The Riparian Zone Estimator Tool (RipZET) is a GIS-based decision-support tool under development for estimating riparian zones at the watershed and/or project scale. The tool provides reach-scale functional riparian width estimates based on average height of mature riparian vegetation, the steepness of hillslopes adjacent to the channel, and the floodplain inundation extent for large storm events. The appropriate width estimate for a reach is then determined based on the riparian functions associated with different channel types, which range from steep headwater channels to low-gradient, meandering channels with broad floodplains. Read More...

Contaminant Data Display and Download Tool or CD3 is an innovative visualization tool that enables users to perform spatial queries for water quality data from the San Francisco Estuary and Delta. Data can be dynamically mapped and downloaded as an Excel file. New datasets are regularly made available through this tool. Read More...

The Northern San Diego County Lagoons Historical Ecology Investigation draws on hundreds of historical documents to analyze and reconstruct historical landscape conditions for six northern San Diego County estuaries prior to the major modifications of the late 19th and 20th centuries. This study shows that the lagoons experienced highly dynamic, variable environmental conditions and supported a diverse array of habitats and native species in the recent past. Though the lagoons have experienced widespread transformation over the past centuries, elements of the lagoon ecosystems have persisted. Read More...

Flood Control 2.0 is an ambitious regional effort aimed at helping restore stream and wetland habitats, water quality, and shoreline resilience around San Francisco Bay. The project leverages local resources from several forward-looking flood control agencies to redesign major flood control channels so that they provide both future flood conveyance and ecological benefit under a changing climate. Read More...