Selective availability is the intentional degradation of GPS signals. When selective availability was enabled, this added error horizontally and vertically to GPS signals.
As our population grows, this poses new challenges to monitoring the environment and climate change. Remote sensing of the environment helps solve environmental issues for the land, ocean, atmosphere and climate change.
If you want the sharpest satellite imagery in the world, then you should harness the power of DigitalGlobe satellite imagery. Each pixel in a Worldview-3 image is about the size of home plate on a baseball diamond. That’s about 31 cm.
Think you know remote sensing satellites? Think again. This satellite list has the top 50 satellites that silently orbit the Earth. In 30 words or less.
During an 11-day mission, Space Shuttle Radar Topography (SRTM) mission captured Earth’s elevation at 1 arc-second (30 meters) for over 80% of the Earth.
A polar orbit satellite travels pole-to-pole. For a sun-synchronous orbit, it passes over any given point on Earth’s surface at the same local solar time.
Object-based Image Analysis (OBIA) segments an image by grouping pixels together into vector objects. Using these objects, you classify as land cover types.
GISGeography.com
We use cookies to optimize site functionality and give you the best possible experience.Accept