Meet Bernie. Bernie Sanders is a Democratic candidate for President of the United States. In 2006, he was elected to the U.S. Senate after 16 years as Vermontâs sole congressman in the House of Representatives. Bernie is now serving his second term in the U.S. Senate after winning re-election in 2012 with 71 percent of the vote.
Satellite imagery at 30-centimeter resolution provides the clearest, most detailed view of the ground from space. See sample imagery to find out for yourself. If you use commercial satellite imagery to map, monitor or assess situations, materials, or infrastructure, you are probably accustomed to 50-centimeter spatial resolution.
Salt flats are ideal for calibrating the distance measurement equipment of satellites because they are large, stable surfaces with strong reflection, similar to that of ice sheets. As the largest salt flat on Earth, Salar de Uyuni is especially suitable for this purpose. In the low-rain period from April to November, due to the absence of industry and its high elevation, the skies above Salar de Uyuni are very clear, and the air is dry.