How the application of remote sensing techniques can support and be used in the evaluation of geomorphological hazard has currently a great interest and relevance within land planning and management strategies in coastal areas. In the framework of rocky coastal environment, where it is necessary to get a large amount of georeferenced data both at sea and inland, we believe that remote sensing techniques, allow the acquisition of the whole information in a single and integrated survey campaign. This is very effec-tive both in term of time and cost. Within this topical issue, we carried out a survey of rock coast and seabottom of Gallinara Island (Western Liguria, Italy) with the aim to produce a geomorphological map of the emerged and submerged coastal zone particularly addressed to the evaluation of the susceptibility of sea cliffs instability. It is a small island with an extent of 0,11 km2 and a maximum elevation of 87 m a.s.l. The integrated survey has been fulfilled using a Laser Scanner RIEGL mod. LMS-Z420i, a MultiBeam (MBES) R2Sonic 2024 and a GPS 5700 TRIMBLE in RTK (Real Time Kinematic) configuration. The coastal survey has been carried out by a boat properly equipped for the simultaneous acquisition of data on the Teledyne Reson PDS2000 platform. By the implementation with GIS tools, a continuos 3D model reconstruction has been performed both for emerged and submerged coastal zone together with geological and geomorphological data.
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Titolo: | Laser scanner and multibeam application addressed to geomorphological hazard evaluation of rocky coast | |
Autori: | ||
Data di pubblicazione: | 2018 | |
Abstract: | How the application of remote sensing techniques can support and be used in the evaluation of geomorphological hazard has currently a great interest and relevance within land planning and management strategies in coastal areas. In the framework of rocky coastal environment, where it is necessary to get a large amount of georeferenced data both at sea and inland, we believe that remote sensing techniques, allow the acquisition of the whole information in a single and integrated survey campaign. This is very effec-tive both in term of time and cost. Within this topical issue, we carried out a survey of rock coast and seabottom of Gallinara Island (Western Liguria, Italy) with the aim to produce a geomorphological map of the emerged and submerged coastal zone particularly addressed to the evaluation of the susceptibility of sea cliffs instability. It is a small island with an extent of 0,11 km2 and a maximum elevation of 87 m a.s.l. The integrated survey has been fulfilled using a Laser Scanner RIEGL mod. LMS-Z420i, a MultiBeam (MBES) R2Sonic 2024 and a GPS 5700 TRIMBLE in RTK (Real Time Kinematic) configuration. The coastal survey has been carried out by a boat properly equipped for the simultaneous acquisition of data on the Teledyne Reson PDS2000 platform. By the implementation with GIS tools, a continuos 3D model reconstruction has been performed both for emerged and submerged coastal zone together with geological and geomorphological data. | |
Handle: | http://hdl.handle.net/11567/910223 | |
Appare nelle tipologie: | 04.02 - Abstract in atti di convegno |