of geophysical data for spatial studies
gravitational data is measured with the help of gravitational wave sensor or gradiometer by placing it in different locations at different instances of time.
Geophysical_survey
Roman fort in Llanio, West Wales
materials had been removed, and no firm dating evidence was found. A gradiometer geophysical survey of 2005, 75m to the west of the fort, plotted the
Bremia_(fort)
Process of extraction of uranium ore from the ground
throughout the world. Many countries are conducting complete aeromagnetic gradiometer radiometric surveys to get an estimate the size of their undiscovered
Uranium_mining
Castle in Scotland
Scotland carried out measured and geophysical (using resistivity and a gradiometer) surveys at Tibbers with funding from Historic Scotland and the Castle
Tibbers_Castle
American physicist (1935–2020)
nano-particles, he had collaborated in the development of a novel Hall gradiometer for their magnetic characterization. His innovations in nano-magnetic
Stephan_von_Molnár
Local variation in the Earth's magnetic field
used in most ground surveys except for boreholes and high-resolution gradiometer surveys. Optically pumped magnetometers, which use alkali gases (most
Magnetic_anomaly
Device measuring quantum mechanical effects
could become a novel whole-brain scanning approach. Quantum gravity-gradiometers that could be used to map and investigate subterraneans are also in development
Quantum_sensor
United States historic place
Site (14MP301) is an historic site in Lindsborg, Kansas. A magnetic gradiometer survey of the site has been conducted. The site was occupied from circa
Sharps_Creek_Site
ground level GR – gamma ray GR – gauge ring (measure hole size) GRAD – gradiometer log GRE – ground elevation GRLOG – grapholog[check spelling] GRN – gamma
List of abbreviations in oil and gas exploration and production
List_of_abbreviations_in_oil_and_gas_exploration_and_production
Instrument which measures very small variations in the Earth's magnetic field
Smekalova T. N., Voss O., Smekalov S. L. "Magnetic Surveying in Archaeology: More than 10 years of using the Overhauser GSM-19 gradiometer", Wormianum, 2008.
Proton_magnetometer
Earthworks in Wiltshire, England
survey was conducted which covered 46% of the interior using a fluxgate gradiometer. The results of this survey were, again, inconclusive, although no evidence
Figsbury_Ring
Grade II listed building in England
Thoroton Society of Nottinghamshire Vol. 64. Masters, P (2004). "Fluxgate Gradiometer and Resistivity Surveys: King John's Palace, Clipstone, Nottinghamshire"
King_John's_Palace
Measurement of the strength of a gravitational field
Steady-State Ocean Circulation Explorer (GOCE) – A modern satellite-borne gradiometer containing pairs of gravimeters (accelerometers), launched March 2009
Gravimetry
Measurement of the Earth using satellites
and structural stability. Example: Seasat, TerraSAR-X A gravity gradiometer can independently determine the components of the gravity vector on a
Satellite_geodesy
City-state in ancient Sumer
enclosed Larsa, with six main gates. Magnetic surveys using a caesium gradiometer have discovered a massive baked brick water gate in the 15 meter wide
Larsa
magnetometry: Fractional-turn SQUID, improving the coupling efficiency SQUID gradiometer, improving sensitivity to nearby fields In addition, in the late 1970s
James_Edward_Zimmerman
Russian-American physicist
applications in MRI and materials science. His 2006 prototype atomic gradiometer used nonlinear magneto-optical rotation in antirelaxation-coated cells
Dmitry_Budker
Device for measuring a physical quantity
found in conjunction with defining or applying technical standards. Gradiometer any device that measures spatial variations of a physical quantity. For
List_of_measuring_instruments
Nature reserve in Devon, England
entrance to the interior of the fort. Research using earth resistance and gradiometer surveys has produced good data, but interpretation is difficult because
Hillsborough,_Devon
Castle in Tempsford, Bedfordshire, England
1 December 2006, by geophysical engineers, in the form of a Fluxgate Gradiometer survey. Restoration of Gannocks Castle was begun in 1998, with an opening
Gannocks_Castle
Book by Kenneth L. Feder
as Lidar, ground-penetrating radar, and magnetometry using a fluxgate gradiometer. Creationism is the insistence that biblical creation stories are facts
Frauds,_Myths,_and_Mysteries
Indian physicist
via atom interferometry, and the creation of the Matter-wave Atomic Gradiometer Interferometric Sensor (MAGIS-100) experiment. Having contributed to
Swapan_Chattopadhyay
Archaeological site in Iraq
have been excavated and six occupational layers determined. A magnetic gradiometer survey was also conducted which showed the presence of several large
Grai_Resh
Iron Age hillfort in Denbighshire, Wales
the field work. The work included magnetic susceptibility, fluxgate gradiometer, and resistivity surveys. The surveys identified a number of possible
Moel_y_Gaer,_Llanbedr
Neolithic henge in Somerset, England
measuring 43 metres (141 ft) wide, stands to the south west. A fluxgate gradiometer survey in July 2009 investigated standing stones in the garden of the
