- published: 07 Feb 2014
- views: 3841
Dr. Steven Pawley describes the ways that LiDAR has helped some of the challenges previously encountered in data collection for the surficial geology mapping program. Much of the north has been mapped already, with more planned through 2015. LiDAR is able to provide a lot of detail that isn't always detected using other methods. Dr. Steven Pawley is Quaternary Geologist with the Alberta Geological Survey and the Alberta Energy Regulator.
Airborne LIDAR is an optical remote sensing tool that uses laser pulses to measure the precise distance to the ground. The airplane-mounted laser range-finding system, transmits and receives data, which are precisely located using a highly sensitive GPS receiver. Computer-generated images reveal hidden faults not seen through the vegetation. This example uses U.S. Geological Survey lidar images taken near Lake Tahoe and reveals a previously unknown fault cross cutting moraines. Animation by Jenda Johnson, Earth Sciences Animated Lidar Images from U.S. Geological Survey.
Engineering geologist, Pete Hobbs, explains how the British Geological Survey landslides team use Terrestrial Light Detection and Ranging (LiDAR). LiDAR is a land-based laser scanner which, combined with a highly accurate differential GPS and camera, enables us to produce 3D computer models of landslides in coastal areas.
Paula Redweik, Professor, University of Lisbon, Portugal. Report: Energy and geological studies based on photogrammetry and LiDAR data. 12th International Scientific and Technical Conference "From imagery to map: digital photogrammetric technologies". September 24--27, 2012, Algarve, Portugal
Meet David Sabatier, RTM (site engineer and deputy department head), Pyrénées-Atlantiques and the Hautes-Pyrénées counties. In order to understand the “sliding” phenomena affecting the Pyrénées mountains, MTSI worked with RTM to identify the structures on forest-covered slopes to detect the landslide and reconstruct the site’s geological history.
Mobile mapping pointcloud animation showing road markings and optional feature extraction. This animation was created using StreetMapperIV and collected in one pass, travelling at around 40kph
Provided by LidarForum.com - a video with plenty of moving images to help explain things more clearly. Visit: LidarForum.com
http://gallery.usgs.gov/videos/541 This video provides a visual example of how airborne LiDAR (Light D etection And Ranging) imagery penetrates dense forest cover to reveal an active fault line not detectable with conventional aerial photography. The video shows an aerial perspective of the range front Mt. Tallac fault, which is one of five active faults that traverse the base of the steep mountains west of Lake Tahoe, California. The USGS has recently published a report in the Bulletin of the Geological Society of America that details the seismic hazards of the Tahoe -Sierra frontal fault zone mapped with the new technology.
This is a fly through 3D digital model of a real forest (Bois noir forest Barcelonnette, France) from LiDAR derived forest inventory parameters and aerial ortho-image. The model was developed as part of my research on 'Forest inventory parameters and Carbon mapping from airborne LiDAR'. High density, small footprint discrete airborne LiDAR is capable of capturing rich structural information of ground features. Trees were identified in the point cloud with high accuracy of 96%. It was quite challenging to develop algorithms to extract tree parameters like height, canopy projection area (CPA) , canopy volume, canopy diameter, canopy base height, canopy density, canopy tilt and orientation, local tree density and gaps from LiDAR point cloud. Carbon/biomass was obtained from regression model...
Lightweight and robust, ROBIN +WINGS enables seamless integration between the ROBIN universal mapping system and most single pole aircraft utility mounts. Installation is quick, easy and secure. ROBIN +WINGS comes with a bespoke sensor management package specifically designed for airborne projects, including an extended capacity hard drive (x2 1TB) and full connectivity to plug into the aircraft ’s power supply, allowing for extended duration scanning.
LiDAR Flight using the CZMIL system.
Recent advances in both airborne and terrestrial LiDAR (Light Detection and Ranging) technologies allow imaging of Lake Tahoe landforms in a completely different light. In 2010, the Tahoe Regional Planning Agency and partners funded the first airborne LiDAR survey of the Tahoe basin,providing an amazing data set to explore landforms. This technology allows the user to strip away trees (or study the canopy) to reveal an amazing picture of unheralded clarity (sub-meter horizontal and 3.5 centimeter vertical resolution). Active faults, landslides and other landforms jump off the screen, enabling discoveries such as the landward extension of basin-forming faults (such as the West Tahoe and Incline Village faults). Paleo-landslides abound. Together with Sonar mapping in the lakes of the Tahoe B...
Animation of the Kriemhildenstuhl, an ancient roman quarry, located near Bad Dürkheim, Germany. Laserscan was perfomed by a Riegl VZ400 and point cloud post-processed by RiSCAN PRO V.1.73. Geology: Sandstone, Upper Rhine Graben, Lower Triassic, Lower Buntsandstein ©TU Darmstadt - Institut für Angewandte Geowissenschaften Contact: Dennis Laux, M.Sc., email@example.com
This is lesson 11f. In this lesson, you will learn about the new lidar products available through the 3D Elevation Program ---------- Find this video and thousands more at https://usgs.gov/gallery. Stay up-to-date on USGS topics and news on Twitter, Instagram, Facebook and more at https://usgs.gov/socialmedia. DYK? The USGS.gov site is completely mobile! Ditch the desktop and browse the latest earth science on your mobile device. Go to https://usgs.gov.