There are many applications which can take advantage of hyperspectral remote sensing. 1  Atmosphere: water vapor, cloud properties, aerosols. 2  Ecology: chlorophyll, leaf water, cellulose, pigmemts, lignin. 3  Geology: mineral and soil types.  Coastal Waters: chlorophyll, phytoplankton, dissolved organic materials, suspended sediments.
The digital footprint applicable specifically to the World Wide Web is the internet footprint; also known as cyber shadow, electronic footprint, or digital shadow, information is left behind as a result of a user's web-browsing and stored as cookies.
1 : an impression of the foot on a surface. 2a : the area on a surface covered by something a tire with a wide footprint the footprint of a laser beamb : range of operation (as of a service) a global footprint. 3 : a marked effect, impression, or impact left a footprint in the field of research.