GeoEye-1 Scheduled Launch in 2007

GIM Interviews Matthew O’Connell, President and CEO, GeoEye
On January 12th 2006 came the announcement that Orbimage had acquired Space Imaging. The newly formed company, GeoEye, flies the high-resolution Ikonos, Orbview-3 satellites and Orbview-2. In 2007 it will launch the very high-resolution GeoEye-1. Our interviewee Matthew O’Connell has 25 years experience in Mergers and Acquisitions. Some years ago he left Wall Street to work full-time for Orbimage, exploring the exploitation opportunities of acquiring Space Imaging. After the acquisition the brand name changed into GeoEye: why? We are in the business of providing GeoInformation and Geo-Intelligence. In a way, GeoEye is short for that. And our three satellites can... (read more)
2006-03-27 12:00:00

Lidar’s Next Geospatial Frontier

The State of Lidar for UAS Applications
Over the past two decades, airborne Lidar has evolved from a developmental technology into a well-established mapping solution, and in the process has revolutionised the surveying and mapping industry. Today, unmanned aerial systems (UASs) represent the next geospatial frontier. With recent advancements in sensor technology, the adoption of Lidar for UASs is rapidly expanding, leading to new industry horizons. Read on for insights into the current state of UAS-based Lidar technology and emerging trends. (By Michael Starek and Jinha Jung, Texas A&M University-Corpus Christi, USA) Integration of traditional airborne Lidar mapping technology with UASs has been challenging due to the... (read more)
2015-04-07 03:55:32

China Leaps Ahead with Geospatial Research

GIM International Interviews Professor Dr ZHANG Jixian
Prof. Dr John van Genderen, himself a leading western expert on geospatial developments in China, interviews Professor Dr ZHANG Jixian, acting president of the Chinese Academy of Surveying and Mapping on the rapid evolution of geospatial ideas in China. Could you provide a brief overview of China’s earth observation missions, from their start up until now? China initiated a plan to develop a self-owned, proprietary (in terms of intellectual property rights) earth observation system after DFH-1, the first Chinese satellite, in 1970. Since then, many earth observation missions have been launched. As of today, we have developed five series of... (read more)
2005-03-24 12:00:00

GNSS Positioning

Status and Features
Nowadays, GNSS receivers have scores – and often hundreds – of channels, enabling them to track GPS, Glonass, Galileo and Compass signals simultaneously. The whole workflow from satellite tracking to calculating the coordinates of the position in a preferred reference system can be conducted automatically in real time. The price of GNSS receivers has dropped steadily since the first GPS receivers came onto the commercial market in 1982. In conjunction with the latest product survey results for GNSS receivers (available at www.geo‑matching.com), the author puts today’s GNSS status and features in perspective. (By Mathias Lemmens, senior editor, GIM International, The... (read more)
2012-12-18 01:53:20

GIS in Archaeology

The Human/Environment Interface of Maya Settlements
Throughout history the physical and cultural environment has influenced location and distribution of settlements. One important question in archaeological research is what are the causal relationships between environmental factors on the one side and location and distribution of settlements on the other? The authors demonstrate GIS to be a powerful analytical tool in finding answers to this question as it relates to Maya settlement patterns in Central America. Clues to the relationships between environmental factors and location and distribution of settlements are preserved in many existing maps. Combining these maps with remote sensing data and non-spatial information from a variety... (read more)
2005-12-29 12:00:00

Ortho-imagery: Geometric Accuracy Assessment

Towards Product Specification for Urban Areas
Anomalies such as building-lean result from the processing of traditional orthorectified imagery and this limits its use in urban areas. However, the arrival of digital sensors has meant fully orthorectified products coming onto the market. The authors test the positional accuracy of fully orthorectified imagery for urban areas and suggest a product specification. Orthophoto production used to be mostly limited to medium and small-scale applications, and even in the 1990s this market remained so underdeveloped that line-map restitution from stereo imagery was cheaper than producing large-scale orthophotos. Orthorectification transforms an image from a perspective projection to an orthogonal one; the... (read more)
2005-06-23 12:00:00

From Urban to Rural: Enabling Sustainable Urban Planning and Development Using Satellite Imagery

It is estimated that 55% of the world’s population lives in urban areas. This number is expected to increase to 68% by 2050. Studies have shown that urbanization, combined with the overall growth of the world’s population, could add another 2.5 billion people to urban areas. This growth presents a challenge to today’s urban planners – a challenge that can be partly solved by incorporating Very High Resolution (VHR) optical satellite imagery into their planning. This rapid rate of change challenges urban planners to ensure efficient city infrastructure management whilst minimizing the impact on the surrounding environment. Satellite imagery provides... (read more)
2020-06-02 10:38:34

How 3D Scanning Rebuilds Crime Scenes for Courtrooms

Capturing Crucial Evidence to Aid Justice
Crime scene investigators with larger US metropolitan police departments and state patrols are increasingly deploying 3D laser scanners to tell detailed, data-based stories that will withstand public and legal scrutiny while bringing justice to victims. 3D laser scanning technology is being used to accurately depict the relational aspect of each piece of evidence so investigators can rebuild and reconstruct crime scenes. This is a powerful investigation tool, especially as legal systems grow more comfortable with high-tech evidence in courtrooms.  In this digital age, the use of 3D laser scanners is expanding the role of geospatial technology in crime scene investigations.... (read more)
2020-05-13 03:35:40

Changed Perspectives in Land and Water Management

Situated in the delta of the rivers Meuse and Rhine, the Netherlands have a long tradition in land and water management. The fertile soils along the rivers and coast were quickly occupied for food production, the waterbodies were used for transportation of people and goods, and along this transportation network settlements emerged. However, the proximity to water bodies also meant the risk of flooding. Since the very first beginning, the main aim was to reduce the risk of flooding by embanking the rivers. Dams and locks were constructed as well to keep water levels high enough for – cross border... (read more)
2020-05-11 11:51:40

Spatial Information Management, a Key Discipline for Managing Spatial and Temporal Dynamics

FIG Commission 3
One of the most impressive examples of how phenomena evolve over time and space is the spread of the SARS-CoV-2 virus. Knowing in real-time where a local outbreak occurs, how outbreaks evolve over time, how many people are affected at any given location is of utmost importance to take appropriate measures. As with many other applications, well-established spatial information management, including an implemented system for digital information exchange can help to provide the required spatial information in near real time. Commission 3 at a glance Commission 3 of the International Federation of Surveyors FIG has the task of providing an... (read more)
2020-05-08 01:33:18
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