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Our primary challenges with this sensor network is to ensure that sensors perform as intended in these extremely porous shale-based substrates. Sensors are calibrated to this specific substrate prior to installation, to ensure the accuracy of this data.

In addition to the moisture sensors, we will collect additional environmental data (rainfall, light, soil and air temperature, relative humidity) which will allow us to model environmental and data from various sedum species for comparison to other green roof installations in other part of the United States and the world.

Check out the University of Maryland Green Roof pages (Under Research Sites) for more specific information and updates on this research.