Ground measurements in remote sensing

Hazard situations, ecological risks and destructive processes on our planet caused by natural disasters or anthropogenic activity are in the focus of scientific research and occupy the attention of state and government authorities. Recently, numerous projects on the environment study and control have been developed and carried out in different countries. In most of these projects a first and essential step is land cover change monitoring at a regional scale. Remote sensing is the main source of information covering large territories, often being predictive and in this way giving possibilities for an appropriate and on-time decision making. The necessary data can be provided by a complex of instruments installed on airborne and satellite platforms thus implementing the multiscale, multipurpose and multitemporal approach. Such an insight on data acquisition and application approach is dictated by the interrelated nature of many environmental problems which determines the need of data integration and information sharing between different databases. On the other hand, since environmental situations are most often site-specific, the regional monitoring is a reasonable approach to begin with.
For the remote sensing devices calibration and aerospace data validation it is necessary to perform accompanying to aerospace experiments the ground truth measurements of various parameters of observed objects. Performing ground truth measurements enables to obtain the evaluation of accuracy of aerospace remote sensing data processing methods being worked out and developed, to study functional links between optical- biological fields and characteristics of radiation ascending from the water.
The results from aerospace observations and data processing technologies will permit to work out recommendations for detecting ecological systems in a risk state, for predicting ecological catastrophes and mitigation of their consequences.