Driving at night is a dangerous activity that necessitates maximum driver awareness for safe operation of a motor vehicle. A relatively cheap and effective way to increase a driver’s situational awareness is by proving the best view of the road and existing obstacles possible. Until the perfection and proliferation of night vision systems in cars this will be accomplished using headlights. Ther...

The effects of ground deformation pose a significant geo-hazard to the environment and infrastructure in Wuhan, the most populous city in Central China, in the eastern Jianghan Plain at the intersection of the Yangtze and Han rivers. Prior to this study, however, rates and patterns of region-wide ground deformation in Wuhan were little known. Here we employ multi-temporal SAR interferometry to ...

Abstract Caverns for large physics detectors, such as the one Large Hadron Collider experiments, sit nearly 100 m underground and measure several tens of meters in length, width height. The deformation cavern base slab over decades has a direct influence on relative alignment detectors with respect to accelerator. expected long-term movements are larger than fine adjustment accelerators. In thi...

in many countries, leveling networks are established for height determination which is one of the most important topics in geodesy. in these networks, the sum of the leveled height differences between a and b will not be equal to the difference in the orthometric heights ha and hb. the reason is that the leveling increment ?n, as we henceforth denote it, is different from the corresponding incr...

A subsidence research program began in 1985 to document the extent and magnitude of land subsidence in Sacramento Valley, California, an area of about 15 600 km, using Global Positioning System (GPS) surveying. A brief description of GPS surveying is followed by a summary of each of four surveys between 1985 and 1989. In addition to periodic conventional spirit levelling, an examination was mad...

A large percentage of the Costa Rican territory is covered with high evergreen forests. In order to compute a 1″ Bare-Earth Digital Terrain Model (DTM) for Rica CRDTM2020, stochastic Vegetation Bias (VB) was reduced from NASADEM, Elevation (DEM) based on Shuttle Radar Topography Mission (SRTM) data. Several global models such as: canopy heights Global Forest Canopy Height 2019 model, year 2000 ...

Levelling and focussing are well-documented processes, central to the emergence of new dialects, including New Zealand English as a distinct variety in last hundred fifty years. We draw on recent recordings from three areas Auckland examine extent which levelling continue be relevant today. Most work NZ dialect has concentrated phonology; we extend analysis syntax. consider structure relative c...