During the Irish National Seabed Survey (INSS) in 2003, a gas related pockmark field was discovered and extensively mapped in the Malin Shelf region (NW Ireland). In summer 2006, additional complementary data involving core sample analysis, multibeam and single-beam backscatter classification, and a marine controlled-source electromagnetic survey were obtained in specific locations.This multidi...

Recent years have seen widespread use of small-area maps based on census data enriched by relationships estimated from household surveys that predict variables, such as income, not covered by the census. The purpose is to obtain putatively precise estimates of poverty and inequality for small areas for which no or few observations are available in the survey. We argue that to usefully match sur...

Southwestern Amazonia is the frontier area between Brazil, Bolivia and Peru. In recent years this region has been faced with IIRSA (Integration Initiative of South American Infrastructure), the huge transnational program to promote integration by transportation and to a lesser degree, with energy, particularly hydroelectric. The center of this area consists of the Department of Madre de Dios, P...

The subsurface in areas affected by the Pleistocene glaciations often reveal very complex architectures and because of this, near-surface geology is generally difficult to map model high detail. A number geophysical methods focus on uppermost part are capable mapping details, but no single method has hitherto been able provide detail, data density resolution required Quaternary 3D. Driven deman...

This paper describes initial results for a laser-based aerial mapping system. Our approach applies a real-time laser scan matching algorithm to 2-D range data acquired by a remotely controlled helicopter. Results obtain for urban and natural terrain exhibit an unprecedented level of spatial detail in the resulting 3-D maps.

Abstract. Since the 1960s, a deep groundwater system in Wright Valley, Antarctica, has been hypothesized source of brines to hypersaline Don Juan Pond and Lake Vanda, both which are rich calcium chloride. Modeling studies do not support other possible mechanisms, such as evaporative processes, that could have led current suite ions present waterbodies. In 2011 2018, an airborne electromagnetic ...

The paper reports on the deep geophysical studies performed by Geological Survey of Russia (VSEGEI) under international project – Deep Processes and Metallogeny Northern, Central Eastern Asia. A model crustal structure is represented a set thickness maps 5400-km long geotransect across major tectonic areas Northeastern Eurasia. An area 50000000 km2 digitally mapped in uniform projection. show M...

Characterization of material changes with depth (profiles) in many landfill sites can be problematic for some conventional geophysical methods. Localized anomalies within the landfill can complicate mapping of underlying layers, and layered-model techniques are inappropriate for imaging laterally discontinuous landfills. Recently-developed geophysical hardware and software tools provide the opp...

according to this reality that iron bulks because of having ferromagnetic minerals, they have high magnetic intensity, in mining explorations most usual geophysical method  suggested to explore these resources is magnetic method. basically in order to process and interpretation of magnetic anomaly maps several methods be used of which most of these methods are based on try and error. one of usu...