Data Sources
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| Theme | Sub-theme | Source | Date | Type of Geodata | Availability | Parameters |
|---|---|---|---|---|---|---|
| Natural Resources | Vegetation | NPS: Vegetation Mapping Inventory Project of Boston Harbor Islands National Recreation Area | 2008 | Polygons | Public | *Salt marsh locations, sand dune system, native oak |
| Endangered plant species | NPS | N/A | Points | Not public | *Endangered plant species (Angelica lucida and seabeach doc) | |
| Bird habitat | NPS, Massachusetts Audubon, Mass CZM | N/A | Points, Polygons | Not public | *American oystercatchers, common eiders, and other wading bird habitats | |
| Cultural Resources | Cultural locations | Boston University/NPS | N/A | Points | Not public | *Cottages, historical graveyards, lighthouses, historical landmarks, etc. |
| Infrastructure/Facilties | Points of interest | Western Carolina University/ National Parks Service | N/A | Points | Not public | Paths, Roads, Trails, *Assets |
| Building Structures (2-D) | MassGIS | N/A | Polygons | Public | Turn cultural and infrastructure points into polygons. | |
| Infrastructure/Facilties (Focal Resources) | Digitized (Amy Carrillo) | N/A | Polygons | Not public | Facilities not captured from MassGIS roof prints (docks/Piers, campgrounds, etc). Turn BU/NPS cultural and infrastructure points into polygons. | |
| Storm Risk | 2030 Coastal Flood Exceedance Probabilities (MC-FRM) | MA Executive Office of Energy and Environmental Affairs/MassCZM | 2022 | Raster | Public | 10% AEP, 1% AEP |
| 2050 Coastal Flood Exceedance Probabilities (MC-FRM) | MA Executive Office of Energy and Environmental Affairs/MassCZM | 2022 | Raster | Public | 10% AEP, 1% AEP | |
| 2070 Coastal Flood Exceedance Probabilities (MC-FRM) | MA Executive Office of Energy and Environmental Affairs/MassCZM | 2022 | Raster | Public | 10% AEP, 1% AEP | |
| Erosion Risk | Land Cover | MassGIS Data: 2016 Land Cover/Land Use | 2016 | Polygons | Public | "Determine an area's stability levels by looking at unvegetated land cover." |
| Retreating Bluffs | Boston University (Department of Earth & Environment) | N/A | Line | Not public | Bluff retreat zones | |
| Shoreline Type | Boston University (Department of Earth & Environment) | N/A | Line | Not public | Sandy shorelines are the most erodible shorelines. | |
| Flood Risk | Digital Elevation Model (DEM) | MassGIS Data: Lidar DEM and Shaded Relief. 2021 USGS Lidar Central eastern Massachusetts | 2021 | Raster | Public | Low elevation areas can be flooded or submerged depending on the sea level rise scenario. |
| Boundary | 9 Islands Boundary | Digitized (Amy Carrillo) | N/A | Polygon | Not public | Used for clipping. |