In this online workshop intended for GIS users, geospatial and historical ecology experts demonstrate ArcGIS Pro methods used to develop data layers for analyses of the reach of tides and long-term wetland habitat change within tidal estuaries across the United States.

The historical component focuses on acquiring, georectifying, interpreting, and digitizing historical Coast Survey maps from the 19th century, and comparing those data layers with more contemporary habitat maps from the National Wetland Inventory (NWI).

The elevation-based component demonstrates how geospatial researchers can use digital elevation models (DEMs) and existing tidal datum stations to estimate the potential reach of tides in estuaries. This estuary extent can then be compared to that from historical and NWI habitat maps.