in march 2004, a fluxgate gradiometer survey was conducted over tepe ghabristan, covering approximately 6ha of ground. it identified further areas of the iron age cemetery with possible grave pits (areas b and c). in addition, an irrigation channel was discovered which could be contemporary to these iron age graves (area d). the anomalies in area e can be interpreted as buried structural remain...

Abstract Geophysical surveys were conducted in the Lahun area (Fayoum, Egypt). The is known to have been royal necropolis during period of Senusret II (1897–1878 BC), where he built his pyramid. Integrated magnetic and gravity measurements applied investigate five locations area. survey was implemented areas chambers, shafts, or cavity-like structures are expected, mudbrick expected. using a Ge...

Abstract Recent research at Soba focuses on the tangible and intangible heritage of medieval capital Alwa kingdom, whose remains cover approximately 275 ha. About 222 ha this area has been built up or transformed into agricultural land in past 30 years. An ethnographic survey was also carried out built-up to understand how residents engage with archaeological material remains. The undeveloped (...

Scott Hogg & Associates Ltd. have completed the development of a 3-axis, helicopter towed, aeromagnetic gradiometer. The towed bird is a complete airborne system with 4 cesium sensors, radar altimeter, pitch, roll and yaw measurement, a 3-axis magnetic fluxgate and a GPS positioning system. The system is designed to provide accurate geo-referenced magnetic gradients; G-east, G-north and Gvertic...

SHORT ABSTRACT: This paper describes the theoretical analysis of a method to detect and classify objects from magnetic maps. The method, originally designed to detect buried UXO by land survey with a magnetometer, is adapted here for underwater survey with a gradiometer. Evaluation is performed on simulated data in order to predict the performance of the adapted algorithm to this new situation....

To operate a magnetic sensor on board an Unmanned Underwater Vehicle (UUV), it is necessary to provide a means for compensating magnetic noise from a variety of sources. In previous applications involving passively towed platforms, the noise arises from the magnetic fields due to eddy currents and magnetic polarization changes occurring due to rotation of the platform in the earth’s magnetic fi...