... below the resolution and, therefore, undetectable. Resolution of sound waves and depth of penetration are inversely related; cost of surveys and processing and source and receiver spacing ... sampling and assessment of baseline water chemistry and mineralogy. Well spacing needs to consider sensitivity and attenuation, risk factors, groundwater flow direction and rate, and account for ... as a spectral band. These images are then combined and form a three dimensional hyperspectral cube for processing and analysis. Sensors may be airborne, satellite mounted, or hand held. •...