Wetland – a fragile water-dependent ecosystem

Wetlands are fragile water-dependent ecosystems, often hidden under forest canopies and that can also turn into sources of methane, while, elsewhere, an oversupply of water can lead to inundation and destructive flooding. There is much evidence of Global Navigation Satellite System reflectometry capabilities in sensing inundation and wetlands even in the presence of vegetation – ESA’s HydroGNSS Scout mission uses this method to measure soil moisture, one of the mission’s four goals that are linked to the water cycle.