Similar to the setup described in, three receivers Geomax GPS Zenith 25 model (by GeoMax AG, Switzerland) were placed on the crest of the dam ( Figure 1, panel b, red dots). Although relatively far away (≈ 33 km), it was used as a base station to allow a reduction in economic costs.
#Geomax geo office crack code#
Time Series Acquired by Devices Installed In SituĪ time series of GNSS displacements was measured using a permanent station (AGRI) operating 24 h a day at Agrigento (coordinates 4,131,320.31 N, 376,057.91 E RDN2008 UTM Zone 33 N, EPSG code 6708). Coarse-grained alluvial material is also used for the left side covering of the dam on the upstream side ( Figure 1b). with different slopes from the top to the bottom. A vertical cross section of the maximum height has a trapezoidal shape, characterised by a 9 m width on the top and ≈ 214 m at the base the valley side, covered with turf or vegetated soil, is constituted by a broken line interrupted by two quays of 2.5 m width and an elevation between 284 and 272 m a.s.l. Thus, the left bank is characterised by a constant slope of 0.09, while on the right side, characterised by tinier material covered by spread vegetation, the values of slope span between 0.16 and 0.18. Indeed, due to the unstableness of the left side, a plate has been made with coarse-grained alluvial material, standing on a stone plinth. The two banks are characterised by different materials and different slopes. The dam, characterised by a concavity-facing valley, is 792 m long at the top, where a paved road connects the left and right sides of the dam. The sealed coat stands on a reinforced concrete structure with a thickness of 80 cm fitted below the bulkhead in reinforced concrete. The dam (named Castello after the ruin of the castle “Castello della Pietra d’Amico” located near the left bank of the reservoir) has a semicircular shape ( Figure 1b) it is built of coarse-grained homogeneous alluvium from the valley, and limestone and is covered by a sealed coat of bituminous conglomerate. Despite limits related to wind conditions and surrounding morphology, SAR sensors allow also the detection of dam displacements by applying interferometric procedures. They concluded that the reservoir surface can be monitored accurately by discarding SAR images in which wind enhances surface roughness in relation to their intensity and direction. Indeed, the segmentation algorithm removed most of the pixels outside the reservoir even though some misclassified pixels were kept, but the subsequent clumping algorithm was not able to remove all pixels not classified as water within the water body. The authors highlighted that surface backscatter is influenced by local wind conditions reduced the classification performance. Some authors have quantified the water extent from COSMO-SkyMed (CSK) SAR images using an automatic classification procedure, including clumping and segmentation preprocessing.
![Geomax geo office crack Geomax geo office crack](https://www.geomatikhizmetler.com.tr/Content/Images/ggo3-software-2480x750-1.jpg)
Using the methods implemented for optical images, SAR images can also be employed to monitor the extent of the water surface. Over the last few years, it has been shown that optical satellite technologies are able to determine the variation of water level by quantifying the extent of the water surface.