Geoscience Australia has today released two new bodies of work adding to its range of cartographic information used by decision makers, researchers, industry and the public. The first is a collection of 28 digital maps that will give oceanographers, scientific researchers, resource exploration companies, tourism operators and the public a greater understanding of […]
Search results for "Earth Observation"
Quasars help in accurate positioning
Scientists will be able to measure points on Earth much more accurately, following analysis of data that confirms the movement of our solar system in relation to the centre of the Galaxy. Since 1728, after pioneering work by astronomer James Bradley to verify Earth’s passage around the Sun, it has been confirmed that […]
Best of the Blogs 29 March 2011
Lidar News links us to an MIT article talking about a new smartphone app that allows quick creation of 3d models, just by snapping a few pics on your phone’s camera. GIS Lounge has an interesting piece on using thermal imagery to view relative heat loss of buildings at night, in order to […]
Australia needs eye in the sky to help with floods, says professor
Australia is in need of an early warning system to increase its ability to manage natural disasters, according to Linlin Ge, associate professor at the University of New South Wales School of Surveying and Spatial Information Systems. Writing in the Melbourne Age, Ge says the current floods in Queensland – where tens of thousands of […]
Mapping the Ocean Floor
JON FAIRALL It’s a truism that the surfaces of Mars and the Moon are better mapped that the surface of the Earth. Three-quarters of our globe is covered by a layer of water several kilometres thick. Mapping through the murk is difficult and expensive. However, the news is not all bad. New technologies are making […]
Cyclone Sidr Devastates Bangladesh
On 15 November 2007, a category 4 cyclone, called Cyclone Sidr, came ashore in Bangladesh. Wind speeds reached 225 km/h; some waves were eight metres high. More than 3200 people died. Bangladesh is a prisoner of its geography. Three rivers, the Brahmaputra, the Ganges and the Meghna, rise in the Himalaya mountains before they converge […]
Adding Value to Spatial Information
ED GARVIN The rapid growth of interest in such websites as Google Earth and Virtual Earth has been an overall benefit to the spatial industry. However, there has been much discussion regarding the use of the spatial information from these websites. It is centred around the value that they add, the value that they imply […]
Satellite-Based Augmentation Systems
ROBERT LORIMER America has the wide area augmentation system (WAAS), Europe the European GNSS overlay system (EGNOS), Japan the multifunction satellite augmentation system (MSAS) and India is launching its GPS-aided Geo-augmented navigation (GAGAN) system. They are all satellite-based augmentation systems (SBAS) and are already delivering improved accuracy and integrity for GPS users over much of […]