Stanton_Drew_stone_circles
Innovate UK funded projects to accelerate the development of QT gravity gradiometers. Metje has over 40 published journal papers, and 40 refereed conference
Nicole_Metje
Acoustic Doppler Current Profilers 3 x Current Profilers 1 x Wave Buoy 1 x Gradiometer 1 x Marine Magnetometer 1 x Gravimeter System 1 x Vibrocorer 3 x Grab
Italian_ship_USSP
Historic place in North Carolina, United States
additional, non-invasive archaeological surveys conducted by use of a gradiometer. These revealed 15 burials. There is a likelihood of up to 1000 burials
Kituwa
Danubian Neolithic archaeological site in the Czech Republic
FM-36 single fluxgate gradiometer, and the Magneto-Arch five-channel fluxgate gradiometer system with FMG-650B fluxgate gradiometer) surveying techniques
Bylany_(archaeological_site)
Apparatus for trapping and cooling neutral atoms
are used in a number of quantum technologies (i.e. cold atom gravity gradiometers) and have been deployed on several platforms (i.e. UAVs) and in several
Magneto-optical_trap
Type of intelligence gathering
gradient, which can be measured with a gravity gradiometer. Developing an operationally useful gravity gradiometer is a major technical challenge. One type
Geophysical_MASINT
Research institute of Mississippi State University
it appears that the site was not occupied during the Contact period A gradiometer survey of open areas around the mound was conducted at Butler in 2016
Cobb_Institute_of_Archaeology
Scottish castle
2022 Rose Geophysics carried out a geophysical survey consisting of gradiometer and resistance surveys at the site of Bedrule Castle and in the adjacent
Bedrule_Castle
Graded-index fiber Gradient Gradient enhanced NMR spectroscopy Gradient theorem Gradiometer Graetz number Graham's law Grain boundary diffusion coefficient Grand
Index_of_physics_articles_(G)
Concept in electromechanical engineering
"Superconduction accelerometers, gravitational-wave transducers, and gravity gradiometers", pp. 569–598, in Weinstock, Harold, SQUID Sensors: Fundamentals, Fabrication
Impedance_analogy
Grade I listed priory in North Somerset, United Kingdom
several coffins. According to the findings of later resistivity and gradiometer surveys there may also have been a formal Tudor garden and there may
Woodspring_Priory
using a spinning wheel with accelerometers also called as the gravity gradiometer. The instrument is positioned in different orientations to measure the
Geophysical_signal_analysis
Gunboat of the United States Navy
and a 1981 expedition led by Clive Cussler located a signal with a gradiometer near where she is believed to have sunk. By the end of the war in 1865
USS_Varuna_(1861)
New Zealand archaeologist
hdl:10523/499. Aitken, M.J. (1960). Magnetic prospecting: The proton gradiometer. Archaeometry 3: 38–40. Aitken, M.J.and Tite, M.S. 1962. A gradient magnetometer
Foss_Leach
Nature reserve in South Yorkshire, England
"Thorpe Marsh Gas Pipeline, South, East and North Yorkshire, Detailed Gradiometer Survey Report". Archaeology Data Service UK. Wessex Archaeology. Archived
Thorpe_Marsh_Nature_Reserve
Overview of the events of 2022 in science
23 February Researchers report the development of a quantum gravity-gradiometer – an atom interferometer quantum sensor – which could be used to map
January–March_2022_in_science
Unit of gravitational gradient
Christensen, Asbjorn N. (August 2013). "Performance of airborne gravity gradiometers". The Leading Edge. 32 (8): 908–922. Bibcode:2013LeaEd..32..908D. doi:10
Eotvos_(unit)
Use of geophysics tools in forensic science
simple total field magnetometers, through to fluxgate gradiometers and high-end alkali vapour gradiometers, depending upon accuracy (and cost) required. Surface
Forensic_geophysics
Development[relevant?] Researchers report the development of a quantum gradiometer – an atom interferometer quantum sensor – which could be used to map
2022_in_the_environment
Historic site in Ceredigion, Wales
100 AD. In November 2005, Trawscoed fort was explored using fluxgate gradiometer surveys by David Hopewell. The researchers surveyed a rectangle of 120
Trawscoed_fort
RM15-D resistance meter, and a Bartington Grad601 Fluxgate magnetic gradiometer. The Western facility's repository has a capacity for over 54,000 boxes
Sustainable_Archaeology
American geophysicist (1918–2012)
neutron, and sonic velocity logging. He attempted to design a gravity gradiometer for rock-density logging, but initial experiments showed that rotation
John_Call_Cook
GRADIOMETER
GRADIOMETER
GRADIOMETER
GRADIOMETER
Girl/Female
German, Hebrew
Lily
Girl/Female
Arabic, Muslim
Able; Powerful
Boy/Male
Afghan, Arabic
Light
Boy/Male
Arabic
Hard-working; Intelligence; Respected
Surname or Lastname
English
English : unexplained.
Girl/Female
Indian, Punjabi, Sikh
Earth
Male
French
Norman French form of Old High German Eberhard, EVERARD means "strong as a boar." This name replaced Anglo-Saxon Eoforheard after the Norman invasion and was used in England during the 12th and 13th centuries.
Boy/Male
Hindu
Black horse
Girl/Female
Gujarati, Hindu, Indian
Pure Water
Boy/Male
Muslim/Islamic
Warrior
GRADIOMETER
GRADIOMETER
GRADIOMETER
GRADIOMETER
GRADIOMETER