Introduction: Surface gravity surveying is a well developed terrestrial geophysical technique, used to detect subsurface density variations, which in turn can reveal subsurface geologic features. Here we perform a feasibility study to determine what major science questions can be answered by a rover-mounted, highly compact gravimeter and gravity gradiometer being designed by Gedex Inc.; a Toron...

We present a feasibility study for interpretation of gravity gradient surveys in a single borehole using both an analytic and inverse-based approach. We analytically solve for distance and direction angles to a point source using the components of the gravity gradient tensor from a set of observations in a single borehole. We then generalize this approach to include the response due to a prisma...

Ancient Šuruppak, today Fara, was one of the major Sumerian cities in Mesopotamia. It situated along ancient watercourses Euphrates River. Findings date it back to Jemdet Nasr period around 3000 bc with a continuous occupation until end Ur III 2000 bc. Fara first explored and excavated by Deutsche Orient-Gesellschaft years 1902 1903 under direction Walter Andrae. Multiple excavation trenches le...

This paper proposes a novel signal-detection-theory-based definition for the resolution of Neuromagnetic imaging systems, and develops a Monte Carlo computer simulation method to compute the resolution. Using the resolution as a performance measure, the performance of various types of sensor hardware is assessed. The assessments include performance improvements due to the increase in the number...

The aim of ESA's satellite mission GOCE is to determine the Earth's gravity field with high accuracy and resolution. To achieve this aim, GOCE carries a gravitational gradiometer that needs calibration. Existing global gravity fieldmodels in combinationwith GOCE star sensor data may be used to synthesize reference differential accelerations with which the common and differential accelerations, ...

An accelerometer, based on a microwave sapphire resonator, is under development for application in a compact gravity gradiometer. This gravity gradiometer potentially can be used in space gradiometry, precision navigation, and geodesy. The principle of operation of the accelerometer is based on measurements of classical springproof-mass displacements, which are converted to phase shifts in the ...

Abstract. Fluxgate magnetometers provide sensitive and stable measurements of the static low-frequency vector magnetic field. Fluxgates form a field measurement by periodically saturating ferromagnetic core intrinsic noise this material can determine floor instrument. We present results an empirical experiment to understand physical parameters that influence fluxgate cores. compare two permallo...