What kind of data to use?

There is a large variety of different optical as well as radar sensor types available today that can provide information at all kinds of spatial, temporal and spectral resolution applicable for many different humanitarian disaster scenarios.

Acquiring satellite data is a trade-off between resolution, extent, and prize.

For our applications we are using two main groups of optical satellite images:

1) Very high spatial resolution (VHR) images (pixel size <1m) are used for camp assessment and monitoring purposes

2) High resolution (HR) images (pixel size between 4 and 30m) are used for groundwater exploration and environmental monitoring

In several application scenarios the operational use of different radar satellite / SAR data techniques were successfully tested for population estimation, natural resources, and environmental impact or hazards assessments.