Editing GIS and Remote Sensing (section)

== <span style="color: #FFFFFF;">Evaluating</span> ==
Evaluating a map or sensor: (1) **Accuracy**: How close is the "Map point" to the real world (e.g., within 1 meter or 100 meters)? (2) **Temporal Resolution**: How often does the satellite pass over (once a day or once a month)? (3) **Cloud Cover**: Is the remote sensing useless in rainy countries? (4) **Projection Distortion**: Because the Earth is round and maps are flat, every map "stretches" something (Size, Shape, or Distance). Is the map using the "Right" stretch for its goal?
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