EEZ Malta Surveyed

TerraImaging, Germany/The Netherlands, has successfully finalised high-precision airborne data capture of the Maltese archipelago, from ocean floor to church spires, and work is well underway to complete one of the first fully integrated Topograhic Lidar, Bathymetric Lidar and side-scan sonar datasets of a nation’s Economic Exclusion Zone around the island up to one nautical mile. This is part of a project to develop a national infrastructure and capacity for environmental monitoring. The project, carried out by TerraImaging and her partners, will contribute to a baseline survey of the Maltese Islands and is to complement multibeam data and topographical Lidar and... (read more)
2012-07-18 10:13:55

Extraterrestrial Hydrography

While there is still lots of ocean mapping work to do on Earth, oceans situated elsewhere in our solar system hold plenty of mysteries too, writes Wim van Wegen in this column. The oceans on our planet remain largely an unexplored world, far from divulging many of their secrets. Seabed 2030, which is a joint project between the Nippon Foundation of Japan and the General Bathymetric Chart of the Oceans (GEBCO), aims to collect all available bathymetric data in order to produce the definitive map of the world’s ocean floor by 2030. As of today (and despite many years of... (read more)
2020-10-08 08:47:41

Immersive Geoscience to Be Key Topic at Virtual Geoscience Conference 2018

The Virtual Geoscience Conference (VGC) series is coming to Kingston, Canada, from 23-24 August 2018. The focus of the conference series is on innovative research and development in close-range remote sensing and computer visualisation applied to the geosciences. The series is all about innovative research and applications of geomatics, computer vision, graphics, gaming and virtual and augmented reality to a wide range of geoscience subfields, including geological mapping, geomorphology, geohazards, glaciology, volcanology, tunnelling and mining. This year’s meeting focus is on the theme of immersive geoscience and novel developments in virtual and augmented reality. The broad focus of the conference series allows geoscientists... (read more)
2018-02-22 09:55:39

Using the Apache Unmanned Survey Vessel

Techniques in Bathymetric Survey
This paper explores the various features of the Apache USV series for efficient seafloor-level mapping. The CHCNAV hydrographic survey software is used for data recording and analysis. It provides results in the form of 3D models of the ground, contours and depth. (This story is brought to you by CHCNAV) Bathymetry is the study and mapping of the seabed or lake bed. It consists of obtaining measurements of the depth of the ocean or lakes and is equivalent to the mapping of the Earth’s topography. In general, only limited information is known about the seabed and lake beds. Existing maps... (read more)
2020-08-05 10:38:58

Multiplatform Lidar Use in Digital City Projects

CHCNAV AlphaUni 900 Application Case
Following its emergence more than a decade ago, digital twin technology has developed to become a complex and comprehensive technical system that supports the construction of new smart cities. It is also an advanced model for the continuous innovation of intelligent urban development and a future form of modernization of the combined ‘virtual and real’ world. (This article is brought to you by CHCNAV) The establishment of the digital twin city brings to the forefront high-level topographic tools that are able to deliver comprehensive, multi-dimensional, large-scale and high-resolution datasets. Traditional methods of collecting and representing 2D spatial data, such as... (read more)
2021-01-14 09:10:36

'Great Stories Start Here'

Point Clouds Everywhere at HxGN Live 2014
This year’s HxGN Live, Hexagon Metrology’s annual user conference, was once again held in Las Vegas, USA, from 2-6 June. Its maxim: ‘Great Stories Start Here’. From a geomatics point of view the event can be typified as ‘point clouds everywhere’. This report focuses on their creation by airborne Lidar, mobile mapping, trolleys and handhelds. Although Leica Geosystems, part of Hexagon, has been a prominent manufacturer of airborne Lidar systems for decades, in October 2013 it acquired Swedish Airborne Hydrograph AB (AHAB) – a small firm which has been specialised in bathymetric airborne Lidar for over 20 years. Today, AHAB... (read more)
2014-09-01 11:59:10

Point Clouds (2)

Survey of Processing Software
Collecting and processing point clouds has been trending topic in the geospatial sector over the past few years. This article focuses on point cloud processing software aimed at creating DEMs or DSMs and products derived from these. The first article of this diptych, originally published in the June 2014 issue of GIM International, focused on functionalities. This survey starts with the software of Terrasolid, which is based in Helsinki, Finland. It will then focus on three systems listed on the website, subsequently continuing with software which operates independently from the particular sensors, to then arrive at proprietary systems. It... (read more)
2014-07-25 10:02:27

7 Questions about Hydrography and Its Relevance for Geomatics

The Perfect Combination of Science and Technology Applied to the Sea
According to NOAA (The U.S. National Oceanic and Atmospheric Administration), hydrography is the science that measures and describes the physical features of the navigable portion of the Earth's surface and adjoining coastal areas. It can be seen as an application area within the geospatial engineering discipline. We asked 7 questions to Laurent Kerléguer, the new director general of the French Hydrographic Office (Shom), to learn more about the world of hydrography. Chief weapons engineer Laurent Kerléguer was appointed director-general of Shom, the French hydrographic office, in July 2019. In this interview, GIM International asks him about the latest developments regarding the... (read more)
2019-11-26 03:24:07

Multi-sensor Coastal Mapping

Integrating Active and Passive Sensors Provides Major Gains
Fugro has tested a multi-sensor approach to balance growing data needs with limited agency budgets. Coastal mapping programmes are quickly becoming a priority for government agencies across the globe. The desire to better define and understand the land/sea interface is based on several interrelated factors, including sea-level rise and its impacts on coastal populations, the growth of and reliance on a blue economy, and the need to maintain critical nearshore habitats in the midst of a changing landscape.  (By José Martínez Díaz and Don Ventura, Fugro USA) In support of its hydrographic charting programme, the US National Oceanic and Atmospheric Agency... (read more)
2016-12-13 09:47:02

Smart Surveyors: Developments and Trends from the FIG Working Week 2020

Some of the challenges demanding innovative surveying approaches and technologies are rapid urban growth, smart energy, cleaner mobility, and ‘land rights for all’. Sensing technologies, spatial data processing methods, and related approaches are already available. However, the question is how to use and improve them to become future proof, smart surveyors? Only ten years left to achieve the SDGs for a sustainable future. How can smart surveying contribute? To answer these questions, the papers of the FIG proceedings were analysed by the author-team.In this short article, we present the main trends distilled and the papers we refer to, represent these... (read more)
2020-05-08 02:03:33
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