AVHRR (Advanced Very High Resolution Radiometer) spatial resolution is actually very coarse at 1.1 km. But its revisit times are “very high” at just one day.
Copernicus is the world’s largest and most ambitious Earth observation program in existence today with its Sentinel satellites taking center stage.
As our population grows and climate is at risk, remote sensing of the environment solves large-scale environmental issues for the land, ocean and atmosphere.
If you want the sharpest satellite imagery in the world, harness the power of DigitalGlobe imagery. Each pixel in a Worldview-3 image is about 31 cm.
Have you ever wondered how your GPS receiver works? They use a technique called trilateration, which measures distances, not angles as in triangulation.
IKONOS provides panchromatic, natural-color, color-infrared and stereo images for cartographic, remote sensing and photogrammetric applications.
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.
Nearest neighbor classification is a powerful approach to classify segmented objects based on specific statistics and training samples chosen by the user.
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.
NDVI quantifies vegetation with the difference between near-infrared (which is reflected by vegetation) and red light (which is absorbed by vegetation).