3D movies are making jaws drop in theaters. High above the Earth, 3D technology is improving the monitoring of natural and urban environments. This 3D is from a satellite radar technique known as Synthetic Aperture Radar, or SAR for short.
The European Space Agency (ESA) recently highlighted SAR on its website. The technique measures polarized information in signals sent from Earth to a satellite sensor. Images from different angles are used to create a 3D effect.
The data is particularly useful for assessing water resources and carbon stocks, the Agency says.
The link includes information on how SAR is being used to monitor wetlands in France and fire-scarred lands in northern Canada.