This application shows how mountaintop mining in Central Appalachia has changed the hydrology and water chemistry of two catchments that have been heavily mined. The study follows a paired watershed approach, where we have two reference catchment that are unmined paired with two catchments that have been mined. The small catchments (~1km2) are Rich's Branch (reference) and Laurel Branch (99% mined), while the large ones (35 km2) are Left Fork (reference) and Mud River. To interact with the app click on a catchment and then select tabs.

This application was built by Matt Ross and Fabian Nippgen with support from NSF EAR


The top graph shows total daily rainfall. The middle graph shows total daily discharge and the bottom graph shows daily mean specific conductance, a proxy measure for salinity and total ion concentration. Bottom graphs show cumulative discharge trends. To change sites click on a new watershed on the map. You can zoom into each graph to look at specific time periods.





Baseflow was seperated from stormflow using methods following Hewlett and Hibbert 1966. This method assumes a linear rise in baseflow during storms, which is why you will see linear baseflow increases during large or successive storms