Very High Resolution satellite imagery from some commercial satellites, like the World View satellite series operated by Digital Globe, can provide sub-meter digital imagery. Two images collected within the same pass of the satellite can be combined using computerized stereophotogrammetric techniques and create a digital elevation model. One of the stereo softwares that are openly available to use is the Ames Stereopipeline. This program was originally developed for the Lunar Reconnaissance Mission by the NASA Ames Research Center. By taking advantage of the exceptional flat terrain of mangrove environments, canopy height models can easily be generated using these techniques.
Mangrove Science 