Using unmanned surface vehicles for hydrographic surveying

Hydrographic survey is essential and widely welcomed in the world for economic, security and societal purposes. The question remains how to survey in a safer and faster way. One way to do this is by using unmanned surface vehicle (USV), a type of platform that can carry various kinds of sensors for hydrographic survey. This […]

Mapping natural woodland burial grounds

To locate individual burial plots with confidence, even when they are covered by trees and plants, as well as plan future burial plot use and manage the site, surveyors were tasked to create an accurate, electronic map of a burial park. Since the 1990s, the concept of woodland burial parks has become increasingly popular. As […]

How lidar is helping clean up the Great Pacific Garbage Patch

The Pacific Ocean is a junk yard for the waste that humans dump from their coastal cities or lose overboard from ships. Its currents push the trash into the middle of the ocean where it remains for years, concentrated into a region called the Great Pacific Garbage Patch. Lidar is playing an important role in […]

Manned lidar versus drone lidar

Manned lidar has been widely used for roughly twenty years and drone lidar recently has become a new tool in the geo-toolbox. Which should you use? When is it a good time to use drone lidar, or should you continue to use manned lidar? Is drone lidar better? When is drone lidar better? Is drone […]

Guidelines for coastal lidar

This article provides guidance to technical and non-technical coastal practitioners regarding the required precision of airborne lidar data for the typical coastal applications, output formats and value-added products. It also touches on issues of flight campaign planning and a national coastal lidar inventory. Highly accurate and detailed topographic information has been identified as being crucial […]

Smart infrastructure: mapping underground utilities

Beneath roads lie complex networks of cables and pipes, but often the owners of these systems don’t know their precise nature or location. Emerging digital technologies could enable the creation of real-time 3D maps of buried utilities – reducing inefficiencies, costs and risks. In recent years, sectors such as communications and the media have been […]

Mapping rockfall sources and deposit areas

Rockfalls are one of the major threats to the viability and liveability in the Alps. To identify areas that are at high risk due to rockfalls, it is important to study historical events and develop spatial models that provide accurate maps of rockfall deposit areas. To study rockfalls it is necessary to validate the results […]

Addressing shortcomings of land tenure reform in customary land rights

Despite over two decades of intervention, land reform in South Africa is failing [1; 2]. The failure of land reform is attributed to an inappropriate logic of land reform [2], which we link to differences in how land is understood, giving rise to application of inappropriate theory for the context [3, 4]. For land reform […]