Navigating the Future of the Geospatial and Geomatics Sectors

GIM International Interviews Dorota Grejner-Brzezinska
Dr Dorota Grejner-Brzezinska is the incoming president of the Institute of Navigation (ION). She also serves as president of the International Association of Geodesy (IAG) Commission 4, Positioning and Applications. GIM International held an in-depth conversation with Grejner-Brzezinska on the role of the ION, the latest developments and trends in GNSS survey solutions, and the future of GNSS. The Institute of Navigation (ION) serves a worldwide community including those interested in air, space, marine, land navigation, and position determination. How has the Institute evolved? The Institute of Navigation was founded in 1945 by a group of practising air navigators, originating... (read more)
2014-12-23 12:03:27

Growing Geospatial Capabilities All over the World

Interview with Peter Hedlund, Ordnance Survey International
Ordnance Survey International (OSI) is a subsidiary of Ordnance Survey (OS), responsible for sharing the British mapping agency’s expertise and tradecraft with countries across the globe. In 2016, the international branch appointed Peter Hedlund as its new managing director. Back then, Hedlund stated that location data often reveals the simplest answers to many of our world’s most complex questions. In this interview, he zooms in on the geospatial services his organisation provides all over the world. What attracted you to join OS? And how does your past experience help you in this position? Ordnance Survey (OS) is well-known and respected... (read more)
2017-12-12 10:44:50

Digital Norway

Co-operating to Up Geo-information Use
Digital Norway is a collaboration that is playing an important role in implementation of the national spatial data infrastructure in Norway. At the root of the infrastructure is a national geoPortal enabling access to geoinformation data and services owned by producers at national, regional and local level. A sophisticated internet application has been developed to facilitate regional access for a broad range of new GIS users. Technological development is today moving rapidly from desktop GIS towards distributed GIS, leading to increased use and new users and allowing realisation of the full potential for geo-information. Recognising these areas of potential growth... (read more)
2007-01-01 12:00:00

An Operational High-resolution Forest Inventory

Combining State-of-the-art Remote Sensing with Computer Analytics
Forestry operations currently rely heavily on forest inventories that employ field plot data as a basis for estimating forest attributes. This labour-intensive approach provides limited information and has become a costly bottleneck in completing operations. Remote sensing can be used to obtain more accurate and comprehensive forest inventories with less effort. This article discusses high-resolution forest inventory services (HRISs) which combine state-of-the-art remote sensing technologies and computer analytics to produce operational forest inventories that help to improve the efficiency of various forest management activities. As a global economic activity, forest wood production is highly variable, ranging from single species plantations... (read more)
2017-10-30 11:34:43

Earth Observation in Conflict Mitigation

Co-ordinated Mission
The conflicts in Darfur and Chad have led to excessive human-rights violations, including murder, rape and enforced displacement. Millions of civilians have had to leave their homes and hundreds of thousands have died as a result of attacks. The worst years of fighting were 2003 and 2004, but violence is on the increase again. International peacekeeping has not proved effective and access to humanitarian agencies is limited. A powerful tool in support of planning processes for international missions is earth observation (EO) via up-to-date satellite imagery.<P> In early summer 2008, the external relations directorate-general of the European Commission (DG RELEX)... (read more)
2009-06-30 12:00:00

2D and 3D Enrichment of Panoramas

Visualisation of Topographical Features Improves Functionality
The use of panoramic images has become widespread in many governmental agencies and companies, especially in the last couple of years. It is possible to integrate 2D spatial features (e.g. building outlines, parcels, utilities etc.) with panoramic images to enable the proper visualisation of topographical features in a 3D environment. Verbree et al. (2004) have shown the advantages of augmenting underground conduit pipes and cables into panoramic images, thus allowing better visualisation of otherwise invisible features. The geometric augmentation of 2D features into panoramic images enables users to identify, query or analyse any geographically related information in a 3D environment.... (read more)
2012-02-27 04:37:18

Underground 3D Scanning in Bhutan

Cavity Mapping above Collapsed Tunnel
A laser scanner was deployed when a tunnel roof collapsed at a hydroelectric dam construction site in Bhutan. Surveying cavities in underground excavation projects can be difficult and dangerous. The collapse of a roof inside the main access tunnel at a hydroelectric dam construction site in Bhutan resulted in loss of life and a significant delay in progress. Project participants could not move forward with the tunnel work until they could ascertain the size and condition of the cavity that remained above the caved-in debris blocking the chamber. This article describes how an Indian technology application company deployed a laser scanner... (read more)
2018-04-26 10:12:47

Environmental Sensitivity and Suitability

Country-level Planning for Rwanda
Environmental analysis is a process used to improve decision-making and ensure proposed development options are ecologically, socially and economically sound. Rwanda is one developing country with tremendous natural and human resources which need to be systematically and optimally utilised for all-embracing growth of he country. The author articulates the various factors to be considered in impact assessment for urban planning and development, ecological conservation and identification of risk-prone areas. Remote sensing and GIS are geo-spatial technologies with important applications in many areas, including natural resources, wildlife management and conservation. This study takes multi-sensor and multi-temporal remotely-sensed data to obtain updated... (read more)
2010-04-08 02:51:02

Classifying Buildings from Point Clouds and Images

Comparing Airborne Lidar and Dense Image Matching for Building Classification
The reconstruction of building outlines provides useful input for land information systems. In the city of Kalochori in northern Greece, a mixed commercial and residential area of 33 hectares was selected as a test area to evaluate the classification of buildings. Two data sources were available: airborne Lidar and aerial photographs. These data sources were processed to create two separate point clouds. Comparison of the results shows that both data sources can be used for building classification, although more development is needed to improve the robustness of dense image matching. (By Evangelos Maltezos and Charalabos Ioannidis, Greece) An urban area... (read more)
2016-08-01 09:51:30

Airborne Lidar Bathymetry

Mapping Shallow Rivers Under Low-flow Conditions
Although operational for more than twenty years, Airborne Lidar Bathymetry (ALB) has rarely been used in riverine areas. The US Bureau of Reclamation adopted it to study how flow change in the Yakima Rivera affected fish habitat. The authors show that ALB offers accuracy and precision at least as good, if not better than that achieved in typical survey by boat with sonar and GPS. The United States Bureau of Reclamation needed to create an accurate hydraulic model of the Yakima River in Washington State to study how changes in river flow would effect downstream fish habitat. For many years... (read more)
2006-10-23 12:00:00
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