Noticeable changes to the surface of the Earth usually takes many years of weathering, erosion and deposition. Some natural events like landslides and volcanos can cause dramatic, isolated changes, whereas active, open mine pits create rapid and constant changes over time.
Due to the changing nature of a mine site, many of L3Harris’ mining customers monitor their locations using regularly updated satellite imagery. The imagery is used as a method to track the progress of the mine and help with environmental recovery, future planning and in some cases, detect signs of minerals.
When considering which imaging sensor to use, it is important to understand the resolution of the sensor which is defined with spatial, temporal, spectral and radiometric resolutions. Spatial resolution is a measurement of how much detail is captured in the image based on pixel size. The smaller the spatial resolution, the more detail is represented. Mine monitoring can be done at a variety of spatial resolutions from 0.3m up to 3m per pixel resolution, depending upon the detail needed.