That's close enough to show movement of the ice, even at the glacially slow rates involved with giant Antarctic ice sheets.
Resolution refers to the area represented by each pixel on the satellite image.
We can integrate conventional maps with digital satellite images or scanned aerial photos. This type of quantitative analysis allows scientists to map and analyze physical data and socio-economic data on the same coordinate system. GIS techniques can also be used to analyze data about the health of a population. Dots representing cases are placed on street maps, then geographers trace the resulting patterns of diffusion. Remote sensor data can provide clues to environmental factors which may contribute to the cause or influence the spread of a particular disease.