- published: 07 Feb 2014
- views: 3557
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.
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.
This NEON Science video overviews what lidar or light detection and ranging is, how it works and what types of information it can provide. The video was produced by the National Ecological Observatory Network - a non profit project devoted to open science and open data. Suggested citation for this video: National Ecological Observatory Network. November 6, 2014. How Does LiDAR Remote Sensing Work? Light Detection and Ranging [Video file]. Courtesy: Battelle. Retrieved from https://youtu.be/EYbhNSUnIdU.
This tutorial walks you through the process of downloading free LiDAR data online using the USGS Earth Explorer. Other websites offering free LiDAR Data: Open topography: http://www.opentopography.org/ National LiDAR Dataset (U.S.): https://en.wikipedia.org/wiki/National_Lidar_Dataset_(United_States) NOAA Digital Coast (specifically for coastal areas): https://www.coast.noaa.gov/dataviewer/#/ National Ecological Observatory Network (NEON): http://www.neonscience.org/ Feel free to share other sources that you have found useful in the comment section below.
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
"Lidar" is a remote sensing technology that measures distance by illuminating a target with a laser and analyzing the reflected light. Although thought by some to be an acronym of Light Detection And Ranging, the term lidar was actually created as a portmanteau of "light" and "radar". Lidar is popularly used as a technology to make high-resolution maps, with applications in geomatics, archaeology, geography, geology, geomorphology, seismology, forestry, remote sensing, atmospheric physics, airborne laser swath mapping , laser altimetry, and contour mapping. Lidar originated in the early 1960s, shortly after the invention of the laser, and combined laser-focused imaging with radar's ability to calculate distances by measuring the time for a signal to return. Its first applications c...
A sophisticated technique using lasers from an aircraft to map the terrain below has been helped by Higher Level Stewardship funding. Lidar (Light Detection And Ranging), is a technique that is able to peel back the vegetation in the computer to reveal previously unknown landforms below. It has both archaeological and environmental uses that improve our knowledge of the New Forest, taking the Forest's past history into the future.
Geiger-mode LiDAR technology offers the most accurate elevation data available. The sensor allows for collections on a larger scale than has been possible up until now, while also collecting data up to 10 times faster and at 10 times the resolution as top-of-the-line, existing linear LiDAR sensors. Find out more at: https://www.harris.com/solution/geiger-mode-lidar
A short animation of Bernhardshammer, a former carbonatic quarry, located south-east of Stolberg, Germany. Laserscan was perfomed by an Optech Ilris 3D Scanner in cooperation with the Department of Engineering Geology and Hydrogeology of the RWTH Aachen. Point cloud post-processed by RiSCAN PRO V.1.72 and Innovmetric PolyWorks.
This animation shows an air photo from 2007 for initial comparison, and then displays our 2010 LiDAR-produced Digital Elevation Model (DEM). The volume of landscape change between the 2010 and 2009 DEMs is shown by a colour ramp, where deep blues and purples show surface lowering and reds and yellows show surface rise. More information at: http://www.bgs.ac.uk/research/glacierMonitoring/LandscapeandLiDARScanning.html
Seeing Shape: An Introduction to LiDAR Mapping Technology Presenter: Ralph Haugerud, Geologist, USGS Affiliate Assistant Professor, Department of Earth and Space Sciences, UW College of the Environment The 4th Annual University of Washington GIS Day was held on Wednesday, November 19th, 2014, in the UW Libraries Research Commons. GIS Day highlights and celebrates the transformational role of Geographic Information Systems (GIS) and Remote Sensing Technologies. This session was one of two specialized talks on LiDAR mapping technology. For more information on LiDAR, visit http://oceanservice.noaa.gov/facts/lidar.html. University of Washington Libraries – http://www.lib.washington.edu/ Research Commons - http://commons.lib.washington.edu/ UW Department of Earth and Space Sciences - http:/...
4D Modelling of Glacier Evolution: high resolution monitoring at Virkisjökull, Iceland. For more information see: http://www.bgs.ac.uk/research/highlights/modellingGlacier2010.html A Reigl LPMi800 LiDAR scanner was used in September 2009, and again in September 2010 to generate a centimetre-accurate DEMs covering 2km x 1km of the glacier margin and foreland. The point clouds of over 80 million scanned points are precisely positioned using dGPS and are given photorealistic colour values via a digital SLR camera incorporated into the scanner. The scans are repeated annually, allowing sequential DEM surfaces to be superimposed. Subtraction of later scans from the 2009 scan will provide quantitative data on the evolution of the glacier foreland, in terms of the melting out of buried...