WAL MAYR Airborne laser scanning is a relatively recent technology that has revolutionised the capture of terrain information. It involves the emission and measurement of laser pulses from an airborne scanner. Until recently, it was mainly used to capture large areas of relatively low-resolution digital terrain data. However, in the past few years a range […]
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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 […]
Rebuilding Aceh Post-Tsunami
JON FAIRALL On 26 December 2004, a devastating tsunami, triggered by the Great Sumatra-Andaman earthquake, hit Banda Aceh. The wave killed more than 186,000 people in Aceh, but the UN puts the overall casualty count at 229,866. Indonesian government figures cite 513,278 refugees in the weeks following the disaster. Whatever the final toll, it was […]
Best of the Blogs 15 January 2013
With Summer heating up the Sydney Morning Herald has run a piece on the ‘Nerve centre at heart of Australian fires’ – the GIS systems at the headquarters of the NSW Rural Fire Service. And speaking of fires, the Converstion has a piece that tries to put the recent Tasmanian bushfires into perspective […]
