The goal of the project was to visualize the utmost smallest terrain discontinuities, e.g. tracks and erosion furrows, which some were not wholly preserved. Generally we were interested in objects that are clearly not visible in DTMs displayed in the form of shaded relief. Some of the ...
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False positive detections are often caused by (partly) circular signatures originating from paths on the forest floor, for example, at intersections of dirt tracks, by slightly puckered terrain and, in one case, by an oval former gun emplacement (Area 4). Furthermore, circular or near-circular...
VHR imagery freely available through Google Earth, ESRI, and Bing Maps is also often used as a basemap to visualize and interpret other geospatial data and derived products, along with OpenStreetMap topographic layers, and auxiliary Digital Elevation (DEM), Terrain (DTM) and/or Surface (DSM) ...
The probe height can be adjusted using a telescopic handle when encountering sites of variable terrain or vegetation cover. The geometry of a given survey area is user-defined in terms of grid and sample resolution. Rectangular grids comprised of individual lines or profiles are collected – if ...
Towards the west, the terrain has a gentle slope shaped on a marl deposit of 2–4 m thick, that overlays a sandstone layer. The climate is temperate continental with mean annual temperature of 8–9 °C and mean annual precipitation around 530–560 mm (Dumitrescu & Bîrsan, 2015...
However, not passable terrain and missing permissions to drive on the agricultural areas can handicap SQUID measurements. Alternatively, a fluxgate magnetic survey is more suitable here (Zielhofer et al., 2014). Combined approach: Geophysical survey with required ground-truth validation techniques In ...
First, the evidence and the stretching direction of the outer walls of the pass were identified from the temporal-averaged products of PALSAR and the terrain from TanDEM Co-registered Single-Look Data. Then, the spatial layout of archaeological monuments (previously documented as well as recently ...
Parsa, M., Maghsoudi, A., Yousefi, M., Sadeghi, M., 2017b. Multifractal analysis of stream sediment geochemical data: Implications for hydrothermal nickel prospection in an arid terrain, eastern Iran. Journal of Geochemical Exploration DOI: 10.1016/j.gexplo.2016.11.013....
Final results are vectorized interpretation maps, digital terrain models, vectorized isolines and digitally rectified photographs with an accuracy of down to 10 cm. The combination of both sources of prospection data allows new insights into the structure and archaeological relevance of a site. The ...