Micro-sats for Maxi-monitoring14/03/2011
|A new 400-kg mini-satellite with small onboard high-resolution radar will appear on orbit in 2013, opening up new possibilities for operational detailed imagery of emergency situations. The small radar satellite has been being developed at British company SSTL since 2009, as reported by RS department head Luis Gomes at the last, 13th MDDC Meeting in February.|
The conference was attended by representatives from six Disaster Monitoring Constellation (DMC) member countries (Great Britain, Nigeria, China, Algeria, Spain, Turkey), the European Space Agency, UK government departments, geo-informatics innovation companies from Japan, China, Netherlands and Russia.
DMC Imaging International (DMCII) commercial company was established in the interests of commercial use of DMC satellite resources and contracted to undertake activities to delineate areas of felled Amazonian forests, opium poppy plantations in Afghanistan, and to evaluate productivity of agricultural regions.
The DMC system will later be replenished with new satellites: a 10m-resolution radar satellite with 100km swath, and an optical 350-kg 0.7 m resolution satellite with scene size of 17km. The price of all mentioned SSTL projects is lower than that of other traditional satellites. The company has also developed EarthMapper project, aimed at regular global Earth imaging with high frequency and the resolution of 22m without placing orders in advance.
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3D model of a real forest from airborne Lidar
The terrain was prepared from aerial ortho-image of 30 cm resolution. Lidar derived Canopy Height Model was worked at 15 cm resolution. For keeping the uniformity with Lidar derived layers, the ortho-image was used at 15 cm pixel size.