![]() You can learn different things at each scale. Does the image cover 1 kilometre or 100? What level of detail is shown? Images published on the Earth Observatory include a scale. Before you begin to interpret an image, it helps to know what the scale is. The MODIS satellite provides a very wide view of an area (image: MODIS)ĭepending on the image resolution, a city may fill an entire satellite image with grids of streets or it may be a mere dot on a landscape. In the process, they usually sacrifice the big picture. ![]() Such satellites zoom in on small areas to collect fine details down to the scale of individual houses or cars. Some images from military or commercial satellites are detailed enough to show many of these things. One of the first things people want to do when they look at a satellite image is identify the places that are familiar to them: their home, school, or place of business a favorite park or tourist attraction or a natural feature like a lake, river, or mountain ridge. They will help you get oriented enough to pull valuable information out of satellite images.īased on an article courtesy of NASA. These tips come from the Earth Observatory’s writers and visualizers, who use them to interpret images daily.
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