Sentinel-2A in Orbit: An Overview of the Features of the European Sentinel Family

The launch of Sentinel-2A in June 2015 signalled the start of the era of the Sentinel-2 twin constellation. The satellite has been constructed by Airbus Defence and Space for the European Space Agency (ESA). The Sentinels are a new family of missions in progress and a major asset within the European Copernicus programme, which is dedicated to providing a comprehensive picture of the ‘health’ of the Earth. To mark the occasion of the launch, the author provides an overview of the mission, the features of the sensors on board and applications of the images. Although rarely used in common speech,... (read more)
2016-05-02 09:36:51

Geomares: Quality is Our Motto

GIM International Interviews Durk Haarsma
Geomares Publishing is the new media company behind GIM International, having in October taken over ownership from previous GIM publisher of almost ten years Reed Business-Geo. Geomares publishing director Durk Haarsma has in house strong brands, dynamic publishing concepts for the future and a dedicated team that will keep working to deliver quality in every possible way. Could you outline your reasons for buying GIM International and establishing Geomares Publishing? I have been in post as publisher of GIM International now for five years and have a strong belief in GIM International as flagship brand. Together with our other publication,... (read more)
2009-12-29 11:32:43

TIGER Tale

Uncertainty of US Core Geo-demographic Data
Core geo-demographic data in a GIS-compatible format derived from decennial US censuses has greatly benefited marketers, social scientists and governments. It has also inspired development of similar datasets in other countries. However, the US Census Bureau’s Topologically Integrated Geographic Encoding and Referencing (TIGER) data has many limitations, including missing or erroneous data, inaccurate or deliberately misleading responses, misinterpretation by casual users, and reinterpretation by various groups bent on teasing out information. There is also potential for criminal misuse of derived information. One of the biggest sources of uncertainty concerns undercounting of various groups, many but not all socially marginalised. So-called... (read more)
2007-01-02 09:23:23

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

Crowdsourcing: a Wake-up Call for Surveyors

GIM International Interviews Wafula Nabutola
Land forms the basis of food and shelter, and is one of the four production factors in the economy. Surveyors play a key role in designing and implementing spatial plans. In many cities in Africa, improper spatial planning results in situations of informality and completely uncontrolled development. As preparations are well underway for the FIG Working Week in Abuja, Nigeria, GIM International interviews Wafula Nabutola from Kenya, chair of the FIG Commission on Spatial Planning and Development. He provides an overview of the role of land administration in relation to spatial planning, and insights into the potential contribution the surveying... (read more)
2013-01-29 06:30:07

The Tough Road from 2D Maps to 3D City Models

GIM International Interviews Dr Filip Biljecki
The demand for mapping intensively used parts of the Earth, including roads and cities, is steadily growing. This is because today’s rate of urbanisation requires detailed and up-to-date geodata in its full three dimensions. Such datasets help city managers to prevent a decline in liveability, to limit water, air and noise pollution, and to improve fair taxation and rapid emergency response. Crucial is the abstraction of the 3D real world, a concept known as level of detail (LoD). Since 2012 Dr Filip Biljecki has been investigating how to improve the level of detail (LoD) in 3D city models. For his... (read more)
2017-07-06 09:45:13

New Elevation for North America’s Highest Peak

Climbing to the Peak of Precision
Surveyors, mappers, geodesists and other scientists, as well as climbers and mountaineers from around the world, have long held a curiosity to know the official elevation of Denali, the continent's highest peak. Since the last survey of Denali’s apex in the 1950s, GPS/GNSS equipment technology has significantly improved. In June 2015, the U.S. Geological Survey (USGS) partnered with NOAA’s National Geodetic Survey (NGS) and the University of Alaska Fairbanks (UAF) to re-survey Denali’s peak using the most advanced precise point positioning technology. The survey party was led by CompassData, a subcontractor for Dewberry, under contract to the USGS and consisted of... (read more)
2016-05-20 01:36:24

Light Mobile Collection Tools for Land Administration

Proof of Concept from Colombia
Need for administration of property: estimated 75% of the relations between people and land not documented. There is an urgent need for the administration of property and land use rights worldwide as the basis for social and economic growth. Notwithstanding the enormous investments by governments and international organisations in the development of such systems over the past decades, it is still estimated that, from a global perspective, 75% of the relations between people and their land are not documented. So which methods and techniques can be used to develop land administration systems for all, and within our generation? Light mobile collection tools may offer a solution, as presented in this proof of concept from Colombia. By... (read more)
2015-11-16 10:44:07

MAPS

From mid-March until the beginning of June 2008 one of the galleries of the Walters Art Museum in Baltimore, US, was filled with over a hundred maps, globes and artefacts spanning all centuries and covering all cultures. Exhibits ranged from a 3,500-year-old clay map from Mesopotamia to maps of imaginary landscapes created by writers like Tolkien and Faulkner.?<P> The intention of the exhibition was to stretch the public imagination as to the possibilities of mapping. The exhibition also wanted to make the point that maps can be powerful political tools. National Boundaries When back in 1766 the British colon­ists of... (read more)
2008-07-09 12:00:00

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
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