Contributions to remote sensing : applications of thermal infrared

From applications over land and over sea, it has been found, that remote sensing by thermal infrared method reveals small temperature differences and shows temperature distributions in a useful way. Relative data and time series of images enable to reconstruct the surface kinetics behaviour. The infrared method reveals new aspects of the phenomena and so supplements our standard methods of survey and observation. In certain applications it is of advantage to incorporate other remote sensing techniques such as photography, providing additional information. As the method provides information on extended area's it also enables to optimize the utilization of costly field labor. In the following applications of the infrared method it has been found contributive, although not yet completely developed as an operational tool: - groundwater flow near the surface and the seepage of water from a water body - water intrusion into the land - large scale temparature distribution.