This satellite image above is taken over northern part of Serbia from Sentinel 2A satellite in 1st part of the 2016. It has false color that emphasis the agricultural fields.
Software like QGIS is open source software (FREE in simple words) and it is being used all around the world in different areas including hydrogeology. Also, satellites images like LANDSAT, Sentinel 2A and ASTER are now free for all users around the world.
Use it in your hydrogeology investigation and research! Here are some examples of published papers on this subject:
and limitations. Hydrogeol. J. 15, 71-74.
catchments, SE Australia. Hydrogeol. J. 15, 75-96.
Leblanc, M., Favreau, G., Tweed, S., Leduc, C., Razack, M., Mofor, L., 2007. Remote sensing for groundwater modelling in large semiarid areas: Lake Cad Basin, Africa. Hydrogeol. J. 15, 97-100.
D. Oikonomidis, S. Dimogianni, N. Kazakis, K. Voudouris, 2015. GIS/Remote Sensing-based methodology for groundwater potentiality assessment in Tirnavos area, Greece, Journal of Hydrology