Satellite Data Shows Silicon Valley Aquifers Bounced Back From Drought

California’s five-year drought taxed the state’s water supplies like never before, especially its groundwater. Many areas of the state saw huge drops in aquifer water levels, with resulting surface subsidence and even damage to infrastructure such as roads and canals. As a result, water agencies and scientists began looking for ways to monitor groundwater more closely. One that emerged uses sensors mounted on Earth-orbiting satellites.