Mapping from Satellite Imagery

The emergence of new, low-cost, internet-based mapping tools like Google Earth, Google Maps, and NASA World Wind that make thousands of satellite images available to a wide audience has greatly influenced perception and awareness. This goes for both the general public and the scientific community, who now see the enormous potential of mapping from satellite imagery. Such tools highlight the crucial role of remote sensing in providing fast, up-to-date cartographic information for informed decision making, particularly for rapid mapping of pre- and post-disaster events, emergency planning, geomarketing, or even simpler activities like planning a holiday trip. The ICA Commission on... (read more)
2007-02-23 12:00:00

Hazard Mapping and GIS

Simulating Avalanche, Debris Flow and Rock-fall
The extreme avalanche winters of 1951 and 1999 in Switzerland clearly demonstrated the need for hazard mapping in mountainous areas. Hazard mapping helps in devising mitigation measures such as the construction of natural and artificial protection against avalanches, debris flow and rock-fall. The authors developed a new system called RAMMS (Rapid Mass Movements) comprising avalanche, debris-flow and rock-fall, protect and visualisation modules linked to a GIS.<P> Nets provide one example of an artificial protection against rock-fall. Natural protection is afforded by stands of forest on mountain slopes. Knowing how trees dissipate energy, by for example either the trunk or root... (read more)
2007-10-16 12:00:00

Mapping the World

GIM International Interviews Steve Coast
Steve Coast founded OpenStreetMap in 2004. It's a free, editable map of the world which has been made by people across the globe and allows users to view, edit and use geographical data in a collaborative way from anywhere on the planet. GIM International spoke to him about the project and what lies ahead.   What motivated you to start an ‘open' street map? Back in 2004, Wikipedia had become an extremely successful project and I thought it would be a good idea to apply the same principles to the creation of maps of local areas around the globe. By... (read more)
2012-02-27 03:59:18

Rwanda Pioneers UAV Mapping

After Rwanda made waves in the news early last year for allegedly being the first country to approve drone-based deliveries, people started paying attention. The country, with its rolling hills and one of the fastest-growing economies in Central Africa, has already established regulations regarding drones and become a vanguard of sorts for the region. To support this development, in 2016 the University of Twente organised a course in Rwanda on the latest drone mapping techniques. There is a huge market in Africa at the moment, according to Francesco Nex, assistant professor at the ITC Faculty, University of Twente. The country is growing very fast, with... (read more)
2017-02-03 09:11:54

Mapping Flood Vulnerability

Deriving Risk Indicators from Open Data
Floods have a high impact in densely populated areas, especially when strategic infrastructure is affected. There are various human and territorial factors that influence an area’s vulnerability to flooding. Intensive agricultural activity and large urbanised areas are examples of such human factors, while the soil’s ability to absorb water is a major territorial factor. A quantification of flood vulnerability can be created by combining numerical indicators for the various factors into a single index number that is easy to interpret for decision-makers. GIS tools can easily be applied to calculate these indicators from various open spatial data sources, offering a... (read more)
2015-04-10 12:20:45

Web Mapping APIs

ESRI announces that its Web mapping APIs are available at no cost to users who are building applications for use in internal and noncommercial environments. ArcGIS Web mapping APIs have always been free for licensed ArcGIS Server users. Now government agencies, nongovernmental organisations (NGOs), and educational institutions can take full advantage of these mapping applications built on top of ArcGIS Server without additional costs or licensing.     Private businesses can also deploy these API-based applications internally for free.   ArcGIS Web mapping APIs are part of ESRI's Web infrastructure. Developers will have access to ArcGIS Online map services for... (read more)
2009-07-30 01:26:18

Mapping an Oil Pipeline

DEMs and Ortho-imagery for Colombia from Dual-band Side-looking Radar
Adverse weather and terrain conditions meant the Cano-Limon oil pipeline in Colombia had never been accurately mapped until orthorectified images and digital elevation models covering an area of 94,000km2 were created using airborne dual-band interferometric IFSAR simultaneously acquired X and P-band data. The authors report on main aspects of the project. The Cano-Limon oil pipeline extends nearly 780km from the Cano-Limon oilfield in Colombia’s Arauca region along the north-western border with Venezuela to a port in Covenas. When fully operational the pipeline can carry up to 20% of Colombian petroleum production, a major source of national revenue. In collaboration with... (read more)
2006-07-24 12:00:00

China's Digital Mapping Plan

China’s State Bureau of Surveying and Mapping (SBSM) has embarked on Digital China, an ambitious project listed in China's 10th five-year plan that aims to map the entire country digitally. The project aims at decision support for the country's leaders in natural disaster prevention and city planning. The state media reported that the mapping project would also include registration of personal details regarding individuals in over 600 Chinese cities and more than 2,000 counties. The SBSM has already created three digital map series of the country with a level of detail comparable to map scales of 1:4 million, 1:1 million... (read more)
2005-03-10 12:00:00

Mapping the Oceans

Indian Naval Hydrographic Department
With long experience in the production of navigational charts, nautical publications and electronic charts, today the Indian Naval Hydrographic Department (NHD) is well equipped to meet national and international requirements and naval defence needs. The author opens the door on these activities.<P> National Hydrographic Office NHO is the authority responsible for Electronic Navigational Charts (ENC), charts and other nautical publications in India, and as part of its international interests also provides coverage of marine-safety information in the Indian Ocean, Arabian Sea and Bay of Bengal. Nautical/navigational products are made available to mariners through the depots in Mumbai and Visakhapatnam. The... (read more)
2008-02-19 12:00:00

Mapping Africa for Africa

Mapping Africa for Africa (MAFA) is a new initiative intended to accelerate the pace of geo-information activities in Africa and to be a catalyst for promoting the importance of geo-spatial information for decision support in the development of the continent. As a contribution to African renaissance, MAFA is expected to spearhead a plan of action providing the fundamental geo-spatial information/maps for sustainable development in support of projects under the New Partnership for Africa’s Development (NEPAD). MAFA results from the ‘Durban Statement on MAFA’ agreed at the International Cartographic Association conference held in South Africa in 2003. It presents recommendations and... (read more)
2006-01-10 12:00:00
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