Soil mapping with drones
In the Earth sciences sector, sensors for measuring properties of the Earth are rapidly becoming adapted for drone use now that new developments in technology have led to an increase in the size and p...
Geophysical surveying and seismics
Geophysical surveying and seismics try to infer the sub bottom shape of the earth using physical remote sensing techniques such as ground penetrating radars, sub bottom profilers and deep seismic systems. Using these sensors the geophysicist builds an image of the various layers of the bottom and studies where breaks and faults occur in the sub bottom structure.
An important usage of this data is in mining & energy for determining possible locations of oil and gas reservoirs but also in construction & engineering to determine the stability of the bottom before installing constructions. A special field of geophysical surveying is UXO surveying where unexploded conventional ordnance is searched for before a construction project is executed. The same techniques are also used in defense and security in for example mine clearance surveys. Special additional techniques used in UXO surveying are magnetometer and side scan sonar. Finally, geophysical surveying is often used to detect objects in the bottom in cultural heritage.
Digital Photogrammetric Workstations
For over a century, images taken from above-ground platforms have been major data sources for topographic mapping, creation of base maps and many other uses. For the past decade or more, data has been...
Surveying the Tonga volcano eruption aftermath
The Tonga Eruption Seabed Mapping Project (TESMaP) is a collaborative mission to discover the undersea impacts of the January 2022 eruption of the Hunga-Tonga Hunga-Ha’apai volcano. Using their coll...
Capturing the Arctic and Antarctic
Capturing and measuring the environment in the Arctic and Antarctic is a particularly challenging job. The area of interest is often covered by a thick blanket of snow and ice, while extreme temperatu...
Developing the Digital Sub-surface Model for Crossrail 2
A 3D geological model has helped to save valuable time and millions of pounds for the Crossrail 2 railway project in London, UK, by identifying geological hazards along the route and informing the tun...
Technical Advances Bring Digital Twin of Underground Infrastructure Closer
Mapping the underground is one of the major challenges in creating an infrastructure map at the municipal, regional, and national level, which is a key foundation for a national digital twin. Recent t...
Latest Advances in Ground-probing Radar Technology
In this article, Craig Simmonds presents massive advances in ground-probing radar and discusses the journey of the technology over the past quarter of a century. He particularly highlights the major c...
Multi-sensor Cave Detection in Bulgaria
Caves are important in a wide variety of fields, ranging from construction engineering to mineral exploration and archaeology. Despite the scientific importance of caves, geologists believe that only ...
Surveying in the Land of Fire and Ice
Geodesists and surveyors in Iceland face considerable challenges due to the deformation effects of earthquakes, volcanic eruptions and glaciers on the geodetic networks. This article provides insight ...